What is the cheapest airline to fly from Oakland, California to Ontario round-trip?

Our cheapest airline available from Oakland, California to Ontario is Alaska Airlines. Our recent data shows that you can find tickets from as low as $294 on this airline.

How recently were the Oakland, California to Ontario flight deals updated?

The Oakland, California to Ontario flight deals you see on this page were last updated on 6/7.

What is the cheapest month to book a flight from Oakland, California to Ontario?

Currently, October is the cheapest month in which you can book a flight from Oakland, California to Ontario (average of $239). Flying from Oakland, California to Ontario in July is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

What are the most popular airlines that fly from Oakland, California to Ontario?

Before booking your flight from Oakland, California to Ontario check out the most popular airlines for this route: Alaska Airlines, Delta or Frontier.

Can I find flights from Oakland, California to Ontario for under $300 on Cheapflights?

Yes, there are multiple flights from Oakland, California to Ontario for under $300. The cheapest flight booked recently is on Alaska Airlines for just $294, but on average you can expect to pay $330.

Are there last-minute flights available from Oakland, California to Ontario for under $600?

There are currently 20+ open flights from Oakland, California to Ontario within the next 7 days for less than $600.

What airports do I use to fly from Oakland to Ontario?

If you book a flight from Oakland to Ontario, you will be flying from Oakland to Ontario. Flights to Ontario (ONT) from Oakland (OAK) take 1h 20m for a nonstop flight. There are 4 flights from Oakland to Ontario per day from 6 airlines.

What does OAK to ONT mean?

OAK and ONT are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. OAK to ONT refers to a flight route from Oakland Airport to Ontario Airport.

Can I find deals for flights from Oakland to Ontario that include extra baggage allowance?

The amount of baggage you can bring on your Oakland to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Can I find deals on flights from Oakland to Ontario with specific airlines?

Yes, Cheapflights allows you to browse and filter Oakland to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Can I find deals for flights from Oakland to Ontario that include hotel bookings?

Yes. In addition to deals on Oakland to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Oakland to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oakland to Ontario.

Can I find deals for business class flights from Oakland to Ontario?

Yes. Cheapflights offers flight deals from Oakland to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Can I find deals for flights from Oakland to Ontario that allow pets onboard?

Many airlines flying from Oakland to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Can I find deals on last-minute flights from Oakland to Ontario?

Yes, you can often find last-minute deals on Oakland to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Flights from Oakland, CA to Ontario, CA from $153

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Cheap flight deals from Oakland to Ontario

Popular in	January
Cheapest in	February
Round-trip from	$238
One-way from	$153

High demand for flights, 36% potential price rise

Search Deals

Best time to find cheap flights, 47% potential price drop

Search Deals

From Oakland to Ontario

Search Deals

One-way flight from Oakland to Ontario

Search Deals

What is the cheapest day to fly round-trip from Oakland, California to Ontario?

Monday is generally a great day to depart. Flying on this day could help you save up to 65%.

How far in advance should I book a flight from Oakland, California to Ontario?

To save on the cost of your flight from Oakland, California to Ontario, book at least 36 days before your planned departure. Booking around this time can save you about 55% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $139 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $189.

What is the cheapest month to fly from Oakland, California to Ontario?

April can be a great time to fly to Ontario from Oakland, California with a flight ticket averaging about $148. Cheapflights users have found deals in the month of April for as cheap as $44. The most expensive prices can be found in the month of November.

What is the cheapest time of day to fly from OAK to ONT?

A simple way to save on the total cost of your ticket is to fly from Oakland, California to Ontario in the morning. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight in the evening.

Cheap Oakland to Ontario flights in June & July 2024

Check out some of the best flight deals from Oakland to Ontario in 2024. Check back soon for alternative fares.

Wed 7/176:00 amOAK - ONT

1 stop17h 59mAlaska Airlines

Wed 7/314:24 pmONT - OAK

1 stop7h 31mAlaska Airlines

Deal found 6/7$294

Wed 7/178:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Wed 7/316:00 amONT - OAK

1 stop17h 55mAlaska Airlines

Deal found 6/7$299

Tue 7/96:00 amOAK - ONT

1 stop17h 59mAlaska Airlines

Wed 7/106:00 amONT - OAK

1 stop17h 55mAlaska Airlines

Deal found 6/7$314

Tue 7/98:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Wed 7/106:00 amONT - OAK

1 stop17h 55mAlaska Airlines

Deal found 6/7$319

Wed 7/178:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Wed 7/317:00 amONT - OAK

2 stops16h 55mAlaska Airlines

Deal found 6/7$324

Mon 7/86:00 amOAK - ONT

1 stop27h 05mAlaska Airlines

Fri 7/127:55 pmONT - OAK

1 stop12h 17mAlaska Airlines

Deal found 6/7$342

Mon 7/86:00 amOAK - ONT

1 stop27h 05mAlaska Airlines

Thu 7/117:00 amONT - OAK

1 stop25h 12mAlaska Airlines

Deal found 6/7$343

Wed 7/38:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Wed 7/1010:00 amONT - OAK

1 stop13h 55mAlaska Airlines

Deal found 6/7$348

Wed 7/38:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Mon 7/87:55 pmONT - OAK

1 stop12h 17mAlaska Airlines

Deal found 6/6$352

Oakland to Ontario 2024 flight deals

Check out some of the best flight deals from Oakland to Ontario in 2024. Check back soon for alternative fares.

Wed 7/176:00 amOAK - ONT

1 stop17h 59mAlaska Airlines

Wed 7/314:24 pmONT - OAK

1 stop7h 31mAlaska Airlines

Deal found 6/7$294

Wed 7/178:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Wed 7/316:00 amONT - OAK

1 stop17h 55mAlaska Airlines

Deal found 6/7$299

Wed 8/142:40 pmOAK - ONT

1 stop9h 19mAlaska Airlines

Sat 8/177:00 amONT - OAK

1 stop25h 12mAlaska Airlines

Deal found 6/7$313

Tue 7/98:19 pmOAK - ONT

1 stop12h 46mAlaska Airlines

Tue 7/1610:00 amONT - OAK

1 stop13h 55mAlaska Airlines

Deal found 6/7$314

Wed 8/147:00 pmOAK - ONT

2 stops28h 59mAlaska Airlines

Sat 8/177:00 amONT - OAK

1 stop25h 12mAlaska Airlines

Deal found 6/7$317

Tue 7/98:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Wed 7/106:00 amONT - OAK

1 stop17h 55mAlaska Airlines

Deal found 6/7$319

Tue 8/276:22 pmOAK - ONT

1 stop27h 58mAlaska Airlines

Sat 8/317:00 amONT - OAK

2 stops16h 52mAlaska Airlines

Deal found 6/6$321

Tue 9/101:27 pmOAK - ONT

1 stop8h 48mAlaska Airlines

Tue 9/247:00 amONT - OAK

1 stop5h 47mAlaska Airlines

Deal found 6/7$322

Wed 7/178:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Wed 7/317:00 amONT - OAK

2 stops16h 55mAlaska Airlines

Deal found 6/7$324

Oakland to Ontario flights leaving soon

Users seeking a last-minute flight from Oakland to Ontario should consider booking one of these fares. To prevent any unwanted surprises, users should verify their flight info before booking.

Fri 6/145:50 amOAK - ONT

1 stop17h 52mDelta

Fri 6/215:00 pmONT - OAK

1 stop19h 02mDelta

Deal found 6/7$595

Wed 6/125:50 amOAK - ONT

1 stop17h 52mDelta

Fri 6/215:00 pmONT - OAK

1 stop19h 02mDelta

Deal found 6/7$635

Fri 6/145:50 amOAK - ONT

1 stop17h 52mDelta

Tue 6/181:25 pmONT - OAK

1 stop10h 30mDelta

Deal found 6/7$665

Wed 6/125:50 amOAK - ONT

1 stop17h 52mDelta

Thu 6/205:35 amONT - OAK

1 stop18h 20mDelta

Deal found 6/7$705

Thu 6/132:40 pmOAK - ONT

1 stop18h 25mAlaska Airlines

Fri 6/2110:00 amONT - OAK

1 stop13h 55mAlaska Airlines

Deal found 6/7$735

Fri 6/146:00 amOAK - ONT

2 stops16h 40mAlaska Airlines

Fri 6/2110:00 amONT - OAK

1 stop13h 55mAlaska Airlines

Deal found 6/7$745

Thu 6/132:40 pmOAK - ONT

1 stop18h 25mAlaska Airlines

Thu 6/208:20 pmONT - OAK

1 stop27h 35mAlaska Airlines

Deal found 6/7$770

Fri 6/146:00 amOAK - ONT

2 stops16h 40mAlaska Airlines

Thu 6/208:20 pmONT - OAK

1 stop27h 35mAlaska Airlines

Deal found 6/7$780

Sat 6/157:12 pmOAK - ONT

1 stop15h 28mAlaska Airlines

Sun 6/164:24 pmONT - OAK

1 stop7h 31mAlaska Airlines

Deal found 6/7$809

One-way flights to Ontario from Oakland

Users in need of a one-way flight from Oakland to Ontario can choose from these deals. Those seeking round-trip flights from Oakland to Ontario should utilize the search form at the the top of the page.

Tue 8/62:40 pmOAK - ONT

1 stop28h 45mAlaska Airlines

Deal found 6/7$153

Tue 8/68:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Deal found 6/7$158

Mon 8/58:19 pmOAK - ONT

1 stop27h 40mAlaska Airlines

Deal found 6/7$167

Wed 8/78:19 pmOAK - ONT

1 stop12h 46mAlaska Airlines

Deal found 6/7$173

Sat 8/34:50 pmOAK - ONT

1 stop7h 09mAlaska Airlines

Deal found 6/7$176

Wed 9/46:00 amOAK - ONT

2 stops16h 15mAlaska Airlines

Deal found 6/6$180

Mon 9/309:27 amOAK - ONT

1 stop12h 48mAlaska Airlines

Deal found 6/7$185

Wed 7/108:52 amOAK - ONT

2 stops15h 07mAlaska Airlines

Deal found 6/6$187

Thu 8/86:00 amOAK - ONT

1 stop9h 29mAlaska Airlines

Deal found 6/7$189

Find flights from Oakland to Ontario within your budget

Fly from

Fly to

Budget

$294 - $843

Route

Depart

Return

Price

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 7/17

1 stop17h 59m

Ontario

Wed 7/31

1 stop7h 31m

$294

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 7/17

2 stops15h 07m

Ontario

Wed 7/31

1 stop17h 55m

$299

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 8/14

1 stop9h 19m

Ontario

Sat 8/17

1 stop25h 12m

$313

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 7/9

1 stop17h 59m

Ontario

Wed 7/10

1 stop17h 55m

$314

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 8/14

2 stops28h 59m

Ontario

Sat 8/17

1 stop25h 12m

$317

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 7/9

2 stops15h 07m

Ontario

Wed 7/10

1 stop17h 55m

$319

OaklandOntario

OAK - ONT

OAKONT

Oakland

Thu 6/20

1 stop10h 58m

Ontario

Mon 6/24

1 stop10h 32m

$651

OaklandOntario

OAK - ONT

OAKONT

Oakland

Thu 6/20

1 stop22h 58m

Ontario

Sun 6/23

1 stop16h 01m

$726

OaklandOntario

OAK - ONT

OAKONT

Oakland

Fri 6/21

1 stop28h 18m

Ontario

Sun 6/23

1 stop16h 01m

$843

Flights are sorted by cheapest first

Deals found on 6/7

What is the cheapest day to fly from Oakland, California to Ontario?

Morning

Noon

Afternoon

Evening

All times are departure.

Travelers seeking maximum savings on their Oakland, California to Ontario flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Search Deals

Best time to book a flight from Oakland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Oakland with our price prediction graph.

Estimated round-trip price

Temperature and rainfall in Ontario by month

LAX Temperature	57.2 - 73.4 °F

LAX

Temperature

57.2 - 73.4 °F

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with Alaska Airlines, Volaris and Delta from Oakland to Ontario by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.1

Very good

9,236 reviews

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines

8.1

Very good

9,236 reviews

Alaska Airlines

8.1

Very good

9,236 reviews

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta

8.0

Very good

10,333 reviews

Alaska Airlines

8.1

Very good

9,236 reviews

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Hawaiian Airlines

8.0

Very good

2,294 reviews

Alaska Airlines

8.1

Very good

9,236 reviews

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Volaris

6.6

Okay

1,460 reviews

Alaska Airlines

8.1

Very good

9,236 reviews

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Frontier

6.2

Okay

3,976 reviews

Alaska Airlines

8.1

Very good

9,236 reviews

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

What airports do I use to fly from Oakland to Ontario?
If you book a flight from Oakland to Ontario, you will be flying from Oakland to Ontario. Flights to Ontario (ONT) from Oakland (OAK) take 1h 20m for a nonstop flight. There are 4 flights from Oakland to Ontario per day from 6 airlines.
Can I find flights from Oakland, California to Ontario for under $300 on Cheapflights?
Yes, there are multiple flights from Oakland, California to Ontario for under $300. The cheapest flight booked recently is on Alaska Airlines for just $294, but on average you can expect to pay $330.
Are there last-minute flights available from Oakland, California to Ontario for under $600?
There are currently 20+ open flights from Oakland, California to Ontario within the next 7 days for less than $600.
What is the cheapest airline to fly from Oakland, California to Ontario round-trip?
Our cheapest airline available from Oakland, California to Ontario is Alaska Airlines. Our recent data shows that you can find tickets from as low as $294 on this airline.
What does OAK to ONT mean?
OAK and ONT are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. OAK to ONT refers to a flight route from Oakland Airport to Ontario Airport.
Can I find deals for flights from Oakland to Ontario that include extra baggage allowance?
The amount of baggage you can bring on your Oakland to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.
Can I find deals on flights from Oakland to Ontario with specific airlines?
Yes, Cheapflights allows you to browse and filter Oakland to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.
Can I find deals for flights from Oakland to Ontario that include hotel bookings?
Yes. In addition to deals on Oakland to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Oakland to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oakland to Ontario.
Can I find deals for business class flights from Oakland to Ontario?
Yes. Cheapflights offers flight deals from Oakland to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Can I find deals for flights from Oakland to Ontario that allow pets onboard?
Many airlines flying from Oakland to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.
Can I find deals on last-minute flights from Oakland to Ontario?
Yes, you can often find last-minute deals on Oakland to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.
How recently were the Oakland, California to Ontario flight deals updated?
The Oakland, California to Ontario flight deals you see on this page were last updated on 6/7.
What are the most popular airlines that fly from Oakland, California to Ontario?
Before booking your flight from Oakland, California to Ontario check out the most popular airlines for this route: Alaska Airlines, Delta or Frontier.
What is the cheapest month to book a flight from Oakland, California to Ontario?
Currently, October is the cheapest month in which you can book a flight from Oakland, California to Ontario (average of $239). Flying from Oakland, California to Ontario in July is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Oakland to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.

Ontario car rentals

Los Angeles Airport car rentals

Ontario Airport car rentals

Burbank Bob Hope Airport car rentals

Long Beach Municipal Airport car rentals

Los Angeles car rentals

San Francisco car rentals

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Fresno car rentals

Burbank car rentals

Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 7, 2024.

Top 6 airlines flying from Oakland to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$38	Average$108	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$46	Average$111	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$64	Average$153	FlexibilityNo cancel fee	On-timeN/A
Breeze Airways	Cheapest$78	Average$143	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$100	Average$268	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$106	Average$384	FlexibilityNo cancel fee	On-time75%

Chicago to Phoenix flights

San Francisco to London flights

Los Angeles to Manila flights

New York to Hong Kong flights

Austin to Houston flights

San Francisco to Tokyo flights

Las Vegas to San Diego flights

Houston to Mexico City flights

Kansas City to Orlando flights

New York to Denver flights

San Diego to Honolulu flights

Oakland, California to Porto flights

Search flights from Oakland to Ontario by cabin class

Hourly flight availability from Oakland to Ontario

7%of flight departures	Early morningMidnight to 6 am
34%of flight departures	Morning6 am to noon
33%of flight departures	AfternoonNoon to 6 pm
26%of flight departures	Evening6 pm to midnight

Midnight

6 AM

Noon

6 PM

Weekly flight availability from Oakland to Ontario

Sunday	4daily flights
Monday	5daily flights
Tuesday	3daily flights
Wednesday	4daily flights
Thursday	5daily flights
Friday	5daily flights
Saturday	3daily flights

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Cheap flights from Oakland to Ontario (OAK - ONT) from $153

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

Cheap flight deals from Oakland to Ontario

Popular in

Cheapest in

Round-trip from

One-way from

What is the cheapest day to fly round-trip from Oakland, California to Ontario?

How far in advance should I book a flight from Oakland, California to Ontario?

What is the cheapest month to fly from Oakland, California to Ontario?

What is the cheapest time of day to fly from OAK to ONT?

Cheap Oakland to Ontario flights in June & July 2024

Find cheap flight options from Oakland to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,045,324 searches. Prices were last updated on June 7, 2024.

Check out some of the best flight deals from Oakland to Ontario in 2024. Check back soon for alternative fares.

Oakland to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Oakland and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,045,324 searches. Data last updated June 7, 2024.

Check out some of the best flight deals from Oakland to Ontario in 2024. Check back soon for alternative fares.

Oakland to Ontario flights leaving soon

Users seeking a last-minute flight from Oakland to Ontario should consider booking one of these fares. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Ontario from Oakland

Users in need of a one-way flight from Oakland to Ontario can choose from these deals. Those seeking round-trip flights from Oakland to Ontario should utilize the search form at the the top of the page.

Find flights from Oakland to Ontario within your budget

What is the cheapest day to fly from Oakland, California to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Oakland to Ontario. Price data was last updated on June 2, 2024.

Best time to book a flight from Oakland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Oakland with our price prediction graph.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing Ontario

Related info for your journey

Find useful and relevant information for your journey from Oakland to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from Oakland to Ontario?

Can I find flights from Oakland, California to Ontario for under $300 on Cheapflights?

Are there last-minute flights available from Oakland, California to Ontario for under $600?

What is the cheapest airline to fly from Oakland, California to Ontario round-trip?

What does OAK to ONT mean?

Can I find deals for flights from Oakland to Ontario that include extra baggage allowance?

Can I find deals on flights from Oakland to Ontario with specific airlines?

Can I find deals for flights from Oakland to Ontario that include hotel bookings?

How can I find direct flights from Oakland to Ontario?

Can I find deals for business class flights from Oakland to Ontario?

Can I find deals for flights from Oakland to Ontario that allow pets onboard?

Can I find deals on last-minute flights from Oakland to Ontario?

How recently were the Oakland, California to Ontario flight deals updated?

What are the most popular airlines that fly from Oakland, California to Ontario?

What is the cheapest month to book a flight from Oakland, California to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Oakland to OntarioSee prices for flight routes from nearby airports that may be better suited for you.

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Oakland to Ontario

Popular flight searches

Check out other popular destinations found by fellow travelers in 2024

Search flights from Oakland to Ontario by cabin class

Find flights from Oakland to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Oakland to Ontario

Find hourly flight availability from Oakland to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 7, 2024.

Weekly flight availability from Oakland to Ontario

Explore weekly flight availability from Oakland to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 7, 2024.

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User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

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Alternative routes for Oakland to Ontario
See prices for flight routes from nearby airports that may be better suited for you.