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Cheap flights from Ontario to Santa Rosa (ONT - STS) from $217

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 7/30. 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.
ONT — STS
Jun 17 — Jun 241
From?
To?
Mon 6/17
Mon 6/24
1 adult, Economy
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Cheap flight deals from Ontario to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Santa Rosa (STS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2024.

Popular in

November

Cheapest in

January

Round-trip from

$268

One-way from

$217
High demand for flights, 37% potential price rise
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Best time to find cheap flights, 42% potential price drop
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From Ontario to Santa Rosa Sonoma County
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One-way flight from Ontario to Santa Rosa Sonoma County
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What is the cheapest day to fly round-trip from Ontario to Santa Rosa?

Tuesday flights are generally found to be more expensive for flights from Ontario to Santa Rosa. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Santa Rosa.

How far in advance should I book a flight from Ontario to Santa Rosa?

Find a great deal and save up to 71% by booking at least 49 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Santa Rosa within the next two weeks, with the cheapest ticket starting at $133.

What is the cheapest month to fly from Ontario to Santa Rosa?

Our data shows that April tends to be the cheapest month to fly to Santa Rosa from Ontario. Users have commonly found prices around $141 for the month, but tickets can be as low as $38. Due to multiple factors, prepare for potentially higher prices in March.

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

It’s optimal to fly from Ontario to Santa Rosa at noon. By choosing this option you can save up to 67% on the cost of your flight, compared to a flight in the morning.

Cheap Ontario to Santa Rosa flights in June & July 2024

Find cheap flight options from Ontario to Santa Rosa specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Prices were last updated on June 12, 2024.
These are some of the best deals we've found on flights to Santa Rosa in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 7/910:00 amONT - STS
1 stop11h 56mAlaska Airlines
Tue 7/162:44 pmSTS - ONT
1 stop9h 15mAlaska Airlines
Deal found 6/12$447
Tue 7/96:00 amONT - STS
2 stops28h 41mAlaska Airlines
Tue 7/162:44 pmSTS - ONT
1 stop9h 15mAlaska Airlines
Deal found 6/12$452
Thu 7/49:24 amONT - STS
1 stop6h 20mAmerican Airlines
Mon 7/84:11 pmSTS - ONT
1 stop5h 29mAmerican Airlines
Deal found 6/11$466
Thu 7/114:24 pmONT - STS
1 stop5h 32mUndisclosed Carrier
Thu 7/182:44 pmSTS - ONT
1 stop9h 15mUndisclosed Carrier
Deal found 6/11$467
Thu 7/116:00 amONT - STS
1 stop15h 56mAlaska Airlines
Thu 7/183:45 pmSTS - ONT
2 stops30h 55mAlaska Airlines
Deal found 6/11$471
Thu 7/116:00 amONT - STS
2 stops12h 00mAlaska Airlines
Thu 7/183:45 pmSTS - ONT
2 stops30h 55mAlaska Airlines
Deal found 6/11$486
Tue 7/911:20 amONT - STS
2 stops10h 36mAlaska Airlines
Tue 7/166:35 amSTS - ONT
2 stops17h 24mAlaska Airlines
Deal found 6/12$528
Thu 6/139:24 amONT - STS
1 stop6h 20mUndisclosed Carrier
Fri 6/144:14 pmSTS - ONT
1 stop5h 26mUndisclosed Carrier
Deal found 6/11$531
Sat 7/139:19 amONT - STS
1 stop6h 24mAmerican Airlines
Mon 7/154:11 pmSTS - ONT
1 stop5h 29mAmerican Airlines
Deal found 6/12$582

Ontario to Santa Rosa 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Santa Rosa in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
These are some of the best deals we've found on flights to Santa Rosa in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 8/19:19 amONT - STS
1 stop6h 22mAmerican Airlines
Sat 8/34:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/11$372
Fri 9/68:49 pmONT - STS
1 stop25h 18mAlaska Airlines
Sun 9/87:55 pmSTS - ONT
1 stop26h 20mAlaska Airlines
Deal found 6/11$412
Wed 8/149:35 amONT - STS
1 stop6h 10mAmerican Airlines
Tue 8/204:15 pmSTS - ONT
1 stop26h 12mAmerican Airlines
Deal found 6/11$420
Fri 9/137:00 amONT - STS
1 stop10h 58mAlaska Airlines
Sun 9/1510:58 amSTS - ONT
1 stop11h 17mAlaska Airlines
Deal found 6/11$442
Tue 7/910:00 amONT - STS
1 stop11h 56mAlaska Airlines
Tue 7/162:44 pmSTS - ONT
1 stop9h 15mAlaska Airlines
Deal found 6/12$447
Tue 7/96:00 amONT - STS
2 stops28h 41mAlaska Airlines
Tue 7/162:44 pmSTS - ONT
1 stop9h 15mAlaska Airlines
Deal found 6/12$452
Thu 7/49:24 amONT - STS
1 stop6h 20mAmerican Airlines
Mon 7/84:11 pmSTS - ONT
1 stop5h 29mAmerican Airlines
Deal found 6/11$466
Thu 7/114:24 pmONT - STS
1 stop5h 32mUndisclosed Carrier
Thu 7/182:44 pmSTS - ONT
1 stop9h 15mUndisclosed Carrier
Deal found 6/11$467
Thu 7/116:00 amONT - STS
1 stop15h 56mAlaska Airlines
Thu 7/183:45 pmSTS - ONT
2 stops30h 55mAlaska Airlines
Deal found 6/11$471

Ontario to Santa Rosa flights leaving soon

Find last-minute flight options from Ontario to Santa Rosa for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
Consider one of these great deals we found on last-minute flights from Ontario to Santa Rosa. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 6/139:24 amONT - STS
1 stop6h 20mUndisclosed Carrier
Fri 6/144:14 pmSTS - ONT
1 stop5h 26mUndisclosed Carrier
Deal found 6/11$531
Wed 6/266:00 amONT - STS
1 stop7h 50mAlaska Airlines
Tue 7/211:21 amSTS - ONT
1 stop7h 54mAlaska Airlines
Deal found 6/11$592
Wed 6/266:00 amONT - STS
1 stop7h 50mAlaska Airlines
Fri 6/283:45 pmSTS - ONT
2 stops17h 20mAlaska Airlines
Deal found 6/11$627
Wed 6/266:00 amONT - STS
2 stops12h 00mAlaska Airlines
Fri 6/283:45 pmSTS - ONT
2 stops17h 20mAlaska Airlines
Deal found 6/11$632
Wed 6/269:24 amONT - STS
1 stop6h 19mAmerican Airlines
Fri 6/284:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/11$676
Mon 6/247:26 pmONT - STS
1 stop20h 18mAmerican Airlines
Fri 6/284:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/11$777
Sun 6/237:26 pmONT - STS
1 stop20h 18mAmerican Airlines
Fri 6/284:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/11$809
Thu 6/204:36 pmONT - STS
1 stop23h 08mAmerican Airlines
Mon 6/244:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/11$996
Fri 6/214:36 pmONT - STS
1 stop23h 07mAmerican Airlines
Mon 6/244:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/11$1,025

One-way flights to Santa Rosa from Ontario

Search for one-way flight options from Ontario to Santa Rosa. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
Users traveling one-way from Ontario to Santa Rosa can select one of these great deals. Users needing a return flight from Ontario to Santa Rosa should utilize the search form above.
Tue 7/304:24 pmONT - STS
1 stop21h 26mAlaska Airlines
Deal found 6/11$217
Thu 7/114:24 pmONT - STS
1 stop5h 32mAlaska Airlines
Deal found 6/11$221
Tue 7/1610:00 amONT - STS
2 stops8h 00mAlaska Airlines
Deal found 6/11$226
Tue 7/168:20 pmONT - STS
1 stop25h 36mAlaska Airlines
Deal found 6/11$227
Fri 7/59:19 amONT - STS
1 stop6h 22mAmerican Airlines
Deal found 6/10$228
Sat 7/276:00 amONT - STS
1 stop7h 50mAlaska Airlines
Deal found 6/12$231
Fri 7/126:00 amONT - STS
1 stop15h 56mAlaska Airlines
Deal found 6/11$237
Thu 7/49:24 amONT - STS
1 stop6h 20mAmerican Airlines
Deal found 6/10$238
Mon 7/158:20 pmONT - STS
1 stop25h 36mAlaska Airlines
Deal found 6/11$257

Find flights from Ontario to Santa Rosa within your budget

Customize your flight search to find flights from Ontario to Santa Rosa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$372 - $471

Route

Depart

Return

Price

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Thu 8/1

1 stop6h 22m

Santa Rosa Sonoma County

Sat 8/3

1 stop5h 26m

$372

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Fri 9/6

1 stop25h 18m

Santa Rosa Sonoma County

Sun 9/8

1 stop26h 20m

$412

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Wed 8/14

1 stop6h 10m

Santa Rosa Sonoma County

Tue 8/20

1 stop26h 12m

$420

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Fri 9/13

1 stop10h 58m

Santa Rosa Sonoma County

Sun 9/15

1 stop11h 17m

$442

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Tue 7/9

1 stop11h 56m

Santa Rosa Sonoma County

Tue 7/16

1 stop9h 15m

$447

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Tue 7/9

2 stops28h 41m

Santa Rosa Sonoma County

Tue 7/16

1 stop9h 15m

$452

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Thu 7/4

1 stop6h 20m

Santa Rosa Sonoma County

Mon 7/8

1 stop5h 29m

$466

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Thu 7/11

1 stop5h 32m

Santa Rosa Sonoma County

Thu 7/18

1 stop9h 15m

$467

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

Thu 7/11

1 stop15h 56m

Santa Rosa Sonoma County

Thu 7/18

2 stops30h 55m

$471

Flights are sorted by cheapest first

Deals found on 6/11

What is the cheapest day to fly from Ontario to Santa Rosa?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Santa Rosa. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Santa Rosa flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday mornings 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 Ontario to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Santa Rosa by month

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

SFO

Temperature

51.8 - 62.6 °F

If weather is an important factor for your trip to Santa Rosa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Santa Rosa

Get insights into the airlines that provide service to Santa Rosa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santa Rosa. Reviews last updated June 12, 2024.
To help decide which airline to fly from Ontario to Santa Rosa, see what other customers have to say about American Airlines, Alaska Airlines and Undisclosed Carrier. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,269 reviews

Entertainment

7.3

Crew

8.6

Food

7.3

Overall

8.1

Comfort

7.9

Boarding

8.2

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
9,269 reviews
Alaska Airlines
8.1
Very good
9,269 reviews

Entertainment

7.3

Crew

8.6

Food

7.3

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

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

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,269 reviews

Entertainment

7.3

Crew

8.6

Food

7.3

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

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

Related info for your journey

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

  • Can I find flights from Ontario to Santa Rosa for under $400 on Cheapflights?

    Yes, there are multiple flights from Ontario to Santa Rosa for under $400. The cheapest flight booked recently is on American Airlines for just $372, but on average you can expect to pay $506.

  • Are there last-minute flights available from Ontario to Santa Rosa for under $600?

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

  • What are the cheapest airlines flying from Ontario to Santa Rosa round-trip?

    Cheapflights users have booked flights from Ontario to Santa Rosa round-trip from $372. Other airlines that can offer you cheap pricing are Alaska Airlines, from $412, and Undisclosed Carrier, from $467.

  • What does ONT to STS mean?

    Great question - ONT to STS just means Ontario Airport to Santa Rosa Sonoma County Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Ontario to Santa Rosa that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Santa Rosa 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 Ontario to Santa Rosa with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Santa Rosa 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 Ontario to Santa Rosa that include hotel bookings?

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

  • How can I find direct flights from Ontario to Santa Rosa?

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

  • Can I find deals for business class flights from Ontario to Santa Rosa?

    Yes. Cheapflights offers flight deals from Ontario to Santa Rosa 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 Ontario to Santa Rosa that allow pets onboard?

    Many airlines flying from Ontario to Santa Rosa 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 Ontario to Santa Rosa?

    Yes, you can often find last-minute deals on Ontario to Santa Rosa 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 Ontario to Santa Rosa flight deals updated?

    The Ontario to Santa Rosa flight deals you see on this page were last updated on 6/12.

  • What is the cheapest month to book a flight from Ontario to Santa Rosa?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Santa Rosa (average of $213). Flying from Ontario to Santa Rosa in June is currently the most expensive (average of $432). 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.

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Alternative routes for Ontario to Santa Rosa
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Top 2 airlines flying from Ontario to Santa Rosa

Discover the top 2 airlines that operate flights from Ontario to Santa Rosa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$78Average$88FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$541FlexibilityNo cancel feeOn-time71%
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Ontario to Saint Thomas Island flights

Search flights from Ontario to Santa Rosa by cabin class

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