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Cheap flights from Ontario to Portland (ONT - PWM) from $124

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 9/18. 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 — PWM
kesä 3 — kesä 101
From?
To?
ma 6/3
ma 6/10
1 adult, Economy
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Cheap flight deals from Ontario to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Portland (PWM). 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 toukokuu 29, 2024.

Popular in

April

Cheapest in

January

Round-trip from

$293

One-way from

$156
High demand for flights, 64% potential price rise
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Best time to find cheap flights, 53% potential price drop
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From Ontario to Portland
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One-way flight from Ontario to Portland
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What is the cheapest day to fly round-trip from Ontario to Portland, Maine?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Ontario to Portland, Maine?

To save on the cost of your flight from Ontario to Portland, Maine, book at least 51 days before your planned departure. Booking around this time can save you about 147% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $450 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $718.

What is the cheapest month to fly from Ontario to Portland, Maine?

September is one of the best times of the year to fly to Portland, Maine from Ontario. Prices for September average $511 per person but you can even find prices for as low as $231. The most expensive prices can be found in the month of December. Opting for a September flight can save you 30% on your journey compared to booking in December

When is the cheapest time to fly from Ontario to Portland, Maine (ONT - PWM)?

A simple way to save on the total cost of your ticket is to fly from Ontario to Portland, Maine at noon. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight in the morning.

Cheap JetBlue flights from Ontario to Portland

Explore cheap flight options specifically provided by JetBlue for the route between Ontario and Portland. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated toukokuu 29, 2024.
Take a look at some of the lowest-priced JetBlue flights heading from Ontario to Portland. Make sure to double check the flight details before booking.
ma 9/911:36 pmONT - PWM
1 stop9h 35mJetBlue
la 9/141:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/28$248
ke 9/1811:36 pmONT - PWM
1 stop9h 35mJetBlue
ke 9/251:06 pmPWM - ONT
1 stop11h 59mJetBlue
Deal found 5/29$274
pe 9/1311:36 pmONT - PWM
1 stop9h 35mJetBlue
ma 9/161:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/29$317
to 9/511:36 pmONT - PWM
1 stop9h 35mJetBlue
ma 9/91:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/28$343
la 10/1211:36 pmONT - PWM
1 stop9h 35mJetBlue
ma 10/211:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/28$386
to 9/1911:36 pmONT - PWM
1 stop9h 35mJetBlue
su 9/221:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/28$583
ke 6/511:40 pmONT - PWM
1 stop10h 49mJetBlue
ti 6/112:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 5/27$665
to 6/611:40 pmONT - PWM
1 stop10h 49mJetBlue
ti 6/112:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 5/27$718
to 6/611:40 pmONT - PWM
1 stop10h 49mJetBlue
ma 6/102:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 5/28$833

Cheap Delta flights from Ontario to Portland

Explore cheap flight options specifically provided by Delta for the route between Ontario and Portland. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated toukokuu 29, 2024.
Some of the lowest-priced Delta flights we've found at this time heading from Ontario to Portland. Deals are refreshing constantly so come back soon for more options.
pe 6/76:30 pmONT - PWM
2 stops13h 15mDelta
ti 6/1111:57 amPWM - ONT
2 stops14h 03mDelta
Deal found 5/28$434
to 9/1912:45 pmONT - PWM
1 stop7h 44mDelta
su 9/226:05 amPWM - ONT
1 stop8h 17mDelta
Deal found 5/27$582
ke 6/1910:00 pmONT - PWM
1 stop11h 33mDelta
to 6/271:40 pmPWM - ONT
1 stop9h 02mDelta
Deal found 5/28$677
ti 6/187:05 amONT - PWM
1 stop11h 53mDelta
to 6/271:40 pmPWM - ONT
1 stop9h 02mDelta
Deal found 5/28$732
to 6/1310:00 pmONT - PWM
2 stops11h 07mDelta
ma 6/171:40 pmPWM - ONT
1 stop9h 02mDelta
Deal found 5/27$1,433
ke 8/2110:00 pmONT - PWM
2 stops11h 13mDelta
su 8/254:57 pmPWM - ONT
2 stops10h 02mDelta
Deal found 5/29$1,983
to 6/610:00 pmONT - PWM
2 stops11h 07mDelta
ma 6/101:40 pmPWM - ONT
1 stop9h 02mDelta
Deal found 5/27$2,965

Cheap Ontario to Portland flights in May & June 2024

Find cheap flight options from Ontario to Portland specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Prices were last updated on toukokuu 29, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Portland in 2024. More deals are always being added, so be sure to check back regularly.
pe 6/711:59 pmONT - PWM
2 stops12h 34mAmerican Airlines
ti 6/114:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 5/28$428
pe 6/76:30 pmONT - PWM
2 stops13h 15mDelta
ti 6/1111:57 amPWM - ONT
2 stops14h 03mDelta
Deal found 5/28$434
la 6/810:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
ti 6/114:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 5/29$451
la 6/810:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
ti 6/114:00 pmPWM - ONT
2 stops10h 59mAmerican Airlines
Deal found 5/29$456
la 6/86:30 amONT - PWM
2 stops12h 32mAmerican Airlines
ti 6/114:00 pmPWM - ONT
2 stops10h 59mAmerican Airlines
Deal found 5/29$463
pe 6/710:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
ti 6/114:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 5/28$548
ke 6/511:40 pmONT - PWM
1 stop10h 49mJetBlue
ti 6/112:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 5/27$665
ke 6/1910:00 pmONT - PWM
1 stop11h 33mDelta
to 6/271:40 pmPWM - ONT
1 stop9h 02mDelta
Deal found 5/28$677
to 6/611:40 pmONT - PWM
1 stop10h 49mJetBlue
ti 6/112:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 5/27$718

Ontario to Portland 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Portland in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated toukokuu 29, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Portland in 2024. More deals are always being added, so be sure to check back regularly.
ma 9/911:36 pmONT - PWM
1 stop9h 35mJetBlue
la 9/141:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/28$248
ke 9/1811:36 pmONT - PWM
1 stop9h 35mJetBlue
ke 9/251:06 pmPWM - ONT
1 stop11h 59mJetBlue
Deal found 5/29$274
ke 8/286:32 amONT - PWM
2 stops12h 56mAmerican Airlines
ti 9/38:02 amPWM - ONT
2 stops13h 46mAmerican Airlines
Deal found 5/29$296
pe 9/1311:36 pmONT - PWM
1 stop9h 35mJetBlue
ma 9/161:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/29$317
to 9/511:36 pmONT - PWM
1 stop9h 35mJetBlue
ma 9/91:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/28$343
pe 9/1311:59 pmONT - PWM
2 stops12h 38mAmerican Airlines
ma 9/163:34 pmPWM - ONT
1 stop9h 38mAmerican Airlines
Deal found 5/29$367
la 10/1211:36 pmONT - PWM
1 stop9h 35mJetBlue
ma 10/211:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 5/28$386
ke 8/286:00 amONT - PWM
2 stops14h 59mUnited Airlines
ke 9/49:40 amPWM - ONT
2 stops14h 51mUnited Airlines
Deal found 5/28$426
pe 6/711:59 pmONT - PWM
2 stops12h 34mAmerican Airlines
ti 6/114:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 5/28$428

Ontario to Portland flights leaving soon

Find last-minute flight options from Ontario to Portland 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 2,696,634 searches. Data last updated toukokuu 29, 2024.
Check out these flights departing soon from Ontario to Portland. Users should examine the flight details to ensure there are no surprises.
pe 6/711:59 pmONT - PWM
2 stops12h 34mAmerican Airlines
ti 6/114:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 5/28$428
pe 6/76:30 pmONT - PWM
2 stops13h 15mDelta
ti 6/1111:57 amPWM - ONT
2 stops14h 03mDelta
Deal found 5/28$434
la 6/810:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
ti 6/114:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 5/29$451
la 6/810:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
ti 6/114:00 pmPWM - ONT
2 stops10h 59mAmerican Airlines
Deal found 5/29$456
la 6/86:30 amONT - PWM
2 stops12h 32mAmerican Airlines
ti 6/114:00 pmPWM - ONT
2 stops10h 59mAmerican Airlines
Deal found 5/29$463
pe 6/710:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
ti 6/114:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 5/28$548
ke 6/511:40 pmONT - PWM
1 stop10h 49mJetBlue
ti 6/112:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 5/27$665
to 6/611:40 pmONT - PWM
1 stop10h 49mJetBlue
ti 6/112:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 5/27$718
pe 6/76:25 pmONT - PWM
2 stops13h 07mUnited Airlines
ti 6/115:30 amPWM - ONT
3 stops18h 44mUnited Airlines
Deal found 5/28$799

One-way flights to Portland from Ontario

Search for one-way flight options from Ontario to Portland. 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 2,696,634 searches. Data last updated toukokuu 29, 2024.
If you're seeking multiple options on one-way flights from Ontario to Portland, be sure to check out these deals, which are updated often. Users needing a return flight from Ontario to Portland should utilize the search form above.
ke 9/1811:36 pmONT - PWM
1 stop9h 35mJetBlue
Deal found 5/29$124
la 7/137:59 pmONT - PWM
2 stops16h 06mFrontier
Deal found 5/29$156
ke 6/1210:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
Deal found 5/28$181
ke 6/1211:59 pmONT - PWM
2 stops12h 11mAmerican Airlines
Deal found 5/28$187
to 9/1911:36 pmONT - PWM
1 stop9h 35mJetBlue
Deal found 5/28$193
ti 6/2510:45 pmONT - PWM
1 stop10h 25mAmerican Airlines
Deal found 5/28$222
ma 8/195:15 amONT - PWM
1 stop7h 31mUnited Airlines
Deal found 5/28$223
ti 6/2511:59 pmONT - PWM
2 stops12h 11mAmerican Airlines
Deal found 5/28$228
la 8/175:10 amONT - PWM
1 stop7h 33mUnited Airlines
Deal found 5/28$269

Find flights from Ontario to Portland within your budget

Customize your flight search to find flights from Ontario to Portland 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 2,696,634 searches. Data last updated toukokuu 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$248 - $582

Route

Depart

Return

Price

OntarioPortland

ONT - PWM

ONTPWM

Ontario

ma 9/9

1 stop9h 35m

Portland

la 9/14

1 stop12h 15m

$248

OntarioPortland

ONT - PWM

ONTPWM

Ontario

ke 9/18

1 stop9h 35m

Portland

ke 9/25

1 stop11h 59m

$274

OntarioPortland

ONT - PWM

ONTPWM

Ontario

ke 8/28

2 stops12h 56m

Portland

ti 9/3

2 stops13h 46m

$296

OntarioPortland

ONT - PWM

ONTPWM

Ontario

pe 9/13

1 stop9h 35m

Portland

ma 9/16

1 stop12h 15m

$317

OntarioPortland

ONT - PWM

ONTPWM

Ontario

to 9/5

1 stop9h 35m

Portland

ma 9/9

1 stop12h 15m

$343

OntarioPortland

ONT - PWM

ONTPWM

Ontario

pe 9/13

2 stops12h 38m

Portland

ma 9/16

1 stop9h 38m

$367

OntarioPortland

ONT - PWM

ONTPWM

Ontario

ke 8/28

2 stops14h 59m

Portland

ke 9/4

2 stops14h 51m

$426

OntarioPortland

ONT - PWM

ONTPWM

Ontario

ke 8/28

2 stops12h 56m

Portland

ti 9/3

1 stop10h 14m

$445

OntarioPortland

ONT - PWM

ONTPWM

Ontario

to 9/19

1 stop7h 44m

Portland

su 9/22

1 stop8h 17m

$582

Flights are sorted by cheapest first

Deals found on 5/28

When is the cheapest time to fly from Ontario to Portland, Maine?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Portland. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Portland, Maine flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday 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 Portland

Have a flexible travel schedule? Discover the best time to fly to Portland 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 Portland by month

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

PWM

Temperature

23 - 68 °F

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated toukokuu 29, 2024.
Read reviews from past customers who have flown JetBlue, Delta and United Airlines from Ontario to Portland. 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
9,194 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Entertainment

7.3

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,194 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Entertainment

7.3

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.0
Very good
10,476 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Entertainment

7.3

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

JetBlue
7.6
Good
4,370 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Entertainment

7.3

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
10,784 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Entertainment

7.3

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,302 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Entertainment

7.3

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Portland. 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 Portland, Maine for under $300 on Cheapflights?

    Yes, there are multiple flights from Ontario to Portland, Maine for under $300. The cheapest flight booked recently is on JetBlue for just $248, but on average you can expect to pay $440.

  • Are there last-minute flights available from Ontario to Portland, Maine for under $500?

    There are currently 12+ open flights from Ontario to Portland, Maine within the next 7 days for less than $500.

  • What are the cheapest airlines flying from Ontario to Portland, Maine round-trip?

    Currently priced at $248, JetBlue will fly you from Ontario to Portland, Maine and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $296 and $426, respectively. JetBlue is 55% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Ontario to Portland, Maine one-way?

    $124 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Frontier and American Airlines, with prices starting from $156 and $181, respectively.

  • What does ONT to PWM mean?

    Great question - ONT to PWM just means Ontario Airport to Portland Airport. Now you’ll know what these unique codes when you look for flights!

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

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

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

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

  • How can I find direct flights from Ontario to Portland?

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

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

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

    Many airlines flying from Ontario to Portland 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 Portland?

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

    The Ontario to Portland, Maine flight deals you see on this page were last updated on 5/29.

  • What are the most popular airlines that fly from Ontario to Portland, Maine?

    American Airlines, Delta and United Airlines are the most popular airlines when flying from Ontario to Portland, Maine.

  • When is the best time to book a flight from Ontario to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Portland, Maine (average of $293). Flying from Ontario to Portland, Maine in April is currently the most expensive (average of $498). 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

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

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Top 3 airlines flying from Ontario to Portland

Discover the top 3 airlines that operate flights from Ontario to Portland. 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 2,696,634 searches. Data last updated toukokuu 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$192Average$459FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$304Average$617FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$332Average$523FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Ontario to Portland by cabin class

Find flights from Ontario to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Portland?

When you search for this flight from Ontario to Portland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Portland?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Portland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to Portland with no change fees?

Need flexible booking options for your flight to Portland from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Portland become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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