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Ontario

$223+ Cheap flights from Bellingham to Ontario (BLI - ONT)

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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Bellingham to Ontario

Cheapest flights from Bellingham to Ontario
Explore the most affordable flight options available from Bellingham to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/204:19 pm
BLI
-
ONT
1 stop7h 13m
Alaska Airlines
Wed 2/256:14 am
ONT
-
BLI
1 stop4h 59m
Alaska Airlines
Deal found 1/20$241
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/173:55 pm
BLI
-
ONT
1 stop6h 49m
Alaska Airlines
Wed 3/256:00 am
ONT
-
BLI
1 stop6h 16m
Alaska Airlines
Deal found 1/21$251
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/173:55 pm
BLI
-
ONT
1 stop6h 49m
Alaska Airlines
Mon 3/237:00 am
ONT
-
BLI
1 stop15h 50m
Alaska Airlines
Deal found 1/21$260
This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/234:19 pm
BLI
-
ONT
1 stop22h 49m
Alaska Airlines
Fri 2/274:02 pm
ONT
-
BLI
1 stop19h 11m
Alaska Airlines
Deal found 1/20$275
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:00 am
BLI
-
ONT
1 stop26h 06m
Multiple Airlines
Mon 3/233:30 pm
ONT
-
BLI
1 stop8h 00m
Multiple Airlines
Deal found 1/21$278
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/173:55 pm
BLI
-
ONT
1 stop6h 49m
Alaska Airlines
Sun 3/227:00 am
ONT
-
BLI
1 stop15h 50m
Alaska Airlines
Deal found 1/21$280
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/173:55 pm
BLI
-
ONT
1 stop6h 49m
Alaska Airlines
Sat 3/2110:33 am
ONT
-
BLI
1 stop7h 06m
Alaska Airlines
Deal found 1/21$281
This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:15 am
BLI
-
ONT
1 stop12h 08m
Alaska Airlines
Sat 4/47:00 am
ONT
-
BLI
1 stop15h 50m
Alaska Airlines
Deal found 1/20$283
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:00 am
BLI
-
ONT
1 stop9h 37m
Multiple Airlines
Mon 3/233:30 pm
ONT
-
BLI
1 stop8h 00m
Multiple Airlines
Deal found 1/21$284
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1311:53 am
BLI
-
ONT
1 stop11h 39m
Alaska Airlines
Tue 3/247:00 am
ONT
-
BLI
1 stop15h 50m
Alaska Airlines
Deal found 1/21$294

Find flight deals from Bellingham to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Bellingham (BLI) to Ontario (ONT). 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$241
(Alaska Airlines)

One-way from

$223
(Alaska Airlines)

Popular in

December

Cheapest in

September

Average price

$279
Provider with most accurate pricing for Bellingham-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bellingham-Ontario flights.
Search Deals
From Bellingham to Ontario
Search Deals
One-way flight from Bellingham to Ontario
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bellingham to Ontario 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 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Bellingham to Ontario that are best for you.

Fly from

Bellingham

Fly to

Ontario

Route

Depart

Return

Price

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sat 2/21

5:04 pm-11:32 pm

1 stop6h 28m

Ontario

Thu 2/26

4:02 pm-11:13 am

1 stop19h 11m

$241

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 2/20

4:19 pm-11:32 pm

1 stop7h 13m

Ontario

Wed 2/25

6:14 am-11:13 am

1 stop4h 59m

$241

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 3/18

6:19 pm-11:59 pm

1 stop5h 40m

Ontario

Wed 3/25

6:00 am-12:16 pm

1 stop6h 16m

$251

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 3/17

3:55 pm-10:44 pm

1 stop6h 49m

Ontario

Mon 3/23

7:00 am-10:50 pm

1 stop15h 50m

$260

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Mon 2/23

4:19 pm-3:08 pm

1 stop22h 49m

Ontario

Fri 2/27

4:02 pm-11:13 am

1 stop19h 11m

$275

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 3/17

3:55 pm-10:44 pm

1 stop6h 49m

Ontario

Sun 3/22

7:00 am-10:50 pm

1 stop15h 50m

$280

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Mon 3/30

8:15 am-8:23 pm

1 stop12h 08m

Ontario

Sat 4/4

7:00 am-10:50 pm

1 stop15h 50m

$283

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 3/13

6:00 am-3:37 pm

1 stop9h 37m

Ontario

Mon 3/23

3:30 pm-11:30 pm

1 stop8h 00m

$284

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sat 3/14

11:53 am-11:32 pm

1 stop11h 39m

Ontario

Mon 3/23

7:00 am-10:50 pm

1 stop15h 50m

$303

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 2/22

5:15 am-11:08 am

1 stop5h 53m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Compare providers for flights from Bellingham to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bellingham to Ontario in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bellingham-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bellingham-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bellingham-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bellingham-Ontario flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bellingham-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bellingham to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Bellingham 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.

Cheapflights Insights

Everything you need to know about your flight from Bellingham to Ontario

What is the cheapest month to book a flight from Bellingham to Ontario?

Currently, June is the cheapest month in which you can book a flight from Bellingham to Ontario (average of $63). Flying from Bellingham to Ontario in December is currently the most expensive (average of $140). 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.

Related info for your journey

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

  • How long is the flight from Bellingham to Ontario?

    For as low as $241, Alaska Airlines can have you in Ontario from Bellingham in 6h 28m. The distance between Bellingham and Ontario is about 1049 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bellingham 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.

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

    Currently, June is the cheapest month in which you can book a flight from Bellingham to Ontario (average of $63). Flying from Bellingham to Ontario in December is currently the most expensive (average of $140). 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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