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Ontario

$143+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
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 February 13, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/266:00 am
BLI
-
ONT
1 stop26h 04m
Multiple Airlines
Wed 4/297:29 pm
ONT
-
BLI
1 stop28h 06m
Multiple Airlines
Deal found 2/11$188
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Thu 2/266:00 am
BLI
-
ONT
1 stop7h 11m
Multiple Airlines
Mon 3/23:28 pm
ONT
-
BLI
1 stop5h 46m
Multiple Airlines
Deal found 2/11$219
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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.
Sat 3/75:04 pm
BLI
-
ONT
1 stop6h 28m
Alaska Airlines
Tue 3/106:14 am
ONT
-
BLI
1 stop4h 59m
Alaska Airlines
Deal found 2/10$283
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 2/278:00 am
BLI
-
ONT
1 stop8h 01m
Multiple Airlines
Tue 3/32:06 pm
ONT
-
BLI
2 stops47h 20m
Multiple Airlines
Deal found 2/11$290
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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.
Wed 3/43:55 pm
BLI
-
ONT
1 stop6h 49m
Alaska Airlines
Fri 3/136:14 am
ONT
-
BLI
1 stop4h 59m
Alaska Airlines
Deal found 2/10$299
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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.
Sat 4/186:19 pm
BLI
-
ONT
1 stop5h 40m
Alaska Airlines
Mon 4/207:00 am
ONT
-
BLI
1 stop15h 50m
Alaska Airlines
Deal found 2/11$303
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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 4/176:19 pm
BLI
-
ONT
1 stop5h 40m
Alaska Airlines
Mon 4/207:00 am
ONT
-
BLI
1 stop15h 50m
Alaska Airlines
Deal found 2/12$311
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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 stop26h 04m
Alaska Airlines
Sat 4/47:00 am
ONT
-
BLI
1 stop15h 50m
Alaska Airlines
Deal found 2/12$313
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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 4/216:19 pm
BLI
-
ONT
1 stop5h 40m
Alaska Airlines
Mon 4/2710:39 am
ONT
-
BLI
1 stop25h 41m
Alaska Airlines
Deal found 2/11$328
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 3/511:53 am
BLI
-
ONT
1 stop11h 39m
Alaska Airlines
Thu 3/124:02 pm
ONT
-
BLI
1 stop19h 11m
Alaska Airlines
Deal found 2/11$333

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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$188
(Kiwi.com)

One-way from

$143
(Alaska Airlines)

Popular in

February

Cheapest in

September

Average price

$533
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. 30% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 13, 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

Sun 4/26

6:00 am-8:04 am

1 stop26h 04m

Ontario

Wed 4/29

7:29 pm-11:35 pm

1 stop28h 06m

$188

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sat 3/7

5:04 pm-11:32 pm

1 stop6h 28m

Ontario

Tue 3/10

6:14 am-11:13 am

1 stop4h 59m

$283

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Thu 5/14

5:53 pm-11:58 pm

1 stop6h 05m

Ontario

Mon 5/18

6:00 am-1:18 pm

1 stop7h 18m

$286

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 4/28

4:01 pm-11:48 pm

1 stop7h 47m

Ontario

Mon 5/4

3:26 pm-11:59 pm

1 stop8h 33m

$288

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sat 3/21

12:56 pm-11:59 pm

1 stop11h 03m

Ontario

Wed 3/25

7:00 am-10:50 pm

1 stop15h 50m

$291

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 7/7

7:19 pm-11:56 pm

1 stop4h 37m

Ontario

Tue 7/14

6:00 am-1:14 pm

1 stop7h 14m

$299

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 3/4

3:55 pm-10:44 pm

1 stop6h 49m

Ontario

Fri 3/13

6:14 am-11:13 am

1 stop4h 59m

$299

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 4/17

6:19 pm-11:59 pm

1 stop5h 40m

Ontario

Mon 4/20

7:00 am-10:50 pm

1 stop15h 50m

$311

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Mon 3/30

8:15 am-10:19 am

1 stop26h 04m

Ontario

Sat 4/4

7:00 am-10:50 pm

1 stop15h 50m

$313

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 4/21

6:19 pm-11:59 pm

1 stop5h 40m

Ontario

Mon 4/27

10:39 am-12:20 pm

1 stop25h 41m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 16 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice 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 FlightHub the most. FlightHub 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 January is currently the most expensive (average of $156). 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 $283, 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 January is currently the most expensive (average of $156). 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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