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Ontario

$125+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
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 August 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Mon 9/217:00 am
BLI
-
ONT
1 stop26h 09m
Multiple Airlines
Sun 9/278:00 am
ONT
-
BLI
1 stop5h 41m
Multiple Airlines
Deal found 7/31$286
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/204:59 pm
BLI
-
ONT
1 stop14h 05m
Multiple Airlines
Sat 9/262:30 pm
ONT
-
BLI
1 stop23h 11m
Multiple Airlines
Deal found 7/31$295
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/182:01 pm
BLI
-
ONT
1 stop19h 08m
Multiple Airlines
Sun 9/208:24 pm
ONT
-
BLI
1 stop23h 48m
Multiple Airlines
Deal found 7/29$310
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:19 pm
BLI
-
ONT
1 stop15h 45m
Alaska Airlines
Sat 8/223:09 pm
ONT
-
BLI
1 stop7h 22m
Alaska Airlines
Deal found 7/28$347
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 12/85:14 am
BLI
-
ONT
1 stop5h 55m
Alaska Airlines
Wed 12/166:00 am
ONT
-
BLI
1 stop6h 17m
Alaska Airlines
Deal found 7/31$361
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:26 pm
BLI
-
ONT
1 stop15h 50m
Alaska Airlines
Mon 9/283:14 pm
ONT
-
BLI
1 stop8h 30m
Alaska Airlines
Deal found 7/30$376
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 12/1012:46 pm
BLI
-
ONT
1 stop4h 29m
Alaska Airlines
Wed 12/167:30 am
ONT
-
BLI
1 stop4h 36m
Alaska Airlines
Deal found 7/31$386
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 8/287:30 am
BLI
-
ONT
1 stop9h 40m
Alaska Airlines
Sun 8/3010:47 am
ONT
-
BLI
1 stop11h 44m
Alaska Airlines
Deal found 7/28$387
This Orbitz deal was found by Cheapflights users on 8/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:19 pm
BLI
-
ONT
1 stop15h 45m
Alaska Airlines
Sun 9/610:47 am
ONT
-
BLI
1 stop11h 44m
Alaska Airlines
Deal found 8/1$391

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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$286
(Kiwi.com)

One-way from

$125
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$330
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. 17% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 1, 2026.
Use the filters below to find and compare flights from Bellingham to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 8/28

7:19 pm-5:10 pm

2 stops21h 51m

Ontario

Sun 8/30

6:02 am-11:59 pm

1 stop17h 57m

$408
Quickest round-trip

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 11/1

1:57 pm-6:28 pm

1 stop4h 31m

Ontario

Thu 11/5

7:10 pm-11:35 pm

1 stop4h 25m

$451

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 12/20

12:36 pm-5:15 pm

1 stop4h 39m

Ontario

Fri 12/25

6:11 pm-10:58 pm

1 stop4h 47m

$528

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 8/25

7:19 pm-7:03 pm

1 stop23h 44m

Ontario

Sat 8/29

12:00 pm-6:39 pm

1 stop6h 39m

$530

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 8/19

7:19 pm-4:10 pm

2 stops20h 51m

Ontario

Wed 8/26

12:00 pm-10:31 pm

2 stops10h 31m

$583

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 12/16

5:14 am-11:09 am

1 stop5h 55m

Ontario

Sat 12/26

7:00 am-11:53 am

1 stop4h 53m

$607

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 11/25

2:01 pm-8:03 pm

1 stop6h 02m

Ontario

Sun 11/29

6:00 am-1:21 pm

1 stop7h 21m

$622

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 8/23

7:19 pm-4:10 pm

2 stops20h 51m

Ontario

Thu 8/27

6:02 am-11:59 pm

1 stop17h 57m

$633

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sat 9/26

7:00 am-2:16 pm

2 stops7h 16m

Ontario

Mon 9/28

10:47 am-6:46 pm

2 stops7h 59m

$638
Cheapest one-way

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Mon 9/21

7:00 am-10:30 am

3 stops27h 30m

$245

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 August.
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.

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 $451, Alaska Airlines can have you in Ontario from Bellingham in 4h 31m. 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.

See more FAQs

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