HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$141+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
May 30 — Jun 61
Sat 5/30
Sat 6/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bellingham to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/41:21 pm
BLI
-
ONT
1 stop6h 11m
Multiple Airlines
Tue 6/98:36 pm
ONT
-
BLI
2 stops36h 38m
Multiple Airlines
Deal found 4/28$229
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/258:00 am
BLI
-
ONT
1 stop24h 04m
Multiple Airlines
Wed 5/271:39 pm
ONT
-
BLI
1 stop19h 32m
Multiple Airlines
Deal found 4/27$251
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/43:00 pm
BLI
-
ONT
1 stop24h 44m
Multiple Airlines
Thu 5/711:36 am
ONT
-
BLI
1 stop9h 34m
Multiple Airlines
Deal found 4/27$319
This Trip.com deal was found by Cheapflights users on 4/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/59:54 am
BLI
-
ONT
1 stop9h 38m
Multiple Airlines
Sun 6/711:51 am
ONT
-
BLI
1 stop11h 48m
Multiple Airlines
Deal found 4/27$331
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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 5/265:53 pm
BLI
-
ONT
1 stop6h 05m
Alaska Airlines
Wed 6/37:41 pm
ONT
-
BLI
1 stop4h 26m
Alaska Airlines
Deal found 4/26$333
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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 5/285:53 pm
BLI
-
ONT
1 stop6h 05m
Alaska Airlines
Wed 6/37:41 pm
ONT
-
BLI
1 stop4h 26m
Alaska Airlines
Deal found 4/26$336
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 5/285:53 pm
BLI
-
ONT
1 stop6h 05m
Alaska Airlines
Tue 6/27:41 pm
ONT
-
BLI
1 stop4h 26m
Alaska Airlines
Deal found 4/28$339
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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 5/265:53 pm
BLI
-
ONT
1 stop6h 05m
Alaska Airlines
Fri 5/297:41 pm
ONT
-
BLI
1 stop17h 39m
Alaska Airlines
Deal found 4/26$363
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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 5/285:53 pm
BLI
-
ONT
1 stop6h 05m
Alaska Airlines
Fri 5/297:41 pm
ONT
-
BLI
1 stop17h 39m
Alaska Airlines
Deal found 4/26$366
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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 6/15:53 pm
BLI
-
ONT
1 stop6h 05m
Alaska Airlines
Tue 6/27:41 pm
ONT
-
BLI
1 stop4h 26m
Alaska Airlines
Deal found 4/26$376

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 April 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$229
(Kiwi.com)

One-way from

$141
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$508
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 ($147 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 30, 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

Wed 5/27

5:53 pm-11:58 pm

1 stop6h 05m

Ontario

Wed 6/3

7:41 pm-12:07 am

1 stop4h 26m

$333
Quickest round-trip

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sat 5/30

2:00 pm-7:02 pm

1 stop5h 02m

Ontario

Tue 6/2

7:41 pm-12:07 am

1 stop4h 26m

$333

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 5/29

5:53 pm-11:58 pm

1 stop6h 05m

Ontario

Tue 6/2

6:00 am-1:20 pm

1 stop7h 20m

$336

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Thu 5/28

5:53 pm-11:58 pm

1 stop6h 05m

Ontario

Tue 6/2

7:41 pm-12:07 am

1 stop4h 26m

$339

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 6/2

5:53 pm-11:58 pm

1 stop6h 05m

Ontario

Thu 6/4

7:41 pm-12:07 am

1 stop4h 26m

$379

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 5/27

5:53 pm-11:58 pm

1 stop6h 05m

Ontario

Mon 6/1

8:11 pm-1:20 pm

1 stop17h 09m

$406

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 5/29

5:53 pm-11:58 pm

1 stop6h 05m

Ontario

Mon 6/1

8:11 pm-1:20 pm

1 stop17h 09m

$416

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 5/31

2:00 pm-11:10 am

1 stop21h 10m

Ontario

Thu 6/4

7:41 pm-12:07 am

1 stop4h 26m

$426

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Thu 7/16

8:30 am-9:56 am

1 stop25h 26m

Ontario

Mon 7/20

5:32 pm-10:30 pm

1 stop4h 58m

$426

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sat 6/13

5:26 pm-11:11 pm

1 stop5h 45m

Ontario

Sat 6/20

5:32 pm-10:30 pm

1 stop4h 58m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 20 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 $333, Alaska Airlines can have you in Ontario from Bellingham in 6h 05m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bellingham to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Las Vegas flights
Seattle to Los Angeles flights
Seattle to San Francisco flights
Seattle to Santa Ana flights
Seattle to San Diego flights
Portland to Las Vegas flights
Seattle to Ontario flights
Seattle to San Jose flights
Portland to Los Angeles flights
Portland to San Francisco flights
Seattle to Sacramento flights
Seattle to Burbank flights
Seattle to Oakland flights
Everett to Las Vegas flights
Portland to San Diego flights
Portland to Ontario flights
Everett to Los Angeles flights
Everett to San Francisco flights
Portland to Santa Ana flights
Everett to San Diego flights
Portland to Oakland flights
Seattle to Palm Springs flights
Everett to Santa Ana flights
Seattle to Long Beach flights
Seattle to Reno flights
Portland to Palm Springs flights
Everett to San Jose flights
Portland to San Jose flights
Seattle to Fresno flights
Portland to Sacramento flights
Portland to Burbank flights
Spokane to Las Vegas flights
Seattle to Santa Barbara flights
Seattle to Santa Rosa flights
Spokane to Los Angeles flights
Seattle to San Luis Obispo flights
Portland to Reno flights
Portland to Long Beach flights
Pasco to Los Angeles flights
Spokane to San Francisco flights
Spokane to San Diego flights
Seattle to Monterey flights
Seattle to Medford flights
Bellingham to Las Vegas flights
Portland to Santa Barbara flights
Pasco to Las Vegas flights
Portland to Santa Rosa flights
Spokane to Sacramento flights
Spokane to Ontario flights
Pasco to Ontario flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights