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$158+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$286
(Kiwi.com)

One-way from

$158
(Alaska Airlines)

Popular in

December

Cheapest in

July

Average price

$336
From Bellingham to Ontario
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One-way flight from Bellingham to Ontario
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Highest demand for flights based on searches. 23% potential increase in price ($137 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 9/249:00 amBLI - ONT
1 stop26h 38mMultiple Airlines
Sat 9/271:37 pmONT - BLI
2 stops24h 12mMultiple Airlines
Deal found 9/11$286
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 12/314:06 pmBLI - ONT
1 stop8h 08mAlaska Airlines
Wed 1/711:30 amONT - BLI
1 stop10h 35mAlaska Airlines
Deal found 9/10$299
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 10/284:04 pmBLI - ONT
1 stop4h 49mAlaska Airlines
Sun 11/25:00 amONT - BLI
1 stop6h 11mAlaska Airlines
Deal found 9/9$306
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:12 pmBLI - ONT
1 stop6h 47mHawaiian Airlines
Thu 11/276:00 amONT - BLI
1 stop10h 32mHawaiian Airlines
Deal found 9/10$314
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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 10/84:14 pmBLI - ONT
1 stop7h 49mAlaska Airlines
Wed 10/156:00 amONT - BLI
1 stop6h 22mAlaska Airlines
Deal found 9/8$320
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:00 amBLI - ONT
1 stop16h 38mMultiple Airlines
Sun 9/287:30 pmONT - BLI
1 stop14h 47mMultiple Airlines
Deal found 9/10$321
This Trip.com deal was found by Cheapflights users on 9/9. 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.
Tue 11/114:04 pmBLI - ONT
1 stop4h 49mHawaiian Airlines
Sun 11/166:00 amONT - BLI
1 stop6h 11mHawaiian Airlines
Deal found 9/9$324
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 11/1412:51 pmBLI - ONT
1 stop22h 14mAlaska Airlines
Sun 11/166:00 amONT - BLI
1 stop6h 11mAlaska Airlines
Deal found 9/10$330
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 11/134:04 pmBLI - ONT
1 stop7h 28mAlaska Airlines
Sun 11/166:00 amONT - BLI
1 stop6h 11mAlaska Airlines
Deal found 9/10$340
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 11/24:04 pmBLI - ONT
1 stop7h 28mAlaska Airlines
Fri 11/711:59 amONT - BLI
1 stop24h 12mAlaska Airlines
Deal found 9/10$343

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 September 11, 2025.
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

Wed 9/24

9:00 am-11:38 am

1 stop26h 38m

Ontario

Sat 9/27

1:37 pm-1:49 pm

2 stops24h 12m

$286

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 1/11

3:30 pm-10:37 pm

1 stop7h 07m

Ontario

Sun 1/18

6:00 am-12:18 pm

1 stop6h 18m

$296

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Mon 1/19

3:30 pm-10:37 pm

1 stop7h 07m

Ontario

Sun 1/25

6:00 am-12:18 pm

1 stop6h 18m

$298

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 2/27

3:30 pm-10:37 pm

1 stop7h 07m

Ontario

Mon 3/2

6:55 pm-12:01 am

1 stop5h 06m

$298

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 12/31

4:06 pm-12:14 am

1 stop8h 08m

Ontario

Wed 1/7

11:30 am-10:05 pm

1 stop10h 35m

$299

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 10/28

4:04 pm-8:53 pm

1 stop4h 49m

Ontario

Sun 11/2

5:00 am-11:11 am

1 stop6h 11m

$306

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 10/8

4:14 pm-12:03 am

1 stop7h 49m

Ontario

Wed 10/15

6:00 am-12:22 pm

1 stop6h 22m

$320

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 1/11

12:58 pm-6:17 pm

1 stop5h 19m

Ontario

Thu 1/15

4:05 pm-10:05 pm

1 stop6h 00m

$327

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 3/1

12:58 pm-6:17 pm

1 stop5h 19m

Ontario

Thu 3/5

6:00 am-12:18 pm

1 stop6h 18m

$337

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Thu 11/13

4:04 pm-11:32 pm

1 stop7h 28m

Ontario

Sun 11/16

6:00 am-12:11 pm

1 stop6h 11m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

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, August is the cheapest month in which you can book a flight from Bellingham to Ontario (average of $246). Flying from Bellingham to Ontario in March is currently the most expensive (average of $328). 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.

What is the cheapest time of day to fly from BLI to ONT?

Find hourly flight availability from Bellingham to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from Bellingham to Ontario in the afternoon. Doing so could potentially save you 14% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Bellingham to Ontario, such as Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 $296, Alaska Airlines can have you in Ontario from Bellingham in 7h 07m. The distance between Bellingham and Ontario is about 1049 mi.

  • What is the cheapest airline to fly from Bellingham to Ontario round-trip?

    Cheapflights users have booked flights from Bellingham to Ontario round-trip from $297. Users have found that Alaska Airlines is 33% cheaper than the other options available to this destination.

  • 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, August is the cheapest month in which you can book a flight from Bellingham to Ontario (average of $246). Flying from Bellingham to Ontario in March is currently the most expensive (average of $328). 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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Top airline flying from Bellingham to Ontario

Discover the top airline that operate flights from Bellingham to Ontario. 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$297Average$508FlexibilityNo cancel feeOn-time75%

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