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$182+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 17, 2025.

Round-trip from

$223
(Kiwi.com)

One-way from

$182
(Hawaiian 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. 22% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($24 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 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/193:32 pmBLI - ONT
1 stop16h 15mMultiple Airlines
Thu 10/307:44 pmONT - BLI
1 stop13h 13mMultiple Airlines
Deal found 9/16$223
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/193:32 pmBLI - ONT
1 stop16h 15mMultiple Airlines
Fri 10/245:15 pmONT - BLI
1 stop5h 56mMultiple Airlines
Deal found 9/16$235
This Trip.com deal was found by Cheapflights users on 9/15. 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 11/1412:51 pmBLI - ONT
1 stop9h 07mMultiple Airlines
Sun 11/168:02 amONT - BLI
1 stop7h 22mMultiple Airlines
Deal found 9/15$240
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/233:32 pmBLI - ONT
1 stop6h 23mMultiple Airlines
Thu 10/307:44 pmONT - BLI
1 stop13h 13mMultiple Airlines
Deal found 9/16$260
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/193:32 pmBLI - ONT
1 stop16h 15mMultiple Airlines
Sun 10/2610:47 pmONT - BLI
1 stop11h 30mMultiple Airlines
Deal found 9/16$264
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/193:32 pmBLI - ONT
1 stop16h 15mMultiple Airlines
Wed 10/298:00 amONT - BLI
2 stops29h 51mMultiple Airlines
Deal found 9/16$270
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/233:32 pmBLI - ONT
1 stop6h 23mMultiple Airlines
Fri 10/245:15 pmONT - BLI
1 stop5h 56mMultiple Airlines
Deal found 9/16$272
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/221:02 pmBLI - ONT
1 stop5h 31mAlaska Airlines
Wed 10/296:00 amONT - BLI
1 stop6h 11mAlaska Airlines
Deal found 9/16$276
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/19:00 amBLI - ONT
1 stop12h 56mMultiple Airlines
Sat 10/41:37 pmONT - BLI
2 stops24h 14mMultiple Airlines
Deal found 9/14$278
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/214:14 pmBLI - ONT
1 stop26h 19mAlaska Airlines
Tue 10/286:00 amONT - BLI
1 stop6h 11mAlaska Airlines
Deal found 9/16$279
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/221:02 pmBLI - ONT
1 stop5h 31mAlaska Airlines
Mon 10/276:11 pmONT - BLI
1 stop18h 00mAlaska Airlines
Deal found 9/16$289

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 17, 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

Thu 10/23

3:32 pm-9:55 pm

1 stop6h 23m

Ontario

Thu 10/30

7:44 pm-8:57 am

1 stop13h 13m

$260

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 10/22

1:02 pm-6:33 pm

1 stop5h 31m

Ontario

Sat 10/25

6:00 am-12:22 pm

1 stop6h 22m

$276

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 10/22

1:02 pm-6:33 pm

1 stop5h 31m

Ontario

Wed 10/29

6:00 am-12:11 pm

1 stop6h 11m

$276

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 10/22

1:02 pm-6:33 pm

1 stop5h 31m

Ontario

Tue 10/28

6:00 am-12:11 pm

1 stop6h 11m

$276

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 10/21

4:14 pm-12:03 am

1 stop7h 49m

Ontario

Wed 10/29

6:00 am-12:11 pm

1 stop6h 11m

$279

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Mon 10/20

12:54 pm-10:05 pm

1 stop9h 11m

Ontario

Thu 10/30

10:40 pm-11:11 pm

2 stops24h 31m

$282

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 10/22

1:02 pm-6:33 pm

1 stop5h 31m

Ontario

Mon 10/27

6:11 pm-12:11 pm

1 stop18h 00m

$289

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 10/22

1:02 pm-6:33 pm

1 stop5h 31m

Ontario

Fri 10/24

7:43 pm-3:34 pm

1 stop19h 51m

$289

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 10/21

4:14 pm-12:37 pm

1 stop20h 23m

Ontario

Mon 10/27

6:11 pm-12:11 pm

1 stop18h 00m

$292

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 10/21

4:14 pm-6:33 pm

1 stop26h 19m

Ontario

Fri 10/24

7:43 pm-3:34 pm

1 stop19h 51m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 23 results
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2
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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 $327). 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 17, 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 17, 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

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

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

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

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 $276, Alaska Airlines can have you in Ontario from Bellingham in 5h 31m. 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 $327). 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$297Average$508FlexibilityNo cancel feeOn-time75%

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