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$123+ 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
Jul 23 — Jul 301
Wed 7/23
Wed 7/30
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 July 18, 2025.

Round-trip from

$287
(Alaska Airlines)

One-way from

$123
(Trip.com)

Popular in

December

Cheapest in

July

Average price

$146
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. 21% potential increase in price ($126 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 July 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 July 18, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/315:20 amBLI - ONT
1 stop5h 24mAlaska Airlines
Tue 9/166:00 amONT - BLI
1 stop18h 11mAlaska Airlines
Deal found 7/14$250
This Hawaiian Airlines deal was found by Cheapflights users on 7/17. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:00 amBLI - ONT
1 stop5h 05mHawaiian Airlines
Sat 8/166:51 pmONT - BLI
1 stop5h 18mHawaiian Airlines
Deal found 7/17$293
This Trip.com deal was found by Cheapflights users on 7/15. 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.
Mon 8/259:51 amBLI - ONT
1 stop11h 01mMultiple Airlines
Fri 8/296:00 amONT - BLI
1 stop16h 50mMultiple Airlines
Deal found 7/15$342
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:00 amBLI - ONT
2 stops10h 24mAmerican Airlines
Sat 8/1612:22 pmONT - BLI
2 stops11h 47mAmerican Airlines
Deal found 7/17$498

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 July 18, 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

Sun 8/31

5:20 am-10:44 am

1 stop5h 24m

Ontario

Tue 9/16

6:00 am-12:11 am

1 stop18h 11m

$250

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 8/13

6:00 am-11:05 am

1 stop5h 05m

Ontario

Sat 8/16

6:51 pm-12:09 am

1 stop5h 18m

$293

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Mon 8/25

9:51 am-8:52 pm

1 stop11h 01m

Ontario

Fri 8/29

6:00 am-10:50 pm

1 stop16h 50m

$342

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Wed 8/13

6:00 am-4:24 pm

2 stops10h 24m

Ontario

Sat 8/16

12:22 pm-12:09 am

2 stops11h 47m

$498

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Thu 8/7

6:00 am-8:52 pm

1 stop14h 52m

$123

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sun 8/31

5:20 am-10:44 am

1 stop5h 24m

$139

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 8/19

6:00 am-11:05 am

1 stop5h 05m

$242

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 8/8

6:00 am-5:52 pm

2 stops11h 52m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

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 July 18, 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 July 18, 2025.
Read through reviews of airlines operating flights from Bellingham to Ontario, such as Alaska Airlines, Hawaiian Airlines, and American 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

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,581 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines flying from Bellingham to Ontario round-trip?

    Cheapflights users have booked flights from Bellingham to Ontario round-trip from $287. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $293, and American Airlines, from $498. Users have found that Alaska Airlines is 36% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Bellingham to Ontario one-way?

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $139. However, be on the lookout for offers from Hawaiian Airlines and American Airlines, as they are both options that can get you from Bellingham to Ontario for a low price.

  • 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 July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$297Average$508FlexibilityNo cancel feeOn-time75%

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