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$104+ Cheap flights from Ontario to Bellingham (ONT - BLI)

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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BLI
nov. 22 — nov. 291
sáb. 11/22
sáb. 11/29
1 adult, Economy
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Find cheap flights from Ontario to Bellingham 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”

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Cheap flight deals from Ontario to Bellingham

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Bellingham (BLI). 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 octubre 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$290
(Alaska Airlines)

One-way from

$104
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$486
Provider with most accurate pricing for Ontario-Bellingham flight deals.
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Provider most trusted by Cheapflights users for Ontario-Bellingham flights.
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From Ontario to Bellingham
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One-way flight from Ontario to Bellingham
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Highest demand for flights based on searches. 29% potential increase in price ($152 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Ontario to Bellingham

Cheapest flights from Ontario to Bellingham
Explore the most affordable flight options available from Ontario to Bellingham. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 23, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
sáb. 11/156:00 amONT - BLI
1 stop6h 11mAlaska Airlines
jue. 11/204:04 pmBLI - ONT
1 stop7h 28mAlaska Airlines
Deal found 10/21$290
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
mié. 11/58:45 amONT - BLI
2 stops29h 55mMultiple Airlines
dom. 11/93:30 pmBLI - ONT
1 stop21h 21mMultiple Airlines
Deal found 10/21$307
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
vie. 11/216:25 amONT - BLI
1 stop12h 50mMultiple Airlines
mar. 11/253:11 pmBLI - ONT
1 stop5h 55mMultiple Airlines
Deal found 10/21$338
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
mié. 11/511:59 amONT - BLI
1 stop9h 21mAlaska Airlines
dom. 11/95:15 amBLI - ONT
1 stop5h 50mAlaska Airlines
Deal found 10/21$346
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
sáb. 12/204:36 pmONT - BLI
1 stop5h 46mAlaska Airlines
sáb. 3/283:30 pmBLI - ONT
1 stop7h 08mAlaska Airlines
Deal found 10/22$361
This KAYAK deal was found by Cheapflights users on 10/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/116:00 amONT - BLI
1 stop6h 11mAlaska Airlines
jue. 11/134:04 pmBLI - ONT
1 stop7h 28mAlaska Airlines
Deal found 10/23$371
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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.
mar. 11/116:00 amONT - BLI
1 stop6h 11mAlaska Airlines
jue. 11/204:04 pmBLI - ONT
1 stop7h 28mAlaska Airlines
Deal found 10/23$375
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
vie. 10/316:00 amONT - BLI
1 stop6h 11mAlaska Airlines
mar. 11/49:25 amBLI - ONT
1 stop5h 52mAlaska Airlines
Deal found 10/22$376
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
lun. 11/36:00 amONT - BLI
1 stop6h 11mAlaska Airlines
mié. 11/54:04 pmBLI - ONT
1 stop4h 49mAlaska Airlines
Deal found 10/22$416
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
jue. 10/236:54 pmONT - BLI
1 stop14h 03mMultiple Airlines
lun. 10/2712:54 pmBLI - ONT
2 stops34h 56mMultiple Airlines
Deal found 10/21$425

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Bellingham 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 octubre 23, 2025.
Use the filters below to find and compare flights from Ontario to Bellingham that are best for you.

Fly from

Ontario

Fly to

Bellingham

Route

Depart

Return

Price

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

sáb. 11/15

6:00 am-12:11 pm

1 stop6h 11m

Bellingham

jue. 11/20

4:04 pm-11:32 pm

1 stop7h 28m

$290

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

mié. 11/5

8:45 am-2:40 pm

2 stops29h 55m

Bellingham

dom. 11/9

3:30 pm-12:51 pm

1 stop21h 21m

$307

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

vie. 11/21

6:25 am-7:15 pm

1 stop12h 50m

Bellingham

mar. 11/25

3:11 pm-9:06 pm

1 stop5h 55m

$338

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

mié. 11/5

11:59 am-9:20 pm

1 stop9h 21m

Bellingham

dom. 11/9

5:15 am-11:05 am

1 stop5h 50m

$346

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

sáb. 12/20

4:36 pm-10:22 pm

1 stop5h 46m

Bellingham

sáb. 3/28

3:30 pm-10:38 pm

1 stop7h 08m

$361

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

mar. 11/11

6:00 am-12:11 pm

1 stop6h 11m

Bellingham

jue. 11/13

4:04 pm-11:32 pm

1 stop7h 28m

$371

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

mar. 11/11

6:00 am-12:11 pm

1 stop6h 11m

Bellingham

jue. 11/20

4:04 pm-11:32 pm

1 stop7h 28m

$375

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

vie. 10/31

4:11 pm-9:20 pm

1 stop5h 09m

Bellingham

mar. 11/4

4:04 pm-8:53 pm

1 stop4h 49m

$376

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

lun. 11/3

6:00 am-12:11 pm

1 stop6h 11m

Bellingham

mié. 11/5

4:04 pm-8:53 pm

1 stop4h 49m

$416

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

mié. 11/19

8:00 am-6:15 pm

1 stop10h 15m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 18 results
1
2

Compare providers for flights from Ontario to Bellingham

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 Ontario to Bellingham in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Ontario-Bellingham flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Bellingham flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Bellingham flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Bellingham 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 Ontario-Bellingham 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 Ontario to Bellingham

Have a flexible travel schedule? Discover the best time to fly to Bellingham from Ontario 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 Ontario to Bellingham

What is the cheapest month to book a flight from Ontario to Bellingham?

Currently, April is the cheapest month in which you can book a flight from Ontario to Bellingham (average of $48). Flying from Ontario to Bellingham in July is currently the most expensive (average of $132). 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 ONT to BLI?

Find hourly flight availability from Ontario to Bellingham. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 23, 2025.

It’s optimal to fly from Ontario to Bellingham in the evening. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Ontario to Bellingham?

Reviews of airlines servicing Bellingham

Get insights into the airlines that provide service to Bellingham. 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 Bellingham. Reviews last updated octubre 23, 2025.
Read through reviews of airlines operating flights from Ontario to Bellingham, 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
11,161 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,161 reviews
Alaska Airlines
8.0
Very good
11,161 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Ontario to Bellingham. 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 Ontario to Bellingham?

    There are many flights that can get you from Ontario to Bellingham in 6h 11m. Fly via Alaska Airlines to get the fastest option. Airlines will cover a distance of 1049 mi.

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

    According to our current data, Alaska Airlines ($279), offers the cheapest pricing from Ontario to Bellingham. Alaska Airlines is currently priced 23% below the average price you’ll pay for this route.

  • Can I find deals for flights from Ontario to Bellingham that include hotel bookings?

    Yes. In addition to deals on Ontario to Bellingham flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Bellingham?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Bellingham.

  • Can I find deals for business class flights from Ontario to Bellingham?

    Yes. Cheapflights offers flight deals from Ontario to Bellingham 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 Ontario to Bellingham?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Bellingham (average of $48). Flying from Ontario to Bellingham in July is currently the most expensive (average of $132). 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

Traveling to a place near Bellingham?

Book flights to Bellingham if you plan to visit one of these locations
Mount Vernon
Burlington
Ferndale
Blaine

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Top airline flying from Ontario to Bellingham

Discover the top airline that operate flights from Ontario to Bellingham. 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 octubre 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$279Average$461FlexibilityNo cancel feeOn-time75%

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