HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bellingham

$88+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BLI
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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”

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 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amONT - BLI
1 stop7h 42mMultiple Airlines
Sat 1/33:45 pmBLI - ONT
1 stop7h 36mMultiple Airlines
Deal found 12/15$366
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/254:36 pmONT - BLI
1 stop7h 40mAlaska Airlines
Thu 1/15:20 amBLI - ONT
1 stop4h 30mAlaska Airlines
Deal found 12/16$373
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/254:36 pmONT - BLI
1 stop7h 40mAlaska Airlines
Fri 1/25:20 amBLI - ONT
1 stop4h 30mAlaska Airlines
Deal found 12/16$442
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/267:19 pmONT - BLI
1 stop4h 57mAlaska Airlines
Thu 1/15:20 amBLI - ONT
1 stop4h 30mAlaska Airlines
Deal found 12/16$458
This Trip.com deal was found by Cheapflights users on 12/15. 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.
Sat 12/206:00 amONT - BLI
1 stop15h 44mMultiple Airlines
Wed 12/248:00 amBLI - ONT
1 stop9h 15mMultiple Airlines
Deal found 12/15$526
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/267:19 pmONT - BLI
1 stop4h 57mAlaska Airlines
Fri 1/28:05 amBLI - ONT
1 stop7h 37mAlaska Airlines
Deal found 12/16$527
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/254:36 pmONT - BLI
1 stop5h 46mAlaska Airlines
Sat 1/35:20 amBLI - ONT
1 stop4h 40mAlaska Airlines
Deal found 12/16$596
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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.
Mon 12/157:33 pmONT - BLI
1 stop4h 33mAlaska Airlines
Sun 12/2112:56 pmBLI - ONT
1 stop5h 29mAlaska Airlines
Deal found 12/14$601

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$265
(Alaska Airlines)

One-way from

$88
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$587
Provider with most accurate pricing for Ontario-Bellingham flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Bellingham flights.
Search Deals
From Ontario to Bellingham
Search Deals
One-way flight from Ontario to Bellingham
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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

Wed 1/14

4:03 pm-12:06 am

1 stop8h 03m

Bellingham

Wed 1/21

1:03 pm-3:08 pm

1 stop26h 05m

$265

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Thu 3/5

6:14 am-11:13 am

1 stop4h 59m

Bellingham

Mon 3/9

11:53 am-11:32 pm

1 stop11h 39m

$266

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Fri 3/6

6:14 am-11:13 am

1 stop4h 59m

Bellingham

Mon 3/9

11:53 am-11:32 pm

1 stop11h 39m

$266

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Sat 3/7

6:14 am-11:13 am

1 stop4h 59m

Bellingham

Sat 3/14

11:53 am-11:32 pm

1 stop11h 39m

$281

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Fri 6/5

4:45 pm-10:11 pm

1 stop5h 26m

Bellingham

Mon 6/8

12:59 pm-6:25 pm

1 stop5h 26m

$298

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Thu 6/4

4:45 pm-12:05 am

1 stop7h 20m

Bellingham

Mon 6/8

6:25 pm-10:46 pm

1 stop4h 21m

$298

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Fri 4/24

6:00 am-12:14 pm

1 stop6h 14m

Bellingham

Mon 4/27

6:25 pm-10:38 pm

1 stop4h 13m

$298

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Fri 2/20

6:14 am-11:13 am

1 stop4h 59m

Bellingham

Sun 2/22

5:15 am-11:32 pm

1 stop18h 17m

$320

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Fri 2/13

6:14 am-3:39 pm

1 stop9h 25m

Bellingham

Mon 2/16

4:19 pm-11:32 pm

1 stop7h 13m

$331

OntarioBellingham

ONT - BLI

ONTBLI

Ontario

Wed 1/21

4:03 pm-9:20 pm

1 stop5h 17m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 19 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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Bellingham flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December is currently the most expensive (average of $196). 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 December 18, 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.

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 December 18, 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
11,477 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,477 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 8h 03m. 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 ($291), offers the cheapest pricing from Ontario to Bellingham. Alaska Airlines is currently priced 14% 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 December is currently the most expensive (average of $196). 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

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 Ontario to Bellingham

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

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$291Average$465FlexibilityNo cancel feeOn-time75%

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.