HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$128+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bellingham to Ontario 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 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 1, 2025.

Round-trip from

$222
(Trip.com)

One-way from

$128
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$209
From Bellingham to Ontario
Search Deals
One-way flight from Bellingham to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 1, 2025.

This Trip.com deal was found by Cheapflights users on 7/1. 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 8/49:00 pmBLI - ONT
1 stop24h 52mMultiple Airlines
Mon 8/116:00 amONT - BLI
1 stop14h 10mMultiple Airlines
Deal found 7/1$222
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 10/44:14 pmBLI - ONT
1 stop7h 45mAlaska Airlines
Sat 10/116:00 amONT - BLI
1 stop9h 34mAlaska Airlines
Deal found 6/30$282
This Hawaiian Airlines deal was found by Cheapflights users on 6/30. 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.
Fri 10/101:02 pmBLI - ONT
1 stop5h 31mHawaiian Airlines
Mon 10/136:00 amONT - BLI
1 stop6h 22mHawaiian Airlines
Deal found 6/30$291

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 1, 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

Mon 8/4

9:00 pm-9:52 pm

1 stop24h 52m

Ontario

Mon 8/11

6:00 am-8:10 pm

1 stop14h 10m

$222

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Sat 10/4

4:14 pm-11:59 pm

1 stop7h 45m

Ontario

Sat 10/11

6:00 am-3:34 pm

1 stop9h 34m

$282

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Fri 10/10

1:02 pm-6:33 pm

1 stop5h 31m

Ontario

Mon 10/13

6:00 am-12:22 pm

1 stop6h 22m

$291

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Thu 7/31

6:00 am-4:19 pm

1 stop10h 19m

$128

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Thu 9/18

3:47 pm-12:03 am

1 stop8h 16m

$165

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 8/12

8:05 am-5:52 pm

2 stops9h 47m

$249

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

Tue 7/8

6:00 am-11:05 am

1 stop5h 05m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 1, 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 1, 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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

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
2,538 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

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 $282. Another airline that can offer you cheap pricing is Hawaiian Airlines. Users have found that Alaska Airlines is 39% 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 $165. However, be on the lookout for offers from American Airlines and Hawaiian 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

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 Bellingham to Ontario

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

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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$297Average$508FlexibilityNo 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.