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$169+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — ONT
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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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 octubre 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/27. 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.
jue. 12/44:21 pmBLI - ONT
1 stop7h 08mAlaska Airlines
sáb. 12/61:26 pmONT - BLI
2 stops10h 40mAlaska Airlines
Deal found 10/27$310
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
jue. 12/44:21 pmBLI - ONT
1 stop7h 08mAlaska Airlines
dom. 12/76:00 amONT - BLI
1 stop9h 41mAlaska Airlines
Deal found 10/28$311
This Trip.com deal was found by Cheapflights users on 10/27. 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.
lun. 11/108:00 amBLI - ONT
1 stop13h 57mMultiple Airlines
vie. 11/216:25 amONT - BLI
1 stop12h 50mMultiple Airlines
Deal found 10/27$336
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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. 11/34:04 pmBLI - ONT
1 stop7h 28mAlaska Airlines
lun. 11/106:00 amONT - BLI
1 stop6h 11mAlaska Airlines
Deal found 10/27$404
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
jue. 11/271:16 pmBLI - ONT
1 stop20h 39mAlaska Airlines
dom. 12/77:10 amONT - BLI
2 stops8h 31mAlaska Airlines
Deal found 10/28$408
This Trip.com deal was found by Cheapflights users on 10/28. 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.
vie. 11/2810:00 amBLI - ONT
1 stop11h 06mMultiple Airlines
mar. 12/26:00 amONT - BLI
1 stop6h 24mMultiple Airlines
Deal found 10/28$409
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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. 11/195:15 amBLI - ONT
1 stop10h 02mAlaska Airlines
jue. 11/204:11 pmONT - BLI
1 stop7h 55mAlaska Airlines
Deal found 10/27$413
This Kiwi.com deal was found by Cheapflights users on 10/28. 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. 11/266:00 amBLI - ONT
1 stop15h 06mMultiple Airlines
dom. 11/305:06 pmONT - BLI
1 stop22h 02mMultiple Airlines
Deal found 10/28$434
This Trip.com deal was found by Cheapflights users on 10/28. 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.
mié. 10/294:04 pmBLI - ONT
1 stop4h 49mHawaiian Airlines
jue. 11/66:11 pmONT - BLI
1 stop5h 55mHawaiian Airlines
Deal found 10/28$452
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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.
jue. 10/304:04 pmBLI - ONT
1 stop7h 28mAlaska Airlines
dom. 11/25:00 amONT - BLI
1 stop6h 11mAlaska Airlines
Deal found 10/27$456
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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. 12/245:20 amBLI - ONT
1 stop18h 54mAlaska Airlines
dom. 12/286:00 amONT - BLI
1 stop18h 16mAlaska Airlines
Deal found 10/27$457

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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$281
(KAYAK)

One-way from

$169
(Alaska Airlines)

Popular in

December

Cheapest in

July

Average price

$526
Provider with most accurate pricing for Bellingham-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bellingham-Ontario flights.
Search Deals
From Bellingham to Ontario
Search Deals
One-way flight from Bellingham to Ontario
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 octubre 28, 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

lun. 11/10

8:00 am-9:57 pm

1 stop13h 57m

Ontario

vie. 11/21

6:25 am-7:15 pm

1 stop12h 50m

$336

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

lun. 11/3

4:04 pm-11:32 pm

1 stop7h 28m

Ontario

lun. 11/10

6:00 am-12:11 pm

1 stop6h 11m

$404

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

lun. 11/3

4:04 pm-8:53 pm

1 stop4h 49m

Ontario

mié. 11/12

6:00 am-12:11 pm

1 stop6h 11m

$404

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

vie. 11/28

10:00 am-9:06 pm

1 stop11h 06m

Ontario

mar. 12/2

6:00 am-12:24 pm

1 stop6h 24m

$409

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

mié. 11/19

5:15 am-3:17 pm

1 stop10h 02m

Ontario

jue. 11/20

4:11 pm-12:06 am

1 stop7h 55m

$413

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

jue. 1/8

9:15 am-5:05 pm

2 stops7h 50m

Ontario

mar. 1/13

4:03 pm-9:20 pm

1 stop5h 17m

$431

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

mié. 11/26

6:00 am-9:06 pm

1 stop15h 06m

Ontario

dom. 11/30

5:06 pm-3:08 pm

1 stop22h 02m

$434

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

sáb. 11/1

4:04 pm-8:53 pm

1 stop4h 49m

Ontario

mar. 11/4

6:00 am-12:11 pm

1 stop6h 11m

$456

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

vie. 10/31

4:04 pm-8:53 pm

1 stop4h 49m

Ontario

dom. 11/2

5:00 am-11:11 am

1 stop6h 11m

$456

BellinghamOntario

BLI - ONT

BLIONT

Bellingham

mié. 12/24

5:20 am-12:14 am

1 stop18h 54m

Ontario

dom. 12/28

6:00 am-12:16 am

1 stop18h 16m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 21 results
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2
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Compare providers for flights from Bellingham to Ontario

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 Bellingham to Ontario in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*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 Bellingham-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bellingham-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Bellingham-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bellingham-Ontario 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 Bellingham-Ontario 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 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, December is the cheapest month in which you can book a flight from Bellingham to Ontario (average of $46). Flying from Bellingham to Ontario in November is currently the most expensive (average of $147). 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 octubre 28, 2025.

It’s typically best to fly out from Bellingham to Ontario in the evening. Doing so could potentially save you 44% on the flight price compared to flying in the morning, which is usually more expensive.

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

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 octubre 28, 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
11,203 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

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
11,203 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

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 $404, Alaska Airlines can have you in Ontario from Bellingham in 7h 28m. 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 34% 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, December is the cheapest month in which you can book a flight from Bellingham to Ontario (average of $46). Flying from Bellingham to Ontario in November is currently the most expensive (average of $147). 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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$297Average$484FlexibilityNo cancel feeOn-time75%

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