BLI - ONT

$229 Find Cheap Flights from Bellingham to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$323
Typical prices: $347-$436
Multiple Airlines
Tue 10/9Tue 10/16
BLI - ONT • 1 stop
Cheapest one-way
$229
Typical prices: $181-$298
Alaska Airlines
Sun 10/14
BLI - ONT • 1 stop
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Flight Deals

Cheap Flights from Bellingham to Ontario (BLI-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bellingham to Ontario

Fri, Oct 9 - Fri, Oct 16
Multiple Airlines Logo
1:00 pm - 9:09 amBLI  Bellingham-ONT Ontario
20h 09m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:00 am - 11:34 pmONT  Ontario-BLI Bellingham
15h 34m1 stop Las Vegas Harry Reid Intl
$323Multiple Airlines
Tue, Feb 9 - Sat, Feb 13
Alaska Airlines Logo
6:01 pm - 10:41 pmBLI  Bellingham-ONT Ontario
4h 40m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:30 am - 12:06 pmONT  Ontario-BLI Bellingham
4h 36m1 stop Portland
$381Alaska Airlines
Mon, Oct 12 - Sat, Oct 24
Alaska Airlines Logo
7:18 pm - 11:42 pmBLI  Bellingham-ONT Ontario
4h 24m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:02 am - 1:37 pmONT  Ontario-BLI Bellingham
7h 35m1 stop Seattle/Tacoma Intl
$404Alaska Airlines
Mon, Feb 8 - Wed, Feb 17
Alaska Airlines Logo
6:01 pm - 10:41 pmBLI  Bellingham-ONT Ontario
4h 40m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
12:00 pm - 5:31 pmONT  Ontario-BLI Bellingham
5h 31m1 stop Seattle/Tacoma Intl
$406Alaska Airlines
Thu, Feb 18 - Tue, Feb 23
Alaska Airlines Logo
8:00 am - 5:15 pmBLI  Bellingham-ONT Ontario
9h 15m1 stop Portland
Alaska Airlines Logo
4:00 pm - 11:45 pmONT  Ontario-BLI Bellingham
7h 45m1 stop Seattle/Tacoma Intl
$412Alaska Airlines
Mon, Feb 22 - Thu, Feb 25
Multiple Airlines Logo
9:42 am - 5:55 pmBLI  Bellingham-ONT Ontario
8h 13m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:27 pm - 8:52 amONT  Ontario-BLI Bellingham
14h 25m1 stop Las Vegas Harry Reid Intl
$414Multiple Airlines
Thu, Nov 5 - Sun, Nov 8
Alaska Airlines Logo
1:58 pm - 6:17 pmBLI  Bellingham-ONT Ontario
4h 19m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:59 pm - 10:30 pmONT  Ontario-BLI Bellingham
4h 31m1 stop Portland
$422Alaska Airlines
Tue, Feb 9 - Wed, Feb 17
Alaska Airlines Logo
8:28 am - 5:22 pmBLI  Bellingham-ONT Ontario
8h 54m2 stops Portland Boise Air Term. Gowen Fld
Alaska Airlines Logo
6:00 am - 12:17 pmONT  Ontario-BLI Bellingham
6h 17m1 stop Seattle/Tacoma Intl
$427Alaska Airlines
Thu, Mar 11 - Sun, Mar 21
Alaska Airlines Logo
12:46 pm - 5:15 pmBLI  Bellingham-ONT Ontario
4h 29m1 stop Portland
Alaska Airlines Logo
6:00 am - 12:17 pmONT  Ontario-BLI Bellingham
6h 17m1 stop Seattle/Tacoma Intl
$431Alaska Airlines
Sat, Mar 6 - Sat, Mar 13
Alaska Airlines Logo
5:14 am - 10:39 pmBLI  Bellingham-ONT Ontario
17h 25m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:10 pm - 10:51 pmONT  Ontario-BLI Bellingham
4h 41m1 stop Portland
$437Alaska Airlines
Booking Insights

Price, demand and travel trends for Bellingham to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Bellingham to Ontario with more confidence.

What is the cheapest airline to fly from Bellingham to Ontario?

Alaska Airlines ($381) offered the cheapest round-trip ticket from Bellingham to Ontario in the last 5 days.

Find deals

Key details for Bellingham to Ontario flights

Cheapest flight

$229
Flight from Bellingham to Ontario

When to book flights from Bellingham to Ontario

Are your dates flexible? Find out the best times to travel from Bellingham to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Bellingham to Ontario flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Bellingham to Ontario?

    Flights from Bellingham to Ontario usually depart from Bellingham (BLI) and arrive at Ontario (ONT).

  • What cabin classes can I book on flights from Bellingham to Ontario?

    Only Economy Class is available on flights from Bellingham to Ontario.

  • Which airports do connecting flights from Bellingham to Ontario pass through?

    Most connecting flights from Bellingham to Ontario pass through Seattle/Tacoma Intl (SEA), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

  • Can I save money by using flexible dates for flights from Bellingham to Ontario?

    Yes. Being flexible with your travel dates can save you up to 44% on the Bellingham to Ontario route. Monday is the cheapest departure day at $347 round-trip on average, while Wednesday is the most expensive at $612, a difference of $265. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

  • Do I need a passport to fly from Bellingham to Ontario?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Bellingham to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $323 to $1,478. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Bellingham to Ontario looking right now?

    One-way fares from Bellingham to Ontario are currently higher than usual. Average one-way flight prices are about $336, which is 30% above the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:
    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

Your guide to booking Bellingham to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Bellingham to Ontario

Complete your trip to Ontario with a hotel stay or car rental

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