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BLI - ONT

$208 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
$392
Typical prices: $348-$612
Alaska Airlines
Mon 1/8Mon 1/15
BLI - ONT • 1 stop
Cheapest one-way
$208
Typical prices: $166-$298
Alaska Airlines
Sat 1/20
BLI - ONT • 1 stop
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We hope you love your trip to Ontario!

Cheap Flights from Bellingham to Ontario (BLI-ONT)

 

Cheap flights from Bellingham to Ontario with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Fri, Jan 8 - Fri, Jan 15
Alaska Airlines Logo
1:59 pm - 10:41 pmBLI  Bellingham-ONT Ontario
8h 42m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:16 pm - 11:50 pmONT  Ontario-BLI Bellingham
7h 34m1 stop Seattle/Tacoma Intl
$392Alaska Airlines
Tue, Nov 10 - Tue, Nov 17
Alaska Airlines Logo
7:29 pm - 6:17 pmBLI  Bellingham-ONT Ontario
22h 48m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 11:45 pmONT  Ontario-BLI Bellingham
17h 45m1 stop Seattle/Tacoma Intl
$393Alaska Airlines
Wed, Feb 10 - Mon, Feb 15
Alaska Airlines Logo
12:32 pm - 8:02 pmBLI  Bellingham-ONT Ontario
7h 30m1 stop Portland
Alaska Airlines Logo
6:10 pm - 10:51 pmONT  Ontario-BLI Bellingham
4h 41m1 stop Portland
$406Alaska Airlines
Tue, Nov 10 - Tue, Nov 17
Alaska Airlines Logo
7:29 pm - 3:26 pmBLI  Bellingham-ONT Ontario
19h 57m2 stops Seattle/Tacoma Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
6:00 am - 6:49 pmONT  Ontario-BLI Bellingham
12h 49m1 stop Seattle/Tacoma Intl
$408Alaska Airlines
Wed, Feb 10 - Mon, Feb 15
Alaska Airlines Logo
12:32 pm - 8:02 pmBLI  Bellingham-ONT Ontario
7h 30m1 stop Portland
Alaska Airlines Logo
6:10 pm - 10:51 pmONT  Ontario-BLI Bellingham
4h 41m1 stop Portland
$440Alaska Airlines
Wed, Nov 18 - Mon, Nov 23
Alaska Airlines Logo
7:29 pm - 11:13 amBLI  Bellingham-ONT Ontario
15h 44m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
8:59 pm - 11:50 pmONT  Ontario-BLI Bellingham
26h 51m1 stop Seattle/Tacoma Intl
$444Alaska Airlines
Fri, Dec 4 - Mon, Dec 7
Alaska Airlines Logo
7:31 pm - 11:13 amBLI  Bellingham-ONT Ontario
15h 42m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:01 pm - 11:38 pmONT  Ontario-BLI Bellingham
6h 37m1 stop Seattle/Tacoma Intl
$444Alaska Airlines
Fri, Oct 30 - Mon, Nov 2
Multiple Airlines Logo
6:00 am - 4:21 pmBLI  Bellingham-ONT Ontario
10h 21m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
2:23 pm - 11:34 pmONT  Ontario-BLI Bellingham
9h 11m1 stop Las Vegas Harry Reid Intl
$450Multiple Airlines
Tue, Nov 10 - Tue, Nov 17
Alaska Airlines Logo
7:29 pm - 3:26 pmBLI  Bellingham-ONT Ontario
19h 57m2 stops Seattle/Tacoma Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
4:06 pm - 1:18 pmONT  Ontario-BLI Bellingham
21h 12m2 stops Boise Air Term. Gowen Fld Seattle/Tacoma Intl
$453Alaska Airlines
Wed, Feb 10 - Mon, Feb 15
Alaska Airlines Logo
12:32 pm - 8:02 pmBLI  Bellingham-ONT Ontario
7h 30m1 stop Portland
Alaska Airlines Logo
10:03 am - 10:51 pmONT  Ontario-BLI Bellingham
12h 48m1 stop Portland
$456Alaska Airlines

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 with more confidence.

How much is a round-trip flight from Bellingham to Ontario?

Round-trip flights from Bellingham to Ontario typically range from $348 to $612. The lowest price found in the past 5 days was $392, on Alaska Airlines.

Find deals

Key details for Bellingham to Ontario flights

Cheapest flight

$208
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

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

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

  • 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 $392 to $1,813. 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 $300, which is 54% 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

  • 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).

  • 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.

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

    Yes. Flexible dates can save you up to 70% on flights from Bellingham to Ontario. Monday is the cheapest departure day at $347 round-trip on average, while Wednesday is the most expensive at $1,148, a difference of $801.

    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.

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

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario