BLI - ONT

$236 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
$394
Typical prices: $347-$436
Alaska Airlines
Wed 11/7Thu 11/15
BLI - ONT • 1 stop
Cheapest one-way
$236
Typical prices: $181-$298
Alaska Airlines
Mon 10/22
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

Sat, Nov 7 - Sun, Nov 15
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
$394Alaska 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
Wed, Dec 30 - Fri, Jan 8
Alaska Airlines Logo
7:20 pm - 11:56 pmBLI  Bellingham-ONT Ontario
4h 36m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
10:56 am - 10:36 pmONT  Ontario-BLI Bellingham
11h 40m1 stop Portland
$416Alaska Airlines
Sun, Dec 6 - Mon, Dec 21
Alaska Airlines Logo
5:14 am - 11:13 amBLI  Bellingham-ONT Ontario
5h 59m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:01 pm - 11:49 pmONT  Ontario-BLI Bellingham
7h 48m1 stop Seattle/Tacoma Intl
$429Alaska Airlines
Fri, Oct 23 - Mon, Oct 26
Alaska Airlines Logo
7:18 pm - 11:42 pmBLI  Bellingham-ONT Ontario
4h 24m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:56 pm - 11:53 pmONT  Ontario-BLI Bellingham
4h 57m1 stop Seattle/Tacoma Intl
$431Alaska Airlines
Fri, Nov 6 - Sat, Nov 14
Alaska Airlines Logo
7:29 pm - 11:18 amBLI  Bellingham-ONT Ontario
15h 49m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:09 pm - 11:45 pmONT  Ontario-BLI Bellingham
7h 36m1 stop Seattle/Tacoma Intl
$438Alaska Airlines
Wed, Nov 18 - Thu, Nov 26
Alaska Airlines Logo
1:58 pm - 6:17 pmBLI  Bellingham-ONT Ontario
4h 19m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 4:47 pmONT  Ontario-BLI Bellingham
10h 47m1 stop Seattle/Tacoma Intl
$447Alaska Airlines
Wed, Feb 10 - Mon, Feb 15
Alaska Airlines Logo
8:28 am - 5:22 pmBLI  Bellingham-ONT Ontario
8h 54m2 stops Portland Boise Air Term. Gowen Fld
Alaska Airlines Logo
10:03 am - 10:51 pmONT  Ontario-BLI Bellingham
12h 48m1 stop Portland
$452Alaska Airlines
Fri, Oct 23 - Mon, Oct 26
Alaska Airlines Logo
7:18 pm - 11:42 pmBLI  Bellingham-ONT Ontario
4h 24m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:13 pm - 6:38 pmONT  Ontario-BLI Bellingham
4h 25m1 stop Seattle/Tacoma Intl
$455Alaska Airlines
Fri, Oct 23 - Mon, Oct 26
Alaska Airlines Logo
7:18 pm - 1:16 pmBLI  Bellingham-ONT Ontario
17h 58m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:56 pm - 11:53 pmONT  Ontario-BLI Bellingham
4h 57m1 stop Seattle/Tacoma Intl
$457Alaska 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 with more confidence.

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

Round-trip flights from Bellingham to Ontario typically range from $347 to $436. The lowest price found in the past 5 days was $394, on Alaska Airlines.

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Key details for Bellingham to Ontario flights

Cheapest flight

$236
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 $394 to $1,719. That means the highest observed fare was about 4x 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 $309, which is 19% 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 44% 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 $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.

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