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
$300
Typical prices: $347-$436
Multiple Airlines
Thu 12/13Sun 12/16
BLI - ONT • 1 stop
Cheapest one-way
$193
Typical prices: $181-$298
Multiple Airlines
Tue 11/13
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

Sun, Dec 13 - Wed, Dec 16
Multiple Airlines Logo
9:51 am - 11:51 amBLI  Bellingham-ONT Ontario
26h 00m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
2:41 pm - 3:51 pmONT  Ontario-BLI Bellingham
25h 10m1 stop Las Vegas Harry Reid Intl
$300Multiple Airlines
Thu, Dec 10 - Tue, Dec 15
Multiple Airlines Logo
9:51 am - 6:31 pmBLI  Bellingham-ONT Ontario
8h 40m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:26 pm - 3:51 pmONT  Ontario-BLI Bellingham
44h 25m2 stops San Francisco Las Vegas Harry Reid Intl
$352Multiple Airlines
Thu, Dec 10 - Wed, Dec 16
Multiple Airlines Logo
9:51 am - 11:23 pmBLI  Bellingham-ONT Ontario
13h 32m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
2:41 pm - 3:51 pmONT  Ontario-BLI Bellingham
25h 10m1 stop Las Vegas Harry Reid Intl
$367Multiple Airlines
Thu, Dec 10 - Sat, Dec 12
Multiple Airlines Logo
9:51 am - 11:23 pmBLI  Bellingham-ONT Ontario
13h 32m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
2:41 pm - 9:01 amONT  Ontario-BLI Bellingham
18h 20m1 stop Las Vegas Harry Reid Intl
$373Multiple Airlines
Thu, Dec 10 - Wed, Dec 16
Multiple Airlines Logo
9:51 am - 6:31 pmBLI  Bellingham-ONT Ontario
8h 40m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
2:41 pm - 3:51 pmONT  Ontario-BLI Bellingham
25h 10m1 stop Las Vegas Harry Reid Intl
$375Multiple Airlines
Wed, Mar 10 - Tue, Mar 23
Alaska Airlines Logo
12:46 pm - 5:15 pmBLI  Bellingham-ONT Ontario
4h 29m1 stop Portland
Alaska Airlines Logo
12:00 pm - 5:31 pmONT  Ontario-BLI Bellingham
5h 31m1 stop Seattle/Tacoma Intl
$381Alaska Airlines
Thu, Dec 10 - Sun, Dec 13
Multiple Airlines Logo
9:51 am - 11:23 pmBLI  Bellingham-ONT Ontario
13h 32m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
8:29 am - 10:21 amONT  Ontario-BLI Bellingham
25h 52m1 stop Las Vegas Harry Reid Intl
$392Multiple Airlines
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
$396Alaska Airlines
Tue, Jan 26 - Thu, Feb 4
Alaska Airlines Logo
12:32 pm - 8:02 pmBLI  Bellingham-ONT Ontario
7h 30m1 stop Portland
Alaska Airlines Logo
7:00 am - 1:19 pmONT  Ontario-BLI Bellingham
6h 19m1 stop Seattle/Tacoma Intl
$399Alaska Airlines
Thu, Dec 10 - Sun, Dec 13
Multiple Airlines Logo
9:51 am - 6:31 pmBLI  Bellingham-ONT Ontario
8h 40m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:29 am - 10:21 amONT  Ontario-BLI Bellingham
25h 52m1 stop Las Vegas Harry Reid Intl
$400Multiple 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.

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

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

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Key details for Bellingham to Ontario flights

Cheapest flight

$193
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 $300 to $1,764. That means the highest observed fare was about 6x 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 in line with typical prices for this route. Average one-way fares are about $256.

  • 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