BLI - ONT

$206 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
$244
Typical prices: $347-$436
Multiple Airlines
Tue 11/6Wed 11/7
BLI - ONT • 1 stop
Cheapest one-way
$206
Typical prices: $181-$298
Alaska Airlines
Sat 9/22
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

Fri, Nov 6 - Sat, Nov 7
Multiple Airlines Logo
9:37 am - 4:10 pmBLI  Bellingham-ONT Ontario
6h 33m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
4:27 pm - 8:45 amONT  Ontario-BLI Bellingham
16h 18m1 stop Las Vegas Harry Reid Intl
$244Multiple Airlines
Fri, Oct 23 - Sun, Oct 25
Multiple Airlines Logo
6:00 am - 4:30 pmBLI  Bellingham-ONT Ontario
10h 30m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:35 pm - 11:34 pmONT  Ontario-BLI Bellingham
26h 59m1 stop Las Vegas Harry Reid Intl
$351Multiple Airlines
Tue, Dec 15 - Wed, Jan 6
Alaska Airlines Logo
12:46 pm - 5:15 pmBLI  Bellingham-ONT Ontario
4h 29m1 stop Portland
Alaska Airlines Logo
4:16 pm - 9:01 pmONT  Ontario-BLI Bellingham
4h 45m1 stop Seattle/Tacoma Intl
$361Alaska Airlines
Mon, Dec 14 - Tue, Jan 5
Alaska Airlines Logo
12:46 pm - 5:15 pmBLI  Bellingham-ONT Ontario
4h 29m1 stop Portland
Alaska Airlines Logo
4:16 pm - 11:50 pmONT  Ontario-BLI Bellingham
7h 34m1 stop Seattle/Tacoma Intl
$386Alaska Airlines
Fri, Sep 18 - Sun, Sep 20
Multiple Airlines Logo
7:00 am - 9:09 amBLI  Bellingham-ONT Ontario
26h 09m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:24 pm - 1:11 pmONT  Ontario-BLI Bellingham
16h 47m1 stop Las Vegas Harry Reid Intl
$394Multiple Airlines
Fri, Oct 23 - Sun, Oct 25
Multiple Airlines Logo
6:00 am - 7:40 pmBLI  Bellingham-ONT Ontario
13h 40m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
8:35 pm - 11:34 pmONT  Ontario-BLI Bellingham
26h 59m1 stop Las Vegas Harry Reid Intl
$395Multiple Airlines
Thu, Oct 8 - Mon, Oct 12
Alaska Airlines Logo
7:18 pm - 11:42 pmBLI  Bellingham-ONT Ontario
4h 24m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:30 pm - 10:35 pmONT  Ontario-BLI Bellingham
5h 05m1 stop Portland
$404Alaska Airlines
Thu, Oct 8 - Sun, Oct 11
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
$411Alaska Airlines
Tue, Dec 15 - Wed, Jan 6
Alaska Airlines Logo
8:00 am - 5:42 pmBLI  Bellingham-ONT Ontario
9h 42m2 stops Portland Boise Air Term. Gowen Fld
Alaska Airlines Logo
4:16 pm - 9:01 pmONT  Ontario-BLI Bellingham
4h 45m1 stop Seattle/Tacoma Intl
$412Alaska Airlines
Mon, Dec 14 - Tue, Jan 5
Alaska Airlines Logo
12:56 pm - 5:42 pmBLI  Bellingham-ONT Ontario
28h 46m2 stops Seattle/Tacoma Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
7:10 am - 11:52 amONT  Ontario-BLI Bellingham
4h 42m1 stop Portland
$417Alaska 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 ($361) 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

$206
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, Ontario Mills 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.

  • 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 $284, which is 10% 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

  • How much should I expect to pay for a Bellingham to Ontario flight?

    Round-trip flights from Bellingham to Ontario range from $347 to $436, with an average of $379 over the past 12 months. Anything below $347 counts as a good deal.

Your guide to booking Bellingham to Ontario flights

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

Everything you need to know for your flight from Bellingham to Ontario

Information on your arrival and departure airports

Bellingham (BLI)
Ontario (ONT)