ONT - BIL

$261 Find Cheap Flights from Ontario to Billings - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$292
Typical prices: $341-$625
Multiple Airlines
Mon 12/3Thu 12/6
ONT - BIL • 1 stop
Cheapest one-way
$279
Typical prices: $203-$300
United Airlines
Fri 10/26
ONT - BIL • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Ontario and Billings. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 20% price drop
October
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Las Vegas Harry Reid Intl (LAS)
Cheapest • Avg $430 (round-trip)
Salt Lake City (SLC)
Shortest trip • 4h 45m (one-way)
Insights
Insights
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We hope you love your trip to Billings!

Cheap Flights from Ontario to Billings (ONT-BIL)

 

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

Thu, Dec 3 - Sun, Dec 6
Multiple Airlines Logo
2:47 pm - 4:25 pmONT  Ontario-BIL Billings Logan Intl
24h 38m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:47 pm - 11:51 amBIL  Billings Logan Intl-ONT Ontario
15h 04m1 stop Las Vegas Harry Reid Intl
$292Multiple Airlines
Fri, Dec 25 - Mon, Jan 4
Multiple Airlines Logo
10:32 pm - 2:07 pmONT  Ontario-BIL Billings Logan Intl
14h 35m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
12:00 pm - 7:07 amBIL  Billings Logan Intl-ONT Ontario
20h 07m1 stop Las Vegas Harry Reid Intl
$306Multiple Airlines
Tue, Nov 24 - Sun, Nov 29
Multiple Airlines Logo
10:40 pm - 9:21 pmONT  Ontario-BIL Billings Logan Intl
21h 41m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
10:11 pm - 7:20 amBIL  Billings Logan Intl-ONT Ontario
10h 09m1 stop Las Vegas Harry Reid Intl
$332Multiple Airlines
Wed, Dec 30 - Mon, Jan 4
Delta Logo
6:00 am - 12:19 pmONT  Ontario-BIL Billings Logan Intl
5h 19m1 stop Salt Lake City
Delta Logo
6:25 pm - 10:48 pmBIL  Billings Logan Intl-ONT Ontario
5h 23m1 stop Salt Lake City
$380Delta
Thu, Apr 1 - Tue, Apr 6
Alaska Airlines Logo
4:00 pm - 12:08 amONT  Ontario-BIL Billings Logan Intl
7h 08m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
3:44 pm - 9:25 amBIL  Billings Logan Intl-ONT Ontario
18h 41m1 stop Portland
$391Alaska Airlines
Thu, Oct 29 - Mon, Nov 2
United Airlines Logo
9:25 am - 9:14 pmONT  Ontario-BIL Billings Logan Intl
10h 49m2 stops San Francisco Denver Intl
United Airlines Logo
2:42 pm - 8:51 pmBIL  Billings Logan Intl-ONT Ontario
7h 09m1 stop Denver Intl
$396United Airlines
Thu, Oct 29 - Mon, Nov 2
United Airlines Logo
9:25 am - 10:30 pmONT  Ontario-BIL Billings Logan Intl
12h 05m2 stops San Francisco Denver Intl
United Airlines Logo
5:00 am - 12:29 pmBIL  Billings Logan Intl-ONT Ontario
8h 29m2 stops Denver Intl San Francisco
$401United Airlines
Tue, Nov 10 - Wed, Nov 11
Alaska Airlines Logo
4:09 pm - 10:43 pmONT  Ontario-BIL Billings Logan Intl
5h 34m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
11:55 am - 6:17 pmBIL  Billings Logan Intl-ONT Ontario
7h 22m1 stop Seattle/Tacoma Intl
$459Alaska Airlines
Fri, Dec 25 - Mon, Jan 4
Delta Logo
11:59 am - 10:39 pmONT  Ontario-BIL Billings Logan Intl
9h 40m2 stops Seattle/Tacoma Intl Salt Lake City
Delta Logo
12:58 pm - 10:43 pmBIL  Billings Logan Intl-ONT Ontario
10h 45m2 stops Salt Lake City Seattle/Tacoma Intl
$723Delta
Wed, Nov 25 - Mon, Nov 30
Delta Logo
6:00 am - 12:18 pmONT  Ontario-BIL Billings Logan Intl
5h 18m1 stop Salt Lake City
Delta Logo
6:29 pm - 11:49 pmBIL  Billings Logan Intl-ONT Ontario
6h 20m1 stop Salt Lake City
$848Delta

Price, demand and travel trends for Ontario to Billings flights

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

What's the cheapest day of the week to fly from Ontario to Billings?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Ontario to Billings. It’s 21% cheaper than the average day, while Wednesday is the most expensive, with prices 46% higher.

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Key details for Ontario to Billings flights

Low season

February

Cheapest flight

$279
Beat the crowds with an average 56% drop in travelers.
The most popular month to fly with an average 71% increase in travelers.
One-way flight from Ontario to Billings

When to book flights from Ontario to Billings

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

Your Ontario to Billings 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 Ontario to Billings?

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

  • How long is a flight from Ontario to Billings?

    A nonstop flight from Ontario to Billings takes 00m, covering 941 miles.

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

    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 much should I expect to pay for a Ontario to Billings flight?

    Round-trip flights from Ontario to Billings range from $341 to $625, with an average of $427 over the past 12 months. Anything below $341 counts as a good deal.

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

    One-way fares from Ontario to Billings are currently higher than usual. Average one-way flight prices are about $408, which is 58% above the typical average for this route.

  • What car rental options are available at Billings Logan Intl Airport (BIL)?

    Billings Logan Intl Airport (BIL) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:

    • Rent-A-Wreck
    • Budget
    • Alamo
    • Hertz
    • Enterprise Rent-A-Car

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

    Flights from Ontario to Billings usually depart from Ontario (ONT) and arrive at Billings Logan Intl (BIL).

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

    One-stop flights from Ontario to Billings most commonly connect through:

    • Salt Lake City (SLC) - 60% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 15% of one-stop connections
    • Denver Intl (DEN) - 13% of one-stop connections
    • Portland (PDX) - 7% of one-stop connections

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

    Yes. Flexible dates can save you up to 46% on flights from Ontario to Billings. Thursday is the cheapest departure day at $340 round-trip on average, while Wednesday is the most expensive at $625, a difference of $285.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Ontario to Billings?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 4h 45m, compared with 5h 08m via Phoenix Sky Harbor Intl (PHX) and 6h 04m via Seattle/Tacoma Intl (SEA).

  • What is the time difference between Ontario and Billings?

    Billings is 1 hour ahead of Ontario (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Ontario to Billings flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Wednesday. On this route, Thursday flights average $340, about $285 less than Wednesday fares (46% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Billings trip for February. Fares historically average $340 round-trip in that month - typically $298 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Billings Logan Intl Airport.

    • Hilltop Inn by Riversage

More options for your flight from Ontario to Billings

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

Car rentals in Billings
Hotels in Billings
Vacations in Billings