MSO - ONT

$194 Find Cheap Flights from Missoula to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$194
Typical prices: $350-$533
Multiple Airlines
Sun 12/23Sat 12/29
MSO - ONT • 1 stop
Cheapest one-way
$245
Typical prices: $130-$285
Alaska Airlines
Sat 12/29
MSO - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Missoula and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 45% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Denver Intl (DEN)
Cheapest • Avg $322 (round-trip)
Salt Lake City (SLC)
Shortest trip • 5h 14m (one-way)
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Insights
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Flight Deals

Cheap Flights from Missoula to Ontario (MSO-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Missoula to Ontario

Wed, Dec 23 - Tue, Dec 29
Multiple Airlines Logo
10:27 am - 9:53 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
12h 26m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
10:48 pm - 9:37 amONT  Ontario-MSO Missoula Johnson-Bell Field
9h 49m1 stop Las Vegas Harry Reid Intl
$194Multiple Airlines
Wed, Dec 23 - Tue, Dec 29
Multiple Airlines Logo
10:27 am - 9:28 amMSO  Missoula Johnson-Bell Field-ONT Ontario
48h 01m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
10:48 pm - 9:37 amONT  Ontario-MSO Missoula Johnson-Bell Field
9h 49m1 stop Las Vegas Harry Reid Intl
$242Multiple Airlines
Sat, Dec 5 - Wed, Dec 9
Alaska Airlines Logo
7:01 am - 4:05 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
10h 04m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 12:23 pmONT  Ontario-MSO Missoula Johnson-Bell Field
5h 23m1 stop Seattle/Tacoma Intl
$483Alaska Airlines
Sat, Jan 9 - Tue, Jan 19
Alaska Airlines Logo
2:12 pm - 10:43 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
9h 31m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 3:22 pmONT  Ontario-MSO Missoula Johnson-Bell Field
8h 22m1 stop Seattle/Tacoma Intl
$483Alaska Airlines
Sat, Jan 9 - Tue, Jan 19
Alaska Airlines Logo
7:35 am - 3:33 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
8h 58m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:29 pm - 9:22 pmONT  Ontario-MSO Missoula Johnson-Bell Field
27h 53m1 stop Seattle/Tacoma Intl
$483Alaska Airlines
Wed, Dec 16 - Sun, Jan 3
Delta Logo
6:25 pm - 11:57 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
6h 32m1 stop Salt Lake City
Delta Logo
6:00 am - 12:37 pmONT  Ontario-MSO Missoula Johnson-Bell Field
5h 37m1 stop Salt Lake City
$489Delta
Thu, Dec 10 - Sun, Dec 13
Delta Logo
1:19 pm - 10:59 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
10h 40m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
5:04 pm - 12:37 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 33m1 stop Salt Lake City
$491Delta
Tue, Dec 1 - Tue, Dec 8
Delta Logo
6:25 pm - 11:57 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
6h 32m1 stop Salt Lake City
Delta Logo
11:57 am - 12:37 amONT  Ontario-MSO Missoula Johnson-Bell Field
11h 40m2 stops Seattle/Tacoma Intl Salt Lake City
$534Delta
Tue, Nov 17 - Fri, Nov 20
United Airlines Logo
6:15 am - 12:33 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 18m1 stop Denver Intl
United Airlines Logo
5:00 am - 1:31 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 31m1 stop Denver Intl
$569United Airlines
Tue, Nov 17 - Sat, Nov 21
United Airlines Logo
2:37 pm - 8:51 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 14m1 stop Denver Intl
United Airlines Logo
5:00 am - 1:31 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 31m1 stop Denver Intl
$582United Airlines
Booking Insights

Price, demand and travel trends for Missoula to Ontario 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 Missoula to Ontario?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Missoula to Ontario. It’s 11% cheaper than the average day, while Saturday is the most expensive, with prices 61% higher.

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Key details for Missoula to Ontario flights

Low season

October

Cheapest flight

$194
Beat the crowds with an average 64% drop in travelers.
The most popular month to fly with an average 38% increase in travelers.
Round-trip flight from Missoula to Ontario

When to book flights from Missoula to Ontario

Are your dates flexible? Find out the best times to travel from Missoula 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 Missoula 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 Missoula to Ontario?

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

  • How long is a flight from Missoula to Ontario?

    A nonstop flight from Missoula to Ontario takes 00m, covering 907 miles.

  • Do I need a passport to fly from Missoula 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 much should I expect to pay for a Missoula to Ontario flight?

    Round-trip flights from Missoula to Ontario range from $350 to $533, with an average of $427 over the past 12 months. Anything below $350 counts as a good deal.

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

    One-way fares from Missoula to Ontario are currently higher than usual. Average one-way flight prices are about $317, which is 29% 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 averaging $60 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Alamo
    • Dollar

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

    Flights from Missoula to Ontario usually depart from Missoula Johnson-Bell Field (MSO) and arrive at Ontario (ONT).

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

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

    • Salt Lake City (SLC) - 56% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 20% of one-stop connections
    • Denver Intl (DEN) - 16% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 8% of one-stop connections

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

    Yes. Flexible dates can save you up to 45% on flights from Missoula to Ontario. Thursday is the cheapest departure day at $384 round-trip on average, while Saturday is the most expensive at $688, a difference of $304.

    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 Missoula to Ontario?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 5h 14m, compared with 6h 19m via Seattle/Tacoma Intl (SEA) and 7h 20m via Denver Intl (DEN).

  • What is the time difference between Missoula and Ontario?

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

  • 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 Missoula to Ontario 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 Saturday. On this route, Thursday flights average $384, about $304 less than Saturday fares (44% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Missoula to Ontario trip for January. Fares historically average $236 round-trip in that month - typically $332 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Ontario Airport Inn
    • Holiday Inn Ontario Airport By IHG
    • Azure Hotel & Suites, Trademark Collection by Wyndham

More options for your flight from Missoula to Ontario

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

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario