ONT - MSO

$244 Find Cheap Flights from Ontario to Missoula - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$324
Typical prices: $344-$539
Multiple Airlines
Sun 9/30Thu 10/4
ONT - MSO • 1 stop
Cheapest one-way
$244
Typical prices: $190-$320
Alaska Airlines
Mon 10/29
ONT - MSO • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Ontario and Missoula. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 21% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Las Vegas Harry Reid Intl (LAS)
Cheapest • Avg $223 (round-trip)
Portland (PDX)
Shortest trip • 5h 06m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Ontario to Missoula (ONT-MSO)

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

Recent round-trip flight deals from Ontario to Missoula

Wed, Sep 30 - Sun, Oct 4
Multiple Airlines Logo
2:30 pm - 1:50 pmONT  Ontario-MSO Missoula Johnson-Bell Field
22h 20m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:05 pm - 7:04 amMSO  Missoula Johnson-Bell Field-ONT Ontario
13h 59m1 stop Las Vegas Harry Reid Intl
$324Multiple Airlines
Wed, Sep 30 - Sun, Oct 4
Multiple Airlines Logo
10:04 am - 1:50 pmONT  Ontario-MSO Missoula Johnson-Bell Field
26h 46m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:05 pm - 7:36 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
26h 31m2 stops Las Vegas Harry Reid Intl San Francisco
$467Multiple Airlines
Thu, Dec 17 - Tue, Dec 29
Alaska Airlines Logo
4:01 pm - 11:52 pmONT  Ontario-MSO Missoula Johnson-Bell Field
6h 51m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:01 am - 11:10 amMSO  Missoula Johnson-Bell Field-ONT Ontario
5h 09m1 stop Seattle/Tacoma Intl
$487Alaska Airlines
Thu, Nov 5 - Mon, Nov 9
Alaska Airlines Logo
12:02 pm - 9:18 pmONT  Ontario-MSO Missoula Johnson-Bell Field
8h 16m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:21 pm - 11:06 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 45m1 stop Seattle/Tacoma Intl
$487Alaska Airlines
Thu, Oct 29 - Mon, Nov 2
Delta Logo
5:03 pm - 12:31 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 28m1 stop Salt Lake City
Delta Logo
6:25 pm - 10:12 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
4h 47m1 stop Salt Lake City
$487Delta
Thu, Nov 19 - Tue, Nov 24
Alaska Airlines Logo
7:13 pm - 12:24 pmONT  Ontario-MSO Missoula Johnson-Bell Field
16h 11m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:22 am - 11:11 amMSO  Missoula Johnson-Bell Field-ONT Ontario
5h 49m1 stop Seattle/Tacoma Intl
$487Alaska Airlines
Fri, Oct 23 - Sun, Oct 25
Delta Logo
5:03 pm - 12:31 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 28m1 stop Salt Lake City
Delta Logo
5:30 am - 8:55 amMSO  Missoula Johnson-Bell Field-ONT Ontario
4h 25m1 stop Salt Lake City
$489Delta
Thu, Nov 5 - Sun, Nov 8
United Airlines Logo
5:00 am - 1:31 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 31m1 stop Denver Intl
United Airlines Logo
2:37 pm - 8:51 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 14m1 stop Denver Intl
$500United Airlines
Fri, Oct 16 - Fri, Oct 23
United Airlines Logo
5:00 am - 1:32 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 32m1 stop Denver Intl
United Airlines Logo
6:15 am - 12:46 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 31m1 stop Denver Intl
$501United Airlines
Thu, Oct 1 - Sun, Oct 4
Multiple Airlines Logo
8:00 am - 1:50 pmONT  Ontario-MSO Missoula Johnson-Bell Field
4h 50m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:05 pm - 7:04 amMSO  Missoula Johnson-Bell Field-ONT Ontario
13h 59m1 stop Las Vegas Harry Reid Intl
$503Multiple Airlines
Booking Insights

Price, demand and travel trends for Ontario to Missoula flights

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

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

Monday is the cheapest day of the week to fly from Ontario to Missoula, it is 20% cheaper than the average day. Tuesday is the most expensive day with flight prices 26% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Ontario to Missoula flights

Low season

February

Cheapest flight

$244
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Ontario to Missoula

When to book flights from Ontario to Missoula

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

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

  • What cabin classes can I book on flights from Ontario to Missoula?

    Two cabin classes are available on flights from Ontario to Missoula:

    • Economy Class
    • First Class

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

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

    • Seattle/Tacoma Intl (SEA) - 40% of one-stop connections
    • Salt Lake City (SLC) - 31% of one-stop connections
    • Denver Intl (DEN) - 15% of one-stop connections
    • Portland (PDX) - 6% of one-stop connections

    Seattle/Tacoma Intl (SEA) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 37% on the Ontario to Missoula route. Monday is the cheapest departure day at $344 round-trip on average, while Tuesday is the most expensive at $540, a difference of $196. 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 long is a flight from Ontario to Missoula?

    A nonstop flight from Ontario to Missoula takes 0h 00m, covering 907 miles.

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

    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 Ontario to Missoula 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 $324 to $1,518. That means the highest observed fare was about 5x higher than the lowest one.

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

    One-way fares from Ontario to Missoula are currently in line with typical prices for this route. Average one-way fares are about $281.

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

    Flying via Portland (PDX) gives the shortest average 1-stop total travel time at 5h 06m, compared with 5h 08m via San Francisco (SFO) and 5h 26m via Salt Lake City (SLC).

  • What is the time difference between Ontario and Missoula?

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

  • What car rental options are available at Missoula Johnson-Bell Field Airport (MSO)?

    Missoula Johnson-Bell Field Airport (MSO) hosts 5 major car rental companies, with daily rates starting from around $22 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Thrifty
    • Avis

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

    Round-trip flights from Ontario to Missoula range from $344 to $539, with an average of $428 over the past 12 months. Anything below $344 counts as a good deal.

Your guide to booking Ontario to Missoula flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Tuesday. On this route, Monday flights average $344 - about $196 less than Tuesday (36% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Missoula trip for January. Fares historically average $339 round-trip in that month - typically $329 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 Missoula Johnson-Bell Field Airport.
    - StoneCreek Lodge
    - Fairfield Inn & Suites by Marriott Missoula

More options for your flight from Ontario to Missoula

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

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