ONT - MSO

$245 Find Cheap Flights from Ontario to Missoula - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$415
Typical prices: $350-$578
Multiple Airlines
Sun 11/25Fri 11/30
ONT - MSO • 2 stops
Cheapest one-way
$245
Typical prices: $190-$325
Alaska Airlines
Thu 1/4
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
February
Cheapest • 36% 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)
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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, Nov 25 - Mon, Nov 30
Multiple Airlines Logo
8:15 am - 11:25 amONT  Ontario-MSO Missoula Johnson-Bell Field
26h 10m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl
Multiple Airlines Logo
7:31 pm - 6:11 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
23h 40m2 stops Phoenix-Mesa Gateway Las Vegas Harry Reid Intl
$415Multiple Airlines
Sat, Nov 21 - Sat, Nov 28
Multiple Airlines Logo
10:47 pm - 9:17 amONT  Ontario-MSO Missoula Johnson-Bell Field
9h 30m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:55 pm - 8:30 amMSO  Missoula Johnson-Bell Field-ONT Ontario
11h 35m1 stop Las Vegas Harry Reid Intl
$439Multiple Airlines
Sat, Nov 21 - Sat, Nov 28
Multiple Airlines Logo
10:47 pm - 9:17 amONT  Ontario-MSO Missoula Johnson-Bell Field
9h 30m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:55 pm - 8:30 amMSO  Missoula Johnson-Bell Field-ONT Ontario
11h 35m1 stop Las Vegas Harry Reid Intl
$440Multiple Airlines
Tue, Dec 8 - Wed, Dec 9
Delta Logo
5:04 pm - 12:37 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 33m1 stop Salt Lake City
Delta Logo
5:25 am - 5:15 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
12h 50m2 stops Salt Lake City Seattle/Tacoma Intl
$461Delta
Wed, Jan 20 - Sun, Jan 24
Alaska Airlines Logo
6:00 am - 9:22 pmONT  Ontario-MSO Missoula Johnson-Bell Field
14h 22m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:12 pm - 10:43 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 31m1 stop Seattle/Tacoma Intl
$486Alaska Airlines
Fri, Nov 20 - Sat, Dec 5
Delta Logo
5:04 pm - 12:20 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 16m1 stop Salt Lake City
Delta Logo
1:19 pm - 10:59 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
10h 40m2 stops Salt Lake City Seattle/Tacoma Intl
$486Delta
Thu, Nov 19 - Sat, Dec 5
Delta Logo
5:04 pm - 12:20 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 16m1 stop Salt Lake City
Delta Logo
1:19 pm - 10:59 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
10h 40m2 stops Salt Lake City Seattle/Tacoma Intl
$486Delta
Thu, Dec 17 - Sun, Jan 3
Alaska Airlines Logo
6:00 am - 3:09 pmONT  Ontario-MSO Missoula Johnson-Bell Field
8h 09m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
1:59 pm - 8:03 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 04m1 stop Seattle/Tacoma Intl
$489Alaska Airlines
Tue, Dec 8 - Fri, Dec 11
United Airlines Logo
1:40 pm - 9:47 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 07m1 stop Denver Intl
United Airlines Logo
2:41 pm - 9:11 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 30m1 stop Denver Intl
$589United Airlines
Wed, Dec 9 - Fri, Dec 11
United Airlines Logo
1:40 pm - 9:47 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 07m1 stop Denver Intl
United Airlines Logo
2:41 pm - 9:11 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 30m1 stop Denver Intl
$589United 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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to Missoula. It’s 25% cheaper than the average day, while Thursday is the most expensive, with prices 39% higher.

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Key details for Ontario to Missoula flights

Low season

February

Cheapest flight

$245
Beat the crowds with an average 60% drop in travelers.
The most popular month to fly with an average 40% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

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

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

  • How long is a flight from Ontario to Missoula?

    A nonstop flight from Ontario to Missoula takes 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.

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

    Round-trip flights from Ontario to Missoula range from $350 to $578, with an average of $458 over the past 12 months. Anything below $350 counts as a good deal.

  • 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 $415 to $1,912. 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 higher than usual. Average one-way flight prices are about $396, which is 50% above the typical average for this route.

  • 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 averaging $81 for economy cars. Top options include:

    • Dollar
    • Budget
    • Thrifty
    • Hertz
    • Avis

  • 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).

  • 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) - 34% of one-stop connections
    • Salt Lake City (SLC) - 29% of one-stop connections
    • San Francisco (SFO) - 18% of one-stop connections
    • Denver Intl (DEN) - 11% of one-stop connections

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

    Yes. Flexible dates can save you up to 47% on flights from Ontario to Missoula. Monday is the cheapest departure day at $344 round-trip on average, while Thursday is the most expensive at $640, a difference of $296.

    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 Missoula?

    Flying via Portland (PDX) gives the shortest average 1-stop total travel time at 5h 06m, compared with 5h 07m via San Francisco (SFO) and 5h 29m 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.

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 are flexible, aim for a Monday departure and avoid flying on Thursday. On this route, Monday flights average $344, about $296 less than Thursday fares (46% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Missoula trip for February. Fares historically average $294 round-trip in that month - typically $396 less than the most expensive month, which is August (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.

    • Fairfield Inn & Suites by Marriott Missoula
    • StoneCreek Lodge

More options for your flight from Ontario to Missoula

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

Car rentals in Missoula
Hotels in Missoula
Vacations in Missoula