MSO - ONT

$199 Find Cheap Flights from Missoula to Ontario - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$199
Typical prices: $330-$485
Multiple Airlines
Thu 11/15Sun 12/2
MSO - ONT • 1 stop
Cheapest one-way
$244
Typical prices: $130-$250
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 • 41% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Denver Intl (DEN)
Cheapest • Avg $318 (round-trip)
Portland (PDX)
Shortest trip • 5h 08m (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

Sun, Nov 15 - Wed, Dec 2
Multiple Airlines Logo
9:07 pm - 11:16 amMSO  Missoula Johnson-Bell Field-ONT Ontario
15h 09m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
10:05 am - 5:49 pmONT  Ontario-MSO Missoula Johnson-Bell Field
6h 44m1 stop Las Vegas Harry Reid Intl
$199Multiple Airlines
Sun, Nov 8 - Wed, Nov 11
Multiple Airlines Logo
9:07 pm - 11:16 amMSO  Missoula Johnson-Bell Field-ONT Ontario
15h 09m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
5:07 pm - 4:25 pmONT  Ontario-MSO Missoula Johnson-Bell Field
22h 18m1 stop Las Vegas Harry Reid Intl
$207Multiple Airlines
Sun, Nov 15 - Wed, Dec 2
Multiple Airlines Logo
9:07 pm - 7:28 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
23h 21m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
10:05 am - 9:24 amONT  Ontario-MSO Missoula Johnson-Bell Field
22h 19m1 stop Las Vegas Harry Reid Intl
$311Multiple Airlines
Mon, Nov 9 - Tue, Nov 10
Delta Logo
6:22 pm - 11:49 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
6h 27m1 stop Salt Lake City
Delta Logo
5:04 pm - 12:22 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 18m1 stop Salt Lake City
$487Delta
Fri, Nov 6 - Tue, Nov 10
Delta Logo
6:25 pm - 10:11 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
4h 46m1 stop Salt Lake City
Delta Logo
5:04 pm - 12:22 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 18m1 stop Salt Lake City
$487Delta
Mon, Nov 9 - Thu, Nov 12
Delta Logo
6:22 pm - 11:49 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
6h 27m1 stop Salt Lake City
Delta Logo
5:04 pm - 12:22 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 18m1 stop Salt Lake City
$487Delta
Fri, Nov 13 - Mon, Nov 16
Alaska Airlines Logo
4:21 pm - 11:06 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 45m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 12:22 pmONT  Ontario-MSO Missoula Johnson-Bell Field
5h 22m1 stop Seattle/Tacoma Intl
$488Alaska Airlines
Fri, Nov 6 - Tue, Nov 10
Alaska Airlines Logo
4:21 pm - 11:06 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 45m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 12:22 pmONT  Ontario-MSO Missoula Johnson-Bell Field
5h 22m1 stop Seattle/Tacoma Intl
$488Alaska Airlines
Sat, Nov 7 - Fri, Nov 13
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
$489United Airlines
Wed, Sep 30 - Sun, Oct 4
United Airlines Logo
4:15 pm - 8:31 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
5h 16m1 stop San Francisco
United Airlines Logo
5:00 am - 1:32 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 32m1 stop Denver Intl
$549United 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 from Missoula to Ontario with more confidence.

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

Tuesday is the cheapest day of the week to fly from Missoula to Ontario, it is 8% cheaper than the average day. Sunday is the most expensive day with flight prices 64% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Missoula to Ontario flights

Low season

May

Cheapest flight

$244
Best time to beat the crowds with an average 2% drop in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

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

    • Economy Class
    • First Class

  • 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) - 18% of one-stop connections
    • Denver Intl (DEN) - 15% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 7% of one-stop connections

    Salt Lake City (SLC) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 44% on the Missoula to Ontario route. Tuesday is the cheapest departure day at $370 round-trip on average, while Sunday is the most expensive at $658, a difference of $288. 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 and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

  • How long is a flight from Missoula to Ontario?

    A nonstop flight from Missoula to Ontario takes 0h 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.

  • Have flight prices from Missoula to Ontario 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 $199 to $1,276. That means the highest observed fare was about 6x higher than the lowest one.

  • 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 $296, which is 21% above the typical average for this route.

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

    Flying via Portland (PDX) gives the shortest average 1-stop total travel time at 5h 08m, compared with 5h 22m via Salt Lake City (SLC) and 6h 21m via Seattle/Tacoma Intl (SEA).

  • 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 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 Missoula to Ontario flight?

    Round-trip flights from Missoula to Ontario range from $330 to $485, with an average of $400 over the past 12 months. Anything below $330 counts as a good deal.

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 can be flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average $370 - about $288 less than Sunday (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 $251 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.
    - Azure Hotel & Suites, Trademark Collection by Wyndham
    - La Quinta Inn & Suites by Wyndham Ontario Airport
    - Ontario Airport Inn

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