MSO - ONT

$106 Find Cheap Flights from Missoula to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Missoula to Ontario departing on 6/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Missoula to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Missoula to Ontario, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Missoula to Ontario (MSO-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Missoula to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Missoula to Ontario

Fri, Jul 11 - Wed, Jul 16
Delta Logo
5:30 am - 8:47 amMSO-ONT
4h 17m1 stop
Delta Logo
5:09 pm - 12:24 amONT-MSO
6h 15m1 stop
$251Delta
Find Deal
Thu, Aug 21 - Sun, Aug 24
Hawaiian Airlines Logo
6:40 pm - 11:59 pmMSO-ONT
6h 19m1 stop
Hawaiian Airlines Logo
6:00 am - 3:16 pmONT-MSO
8h 16m1 stop
$263Hawaiian Airlines
Find Deal
Mon, Aug 25 - Fri, Aug 29
Hawaiian Airlines Logo
6:40 pm - 11:59 pmMSO-ONT
6h 19m1 stop
Hawaiian Airlines Logo
7:10 am - 1:34 pmONT-MSO
5h 24m1 stop
$284Hawaiian Airlines
Find Deal
Sun, Aug 3 - Sun, Aug 3
Delta Logo
5:30 am - 8:47 amMSO-ONT
4h 17m1 stop
Delta Logo
5:09 pm - 12:24 amONT-MSO
6h 15m1 stop
$285Delta
Find Deal
Mon, Aug 25 - Fri, Aug 29
Alaska Airlines Logo
6:40 pm - 11:59 pmMSO-ONT
6h 19m1 stop
Alaska Airlines Logo
7:10 am - 6:00 pmONT-MSO
9h 50m2 stops
$327Alaska Airlines
Find Deal
Sat, Aug 2 - Sat, Aug 2
Alaska Airlines Logo
6:35 am - 1:26 pmMSO-ONT
7h 51m1 stop
Alaska Airlines Logo
6:51 pm - 12:35 pmONT-MSO
16h 44m1 stop
$338Alaska Airlines
Find Deal
Tue, Jul 1 - Sat, Jul 5
American Airlines Logo
1:54 pm - 10:11 pmMSO-ONT
9h 17m1 stop
American Airlines Logo
5:55 am - 10:35 pmONT-MSO
15h 40m2 stops
$437American Airlines
Find Deal
Wed, Sep 24 - Sun, Sep 28
United Airlines Logo
6:30 am - 5:37 pmMSO-ONT
12h 07m2 stops
United Airlines Logo
5:05 am - 1:27 pmONT-MSO
7h 22m1 stop
$448United Airlines
Find Deal
Tue, Sep 2 - Tue, Sep 9
United Airlines Logo
6:30 am - 12:13 pmMSO-ONT
30h 43m2 stops
United Airlines Logo
5:10 am - 1:34 pmONT-MSO
7h 24m1 stop
$488United Airlines
Find Deal
Tue, Jul 1 - Sat, Jul 5
American Airlines Logo
7:03 am - 6:12 pmMSO-ONT
12h 09m2 stops
American Airlines Logo
5:55 am - 10:35 pmONT-MSO
15h 40m2 stops
$549American Airlines
Find Deal
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KAYAK's insights & trends for Missoula to Ontario flights

Get data-powered insights and trends into flights from Missoula to Ontario to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all round-trip flights from Missoula to Ontario clicked on KAYAK for each day over the last 12 months.

When flying from Missoula to Ontario, you should consider leaving on a Thursday and avoid Tuesdays if you are looking for the best rates. For your return to Missoula, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Missoula to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Missoula to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Missoula to Ontario is August, where tickets cost $178 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,058 and $514 respectively.

Good to know

Low seasonDecember
High seasonJune
Cheapest flight$106
Best time to beat the crowds but there is an average 163% increase in price.
Most popular time to fly and prices are also 19% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Missoula to Ontario

  • What is the cheapest flight from Missoula to Ontario?

    In the last 3 days, the lowest price for a flight from Missoula to Ontario was $106 for a one-way ticket and $251 for a round-trip.

  • Do I need a passport to fly between Missoula and Ontario?

    A passport is not required to fly from Missoula to Ontario.

  • Which airports will I be using when flying from Missoula to Ontario?

    When flying out of Missoula you will be using Missoula Johnson-Bell Field. You will be landing at Ontario, also known as Ontario.

  • Which aircraft models fly most regularly from Missoula to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Missoula to Ontario?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Missoula and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Missoula to Ontario, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Missoula to Ontario are Alaska Airlines and Delta. With an average price for the route of $362 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $309 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Missoula to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missoula to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missoula to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Missoula is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missoula to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Missoula with another airline. Booking your flights between Missoula and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missoula to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Missoula up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Missoula to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Missoula to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Missoula to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
8.1Boarding
8.5Crew
7.1Entertainment
7.8Comfort
7.1Food
Airline reviews

Passengers were not informed timely of delays. The staff appeared like they didn't really care about the passengers.

6.0 GoodDarrilynn, Jun 2025SEA - SFO
Read more Alaska Airlines reviews

Passengers were not informed timely of delays. The staff appeared like they didn't really care about the passengers.

Both flights were delayed going to our destination and leaving, and communication about the delays was not great by the airlines, now the crews were phenomenal and great to be around!!

Delayed. It's not our first flight with them either, it's actually our 3rd and all 3 were delayed by hours each time. It was a myriad of delays. On one flight we boarded after being delayed for a little over an hr, only to be told we were going to sit in the plane for another hour before departing. Once landed, we waited another 40ish min to get to our gate. On another flight, flight was delayed just under 3 hrs but atleast we got to wait it out at the airport terminal. Its just a bad experience overall flying with Alaska Airlines.

Flight was delayed for weather, then delayed for mechanical, then just cancelled. Once mechanical problems started I wish you had just started offering rebooking options (at the same airport). I felt my trip was not a priority for you. I called you, I asked for a better option (than changing airports), then I had to literally run around the airport making it happen. Do better.

I would've liked to have the seat tablets like before to view movies, with long travels not everyone carries tablets to view movies. And phones are not worth it because screens to small.

Horrible! No blanket or pillow available! We had bulkhead seats but the seats were worn out and no cushion old. No meal or even a sandwich for our 5 hour flight just a little bag of pretzels. Crabby attendant female with long brown hair. We will not book Alaska Airlines again

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

No WiFi available. It was too late to order food also. Guy next to me was huge (not fat) so had his shoulder & thigh next to me the whole way. Plane was delayed leaving PDX due to 8 other planes waiting. Not my best Alaska airlines flight.

I do wish the the actual airplane I flew on was bigger. But, I made it work.

It is very bad they do not give you money back

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

Everything you need to know for your flight from Missoula to Ontario

Information on your arrival and departure airports

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