MSO - ONT

$119 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 5/21. 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

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 Flight Deals 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.

Recent round-trip flight deals from Missoula to Ontario

KAYAK's recommended round-trip deals from the most popular airlines that fly from Missoula to Ontario.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
5:40 am - 9:11 amMSO-ONT
4h 31m1 stop
Delta Logo
6:00 am - 12:23 pmONT-MSO
5h 23m1 stop
$278Delta
Find Deal
Thu, May 22 - Mon, May 26
Alaska Airlines Logo
5:45 am - 9:17 amMSO-ONT
4h 32m1 stop
Alaska Airlines Logo
7:30 am - 1:19 pmONT-MSO
4h 49m1 stop
$291Alaska Airlines
Find Deal
Mon, Jun 2 - Sat, Jun 7
Delta Logo
6:10 pm - 11:46 pmMSO-ONT
6h 36m1 stop
Delta Logo
11:29 am - 12:31 amONT-MSO
12h 02m2 stops
$296Delta
Find Deal
Fri, Oct 24 - Tue, Oct 28
Alaska Airlines Logo
5:45 am - 9:17 amMSO-ONT
4h 32m1 stop
Alaska Airlines Logo
4:45 pm - 11:36 pmONT-MSO
5h 51m1 stop
$307Alaska Airlines
Find Deal
Mon, May 19 - Sat, May 24
Alaska Airlines Logo
6:35 am - 10:44 amMSO-ONT
5h 09m1 stop
Alaska Airlines Logo
6:00 am - 3:16 pmONT-MSO
8h 16m1 stop
$309Alaska Airlines
Find Deal
Thu, Aug 21 - Sun, Aug 24
Alaska Airlines Logo
1:59 pm - 6:25 pmMSO-ONT
5h 26m1 stop
Alaska Airlines Logo
7:30 am - 2:21 pmONT-MSO
29h 51m2 stops
$366Alaska Airlines
Find Deal
Thu, May 22 - Mon, May 26
Hawaiian Airlines Logo
1:59 pm - 6:25 pmMSO-ONT
5h 26m1 stop
Hawaiian Airlines Logo
7:30 am - 1:19 pmONT-MSO
4h 49m1 stop
$407Hawaiian Airlines
Find Deal
Thu, May 22 - Mon, May 26
Hawaiian Airlines Logo
1:59 pm - 6:25 pmMSO-ONT
5h 26m1 stop
Hawaiian Airlines Logo
4:45 pm - 11:36 pmONT-MSO
5h 51m1 stop
$460Hawaiian Airlines
Find Deal
Thu, May 15 - Mon, May 19
United Airlines Logo
2:35 pm - 8:53 pmMSO-ONT
7h 18m1 stop
United Airlines Logo
6:41 pm - 1:27 pmONT-MSO
17h 46m2 stops
$509United Airlines
Find Deal
Mon, May 19 - Sat, May 24
United Airlines Logo
2:35 pm - 8:53 pmMSO-ONT
7h 18m1 stop
United Airlines Logo
6:48 pm - 9:19 pmONT-MSO
25h 31m2 stops
$538United Airlines
Find Deal
Thu, May 15 - Mon, May 19
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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$119
Best time to beat the crowds but there is an average 153% increase in price.
Most popular time to fly and prices are also 13% 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 $119 for a one-way ticket and $278 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?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Missoula and Ontario, with SkyTeam 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 $336 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.

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 9968 reviews
8.2Boarding
7.9Comfort
7.1Food
7.1Entertainment
8.5Crew
Airline reviews

Boarding was quick and easy as always the crew is on their game as always I always have an enjoyable flight so I’m good.

10.0 ExcellentAnonymous, Apr 2025EUG - LAX
Read more Alaska Airlines reviews

Boarding was quick and easy as always the crew is on their game as always I always have an enjoyable flight so I’m good.

Need to get on train for second flight it’s much nicer when all the gates are together for obvious reasons

Close boarding too early we’re willing to not let people on flight that could not check in. What ever happened to customer service? Three of us had to fight to get on plane shameful

Cramped, crowded aircraft. Poorly organized boarding. Tasteless crackers to eat. 40 minutes late. A standard US air travel experience.

It was my first time flying Alaska Airlines and first time flying from Santa Rosa airport. The staff was very professional and friendly. Their instructions were clear and any question was answered satisfactorily. My seat was comfortable and the in-flight beverage service very adequate for the duration of the flight. We arrived ahead of the scheduled landing time and deplaning was simple. I look forward to flying with Alaska again.

Flight attendant took my carefully folded coat and flung it across the aisle to the bin across the way. Where one of the passengers rescued it for me, because that just wasn’t right!!

the flight was delayed twice and then delayed from taking off.

Crew was very good. Problem was not Alaska Airlines’ fault, there was a horrible, squealing, screaming kid near me.

This was my first trip in years with Alaska. I don’t think I’ll do it again. The planes are old and tired looking. The seats are small with zero legroom. The JFK terminal is one of the worst I’ve been in. On this flight the pilot had to abort the landing and circle the Bay before trying again. I think I’ll stick with the usual suspects …

Flight was over an hour late, and we got notified every 15 minutes, beginning right at boarding, that it would only be 15 more minutes until we finally left about 75 minutes late. Of course, no compensation was offered.

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.

Nothing unusual. It was fine. I hate having to pay extra for my seat.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

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

Information on your arrival and departure airports

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