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ONT - MSO

$85 Find cheap flights from Ontario to Missoula

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Missoula departing on 7/28. 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
0 bags
Wed 7/10
Wed 7/17

Search hundreds of travel sites at once for deals on flights to Missoula

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Missoula, 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 Ontario to Missoula, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Missoula (ONT-MSO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Missoula 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 and deals for you by selecting your travel dates.
Choose your dates
12:49 am - 2:24 pmONT-MSO
12h 35m1 stop
3:24 pm - 11:44 pmMSO-ONT
9h 20m1 stop
$137Frontier
Find Deal
Fri, Aug 16 - Sat, Aug 24
12:59 am - 1:05 pmONT-MSO
11h 06m1 stop
3:24 pm - 11:44 pmMSO-ONT
9h 20m1 stop
$138Frontier
Find Deal
Sun, Aug 11 - Sat, Aug 17
6:00 am - 1:51 pmONT-MSO
6h 51m1 stop
3:14 pm - 11:39 pmMSO-ONT
9h 25m1 stop
Thu, Sep 5 - Mon, Sep 9
4:24 pm - 11:35 pmONT-MSO
6h 11m1 stop
2:05 pm - 11:49 pmMSO-ONT
10h 44m1 stop
Wed, Jul 17 - Mon, Jul 22
6:00 am - 1:54 pmONT-MSO
6h 54m1 stop
6:55 pm - 11:59 pmMSO-ONT
6h 04m1 stop
$322Alaska Airlines
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Tue, Aug 6 - Sat, Aug 17
6:00 am - 1:54 pmONT-MSO
6h 54m1 stop
6:55 pm - 11:59 pmMSO-ONT
6h 04m1 stop
$325Alaska Airlines
Find Deal
Tue, Aug 6 - Fri, Aug 16
5:10 am - 1:24 pmONT-MSO
7h 14m1 stop
6:20 am - 12:33 pmMSO-ONT
7h 13m1 stop
$453United Airlines
Find Deal
Tue, Aug 6 - Sun, Aug 18
1:35 pm - 9:32 pmONT-MSO
6h 57m1 stop
6:30 am - 5:22 pmMSO-ONT
11h 52m1 stop
$457United Airlines
Find Deal
Wed, Aug 21 - Sun, Aug 25
5:00 pm - 11:28 pmONT-MSO
5h 28m1 stop
5:33 am - 1:26 pmMSO-ONT
8h 53m2 stops
$481Delta
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Sat, Aug 24 - Sat, Aug 31
11:49 am - 11:28 pmONT-MSO
10h 39m2 stops
5:33 am - 1:26 pmMSO-ONT
8h 53m2 stops
$513Delta
Find Deal
Sat, Aug 24 - Sat, Aug 31

Flights from Ontario to Missoula - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Missoula 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 Ontario to Missoula?

The average price of all flights from Ontario to Missoula clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Missoula on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Ontario to Missoula. For your return ticket, we recommend flying on a Wednesday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Missoula, 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 Ontario to Missoula is June, where tickets cost $341 on average. On the other hand, the most expensive months are October and August, where the average cost of tickets is $577 and $546 respectively.

How far in advance should I book a flight from Ontario to Missoula?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Missoula, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Missoula, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 42 days before departure.

Which airlines provide the cheapest flights from Ontario to Missoula?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Ontario to Missoula found on KAYAK was with Frontier for $85. Frontier proposed a round-trip connection from $137 and Alaska Airlines from $322.

Good to know

Low season

February

High season

June

Cheapest flight

$85
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 8% 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
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 Ontario to Missoula

  • What is the cheapest flight from Ontario to Missoula?

    In the last 3 days, the lowest price for a flight from Ontario to Missoula was $85 for a one-way ticket and $137 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Ontario to Missoula?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Missoula are Delta and Alaska Airlines. With an average price for the route of $436 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $556 and an overall rating of 8.0.

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

    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 Ontario to Missoula.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Missoula from Ontario 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 Ontario to Missoula?

    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 Missoula with an airline and back to Ontario with another airline. Booking your flights between Ontario and MSO 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 Ontario to Missoula?

    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 Missoula from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from Ontario to Missoula

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Missoula. 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 Ontario to Missoula? 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 9254 reviews
8.2Boarding
8.6Crew
7.9Comfort
7.3Food
7.3Entertainment
Airline reviews

Everything was great but there were no entertainment options available.

6.0 GoodKyndra Homuth, Jun 2024SFO - PDX
Read more about Alaska Airlines reviews

Everything was great but there were no entertainment options available.

Flight was delayed 2 hours. It was too cold inside the cabin. My seat mate had no jacket so she was shivering the entire flight. The stewardess says there’s no available blanket.

The plane had to sit on the tarmac for 45 minutes once it had landed. Not Alaska’s fault.

No prob with entertainment-would have selected n/a if it had been an option. No entertainment-flight was only a short hop. Great flight,

I love having assigned seats and being able to check bags at the gate, if needed. Both are super-helpful when traveling with a toddler!!!

It was really good and that's why we choose AA over other airlines.

Seats are uncomfortable but let room was adequate. The snack is pretty weak and the staff not particularly friendly.

Flight was cancelled just before we boarded. I had to stayed an extra night in SF and arrived one day late. Also I had to flight back JFK and not Newark since they didn't have flight to Newark until very late the following day. A real bad experience on this flight. It took me 2 days to get back home.

We landed in San Diego from Fresno 10 min late and our gate was occupied. We waited OVER AN HOUR to get to the gate and didnt get any updates about what was happening until I asked. Then we were told it would be another 5 minutes....which turned into 25. My wife was waiting in cell phone lot over an hour and finally had to leave. It cost me $40 cab ride and a fight with my wife. THanks for nothing Alaska Air.

The flight was delayed by more than two hours. A notification ahead of time would be most helpful.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

I had a great flight. Everything went smoothly and the flight arrived early.

On time take off…US cabins look tired and need of refresh!

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Book cheap flights from Ontario to Missoula

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Missoula found on KAYAK in the last 72 hours.
7/28Sun
1 stopFrontier
11h 06mONT-MSO
$85
8/21Wed
1 stopFrontier
9h 38mONT-MSO
$123
9/5Thu
1 stopAlaska Airlines
6h 51mONT-MSO
$154
7/23Tue
1 stopAlaska Airlines
16h 34mONT-MSO
$157
7/2Tue
1 stopUnited Airlines
14h 22mONT-MSO
$267
8/22Thu
2 stopsAmerican Airlines
15h 40mONT-MSO
$289
7/2Tue
2 stopsUnited Airlines
19h 07mONT-MSO
$292
7/30Tue
2 stopsAmerican Airlines
11h 00mONT-MSO
$338
6/13Thu
1 stopDelta
4h 25mONT-MSO
$386
7/31Wed
1 stopDelta
10h 07mONT-MSO
$480

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Ontario - Missoula Flights

Departure:

Ontario (ONT)United States

Destination:

Missoula (MSO)United States

Return flight deals:

Missoula - Ontario

Cabin classes: