Title: CA $452 Cheap Flights from Ontario (ONT) to Missoula (MSO) - Expedia.ca ![](https://images.trvl-media.com/place/180035/8d4f3b71-c132-43dd-a9d7-a6eaa1a1767d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/180035/8d4f3b71-c132-43dd-a9d7-a6eaa1a1767d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $452 Cheap Flights from Ontario (ONT) to Missoula (MSO) [View CA $452 flight on Sun, Nov 23, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:ONT,to:MSO,departure:23/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:451.10&airProductToken=AQpmCjII1YIBEgQxMzUwGK6bASCDaSiR7P0CMJft_QI4V0AAWAFqBTJfZWNvcghXQUE0QUZFTgowCNWCARIDNjM5GINpIMx0KMzu_QIw0e_9AjhXQABYAWoFMl9lY29yCFdBQTRBRkVOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Missoula Intl. Airport (MSO) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:mso,departure:22/11/2025TANYT&leg2=from:mso,to:ont,departure:29/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:mso,departure:22/11/2025TANYT&leg2=from:mso,to:ont,departure:29/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:mso,departure:22/11/2025TANYT&leg2=from:mso,to:ont,departure:29/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:mso,departure:22/11/2025TANYT&leg2=from:mso,to:ont,departure:29/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:mso,departure:22/11/2025TANYT&leg2=from:mso,to:ont,departure:29/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![Hawaiian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:mso,departure:22/11/2025TANYT&leg2=from:mso,to:ont,departure:29/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Ontario (ONT) to Missoula (MSO) Prices were available within the past 7 days and start at CA $452 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ## Find the cheapest month to fly from Ontario (ONT) to Missoula (MSO) ### January is typically the cheapest month to fly From CA $309 - CA $783 per traveller. Flight from Ontario to Missoula (ONT - MSO) route information | Origin airport | Los Angeles - Ontario Intl. | | --- | --- | | Destination airport | Missoula Intl. | | Distance | 1451 km | ## Los Angeles to Missoula Flights **The easy way to book your flights from Ontario to Missoula**  With Expedia, it’s simple to find and book flights to Missoula from Ontario whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 2 airlines that cover this route. There are nonstop flights to Missoula Intl., too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario to Missoula today, tomorrow, or this week.   **Save dollars with cheap flights from Los Angeles - Ontario Intl., ONT to Missoula Intl., MSO**  Sort your search results by price to find great deals on your flight from Ontario to Missoula—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Missoula from Ontario currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Missoula   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Missoula from Ontario**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Missoula with Expedia today. ## Frequently asked questions ### How much is a flight from ONT to Missoula Intl. Airport? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight between Los Angeles - Ontario Intl. Airport (ONT) and Missoula Intl. Airport was . Cheap tickets don't last forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Ontario Airport to MSO? > The majority of flights can be cancelled online, but each air carrier has different terms and conditions. If you do have to cancel your flight, go to our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Los Angeles - Ontario Intl. Airport (ONT) to Missoula Intl. Airport that have flexible change policies? > Use our "No change fees" filter to find flexible travel options for your flight from ONT to Missoula Intl. Airport (MSO). This allows you to lock in a great deal in advance and still have the freedom to make changes without any additional fees. You'll just need to pay the difference in fare. ### How many hours is the flight from ONT to Missoula Intl. Airport? > It takes approximately 4 hours and 33 minutes to get from ONT to Missoula Intl. Airport (MSO). But with a solid playlist and an interesting book, the hours will pass by quicker. ### How far is the flight from ONT to Missoula Intl. Airport (MSO)? > The distance from Ontario Airport (ONT) to Missoula Intl. Airport (MSO) is only 1,450 kilometres. You'll be disembarking the plane and grabbing your baggage from the carousel before you know it. ### Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to MSO? > If you want to travel straight from ONT to Missoula Intl. Airport (MSO), you'll need to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route. ### Are ONT to Missoula Intl. Airport flight tickets cheaper when they're purchased at the last minute? > Flight tickets from ONT to Missoula Intl. Airport are available up to a year before departure on Expedia. And although you may score a fantastic last-minute deal, it's never a sure thing. Also, booking your flights well in advance means you'll have more options — and you can avoid ending up with the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials. ## Explore a world of travel with Expedia - Flights ### Flights - [Flights from SeaTac to Kalispell](https://www.expedia.ca/lp/flights/156205/6056415/seatac-to-kalispell) - [Flights from Atlanta to Kalispell](https://www.expedia.ca/lp/flights/178232/6056415/atlanta-to-kalispell) - [Flights from Atlanta to Western Montana](https://www.expedia.ca/lp/flights/178232/6229377/atlanta-to-western-montana) - [Flights from Boston to Western Montana](https://www.expedia.ca/lp/flights/178239/6229377/boston-to-western-montana) - [Flights from Calgary to Kalispell](https://www.expedia.ca/lp/flights/178245/6056415/calgary-to-kalispell) - [Flights from Chicago to Western Montana](https://www.expedia.ca/lp/flights/178248/6229377/chicago-to-western-montana) - [Flights from Dallas to Northwest Montana - Glacier National Park](https://www.expedia.ca/lp/flights/178253/6056408/dallas-to-northwest-montana-glacier-national-park) - 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