$174+ Cheap flights from Ontario to Missoula (ONT - MSO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSO
Sep 11 — Sep 181
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Missoula with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Missoula
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Best
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One-way
Cheapest flights from Ontario to MissoulaExplore the most affordable flight options available from Ontario to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
Explore the most affordable flight options available from Ontario to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:30 pm -
1 stop5h 29m
Thu 9/179:49 pm -
1 stop10h 15m
Deal found 8/10![Multiple Airlines logo]()
$401
This Booking.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:12 pm -
1 stop9h 49m
Tue 9/157:00 am -
1 stop8h 16m
Deal found 8/10![Alaska Airlines logo]()
$429
This Priceline deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:02 am -
1 stop8h 15m
Sat 9/197:00 am -
1 stop8h 16m
Deal found 8/6![Alaska Airlines logo]()
$439
This Booking.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:14 pm -
1 stop6h 47m
Thu 9/177:00 am -
1 stop8h 16m
Deal found 8/11![Alaska Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:03 pm -
1 stop6h 28m
Sat 10/312:55 pm -
2 stops8h 48m
Deal found 8/8![Delta logo]()
$461
This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:14 pm -
1 stop6h 47m
Sat 9/197:00 am -
1 stop8h 16m
Deal found 8/11![Alaska Airlines logo]()
$469
This Booking.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:00 am -
1 stop5h 24m
Fri 12/44:13 pm -
2 stops26h 29m
Deal found 8/10![Alaska Airlines logo]()
$481
This Priceline deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:14 pm -
1 stop6h 47m
Mon 9/287:00 am -
1 stop8h 16m
Deal found 8/10![Alaska Airlines logo]()
$489
This Booking.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:59 pm -
1 stop26h 02m
Sun 9/277:00 am -
1 stop5h 16m
Deal found 8/8![Alaska Airlines logo]()
$491
Best flights from Ontario to MissoulaDiscover carefully curated flight deals from Ontario to Missoula that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
Discover carefully curated flight deals from Ontario to Missoula that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/67:30 am -
1 stop5h 06m
Thu 1/71:15 pm -
1 stop5h 00m
Deal found 8/7![Alaska Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:03 pm -
1 stop6h 28m
Sat 10/312:55 pm -
2 stops8h 48m
Deal found 8/8![Delta logo]()
$461
This Priceline deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:30 am -
1 stop5h 47m
Sat 9/197:00 am -
2 stops10h 10m
Deal found 8/6![Alaska Airlines logo]()
$496
This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:07 pm -
1 stop6h 54m
Sat 9/127:00 am -
1 stop5h 16m
Deal found 8/11![Alaska Airlines logo]()
$509
This Alaska Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:12 am -
2 stops7h 05m
Mon 9/287:00 am -
1 stop8h 16m
Deal found 8/10![Alaska Airlines logo]()
$516
This Alaska Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:14 pm -
1 stop6h 47m
Sun 9/207:00 am -
1 stop8h 16m
Deal found 8/10![Alaska Airlines logo]()
$534
This Alaska Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:14 pm -
1 stop6h 47m
Sun 9/137:00 am -
1 stop8h 16m
Deal found 8/9![Alaska Airlines logo]()
$534
This Alaska Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:12 am -
2 stops14h 47m
Mon 8/314:16 pm -
1 stop8h 08m
Deal found 8/6![Alaska Airlines logo]()
$541
This Alaska Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:00 pm -
1 stop10h 01m
Tue 9/87:00 am -
1 stop8h 16m
Deal found 8/8![Alaska Airlines logo]()
$584
Last-minute flights from Ontario to MissoulaDiscover last-minute flight deals from Ontario to Missoula. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Missoula. Data last updated August 12, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/122:05 pm -
1 stop7h 50m
Mon 8/175:00 pm -
1 stop7h 11m
Deal found 8/7![Alaska Airlines logo]()
$509
This Priceline deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:02 am -
1 stop8h 15m
Sat 9/197:00 am -
1 stop8h 16m
Deal found 8/6![Alaska Airlines logo]()
$439
This Booking.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:12 pm -
1 stop9h 49m
Tue 9/157:00 am -
1 stop8h 16m
Deal found 8/10![Alaska Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:30 pm -
1 stop5h 29m
Thu 9/179:49 pm -
1 stop10h 15m
Deal found 8/10![Multiple Airlines logo]()
$401
This Booking.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:14 pm -
1 stop6h 47m
Thu 9/177:00 am -
1 stop8h 16m
Deal found 8/11![Alaska Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:14 pm -
1 stop6h 47m
Sat 9/197:00 am -
1 stop8h 16m
Deal found 8/11![Alaska Airlines logo]()
$469
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:12 am -
2 stops14h 49m
Tue 10/203:49 pm -
2 stops25h 13m
Deal found 8/7![Alaska Airlines logo]()
$504
This Booking.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:59 pm -
1 stop26h 02m
Sun 9/277:00 am -
1 stop5h 16m
Deal found 8/8![Alaska Airlines logo]()
$491
This Priceline deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:14 pm -
1 stop6h 47m
Mon 9/287:00 am -
1 stop8h 16m
Deal found 8/10![Alaska Airlines logo]()
$489
One-way flights from Ontario to MissoulaSearch for one-way flight options from Ontario to Missoula. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
Search for one-way flight options from Ontario to Missoula. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:05 pm -
3 stops46h 18m
Deal found 8/7![Multiple Airlines logo]()
$174
This Trip.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:13 pm -
1 stop6h 51m
Deal found 8/9![Alaska Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:15 am -
1 stop8h 47m
Deal found 8/6![Multiple Airlines logo]()
$208
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:03 am -
1 stop6h 16m
Deal found 8/8![United Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:05 pm -
3 stops39h 12m
Deal found 8/10![Multiple Airlines logo]()
$216
This Priceline deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:14 pm -
1 stop6h 47m
Deal found 8/10![Alaska Airlines logo]()
$225
This American Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:29 pm -
2 stops19h 49m
Deal found 8/7![American Airlines logo]()
$228
This Booking.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:14 pm -
1 stop6h 47m
Deal found 8/11![Alaska Airlines logo]()
$235
This Delta deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:15 pm -
1 stop6h 03m
Deal found 8/8![Delta logo]()
$250
This Priceline deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:05 pm -
1 stop7h 50m
Deal found 8/10![Alaska Airlines logo]()
$255
Find flight deals from Ontario to Missoula
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Missoula (MSO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $401 (Kiwi.com) |
One-way from | $174 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $555 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Missoula that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 12, 2026.
Use the filters below to find and compare flights from Ontario to Missoula that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Wed 1/6
7:30 am-1:36 pm
1 stop5h 06m
Missoula Johnson-Bell Field
Thu 1/7
1:15 pm-5:15 pm
1 stop5h 00m
$429
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Tue 10/27
5:03 pm-12:31 am
1 stop6h 28m
Missoula Johnson-Bell Field
Sat 10/31
2:55 pm-10:43 pm
2 stops8h 48m
$461
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Tue 9/8
8:30 am-3:17 pm
1 stop5h 47m
Missoula Johnson-Bell Field
Sat 9/19
7:00 am-4:10 pm
2 stops10h 10m
$496
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Sat 9/5
3:07 pm-11:01 pm
1 stop6h 54m
Missoula Johnson-Bell Field
Sat 9/12
7:00 am-11:16 am
1 stop5h 16m
$509
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Sat 9/26
7:12 am-3:17 pm
2 stops7h 05m
Missoula Johnson-Bell Field
Mon 9/28
7:00 am-2:16 pm
1 stop8h 16m
$516
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Thu 9/17
3:14 pm-11:01 pm
1 stop6h 47m
Missoula Johnson-Bell Field
Sun 9/20
7:00 am-2:16 pm
1 stop8h 16m
$534
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Thu 9/10
3:14 pm-11:01 pm
1 stop6h 47m
Missoula Johnson-Bell Field
Sun 9/13
7:00 am-2:16 pm
1 stop8h 16m
$534
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Thu 8/27
7:12 am-10:59 pm
2 stops14h 47m
Missoula Johnson-Bell Field
Mon 8/31
4:16 pm-11:24 pm
1 stop8h 08m
$541
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Sun 9/6
12:00 pm-11:01 pm
1 stop10h 01m
Missoula Johnson-Bell Field
Tue 9/8
7:00 am-2:16 pm
1 stop8h 16m
$584
Cheapest one-way
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Tue 11/17
6:00 am-12:44 pm
1 stop5h 44m
$215
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Ontario to Missoula
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Missoula in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Missoula flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Missoula flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Missoula flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Missoula flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Missoula flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Missoula
Have a flexible travel schedule? Discover the best time to fly to Missoula from Ontario with our price prediction graph.
ONT-MSO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Missoula
Reviews of airlines servicing Missoula
Get insights into the airlines that provide service to Missoula. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missoula. Reviews last updated August 12, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines and Delta from Ontario to Missoula to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from Ontario to Missoula. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Ontario to Missoula
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Complete your trip
Complete your trip to Missoula by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Missoula by cabin class
Find flights from Ontario to Missoula, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Missoula
Explore flights to Missoula departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 12, 2026.
Ontario and Missoula flights
Browse other Ontario and Missoula flight options. Last updated on August 12, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on August 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Ontario to Missoula
Discover the top 2 airlines that operate flights from Ontario to Missoula. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$182 | Average$429 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$260 | Average$364 | FlexibilityNo cancel fee | On-timeN/A |