$225+ Cheap flights from Ontario to Missoula (ONT - MSO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSO
Oct 5 — Oct 121
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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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 September 5, 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 September 5, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 11/76:00 am -
1 stop14h 18m
Wed 11/114:21 pm -
1 stop26h 56m
Deal found 9/4![Alaska Airlines logo]()
$403
This Booking.com deal was found by Cheapflights users on 9/4. 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 10/232:13 pm -
1 stop23h 37m
Fri 10/302:06 pm -
1 stop10h 36m
Deal found 9/4![Alaska Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 10/18:00 am -
1 stop4h 50m
Thu 10/810:17 am -
1 stop7h 13m
Deal found 8/31![Multiple Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 9/4. 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.
Sat 10/176:00 am -
1 stop5h 34m
Mon 10/196:23 pm -
1 stop6h 32m
Deal found 9/4![Delta logo]()
$469
This Booking.com deal was found by Cheapflights users on 9/5. 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 11/214:01 pm -
1 stop5h 59m
Fri 11/277:00 am -
1 stop17h 31m
Deal found 9/5![Alaska Airlines logo]()
$471
This Delta deal was found by Cheapflights users on 9/2. 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 10/96:00 am -
1 stop5h 34m
Mon 10/125:30 am -
1 stop4h 25m
Deal found 9/2![Delta logo]()
$474
This Booking.com deal was found by Cheapflights users on 9/2. 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 10/2211:13 am -
1 stop9h 51m
Tue 10/277:03 am -
2 stops11h 02m
Deal found 9/2![Alaska Airlines logo]()
$476
This Booking.com deal was found by Cheapflights users on 8/31. 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 11/44:06 pm -
2 stops19h 16m
Mon 11/91:02 pm -
1 stop5h 01m
Deal found 8/31![Alaska Airlines logo]()
$481
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 September 5, 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 September 5, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 11/76:00 am -
1 stop14h 18m
Wed 11/114:21 pm -
1 stop26h 56m
Deal found 9/4![Alaska Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 8/31. 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 10/95:03 pm -
1 stop6h 28m
Sun 10/115:30 am -
1 stop4h 25m
Deal found 8/31![Delta logo]()
$449
This Booking.com deal was found by Cheapflights users on 8/31. 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 11/44:09 pm -
1 stop19h 13m
Mon 11/91:02 pm -
1 stop5h 01m
Deal found 8/31![Alaska Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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 10/82:13 pm -
1 stop6h 51m
Sat 10/107:03 am -
1 stop7h 13m
Deal found 9/1![Alaska Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 10/297:25 am -
1 stop5h 01m
Sun 11/154:21 pm -
2 stops25h 42m
Deal found 9/4![Alaska Airlines logo]()
$496
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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 9/133:14 pm -
1 stop6h 47m
Wed 9/162:05 pm -
1 stop5h 58m
Deal found 8/31![Alaska Airlines logo]()
$529
Last-minute flights from Ontario to MissoulaDiscover last-minute flight deals from Ontario to Missoula. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Missoula. Data last updated September 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 10/18:00 am -
1 stop4h 50m
Thu 10/810:17 am -
1 stop7h 13m
Deal found 8/31![Multiple Airlines logo]()
$422
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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 10/13:14 pm -
1 stop6h 47m
Mon 10/57:03 am -
1 stop28h 14m
Deal found 9/1![Alaska Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/15:00 am -
1 stop7h 32m
Tue 10/64:15 pm -
1 stop5h 16m
Deal found 9/2![United Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 9/4. 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.
Thu 10/15:15 pm -
1 stop6h 03m
Mon 10/56:17 pm -
1 stop6h 30m
Deal found 9/4![Delta logo]()
$509
This Delta deal was found by Cheapflights users on 8/31. 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 10/95:03 pm -
1 stop6h 28m
Sun 10/115:30 am -
1 stop4h 25m
Deal found 8/31![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 9/2. 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 10/96:00 am -
1 stop5h 34m
Mon 10/125:30 am -
1 stop4h 25m
Deal found 9/2![Delta logo]()
$474
This Delta deal was found by Cheapflights users on 9/4. 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.
Sat 10/176:00 am -
1 stop5h 34m
Mon 10/196:23 pm -
1 stop6h 32m
Deal found 9/4![Delta logo]()
$469
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Tue 10/206:02 am -
1 stop7h 48m
Mon 10/267:03 am -
2 stops11h 02m
Deal found 9/3![Alaska Airlines logo]()
$496
This Booking.com deal was found by Cheapflights users on 9/2. 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 10/2211:13 am -
1 stop9h 51m
Tue 10/277:03 am -
2 stops11h 02m
Deal found 9/2![Alaska Airlines logo]()
$476
This Booking.com deal was found by Cheapflights users on 9/4. 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 10/232:13 pm -
1 stop23h 37m
Fri 10/302:06 pm -
1 stop10h 36m
Deal found 9/4![Alaska Airlines logo]()
$408
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 September 5, 2026.
Search for one-way flight options from Ontario to Missoula. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This Priceline deal was found by Cheapflights users on 8/31. 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 10/306:02 am -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Alaska Airlines logo]()
$225
This Booking.com deal was found by Cheapflights users on 9/3. 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 11/65:59 pm -
1 stop18h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Alaska Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 8/31. 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.
Fri 10/3012:01 pm -
2 stops51h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Multiple Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Thu 10/291:32 pm -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![United Airlines logo]()
$258
This KAYAK deal was found by Cheapflights users on 9/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:02 am -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Alaska Airlines logo]()
$260
This Priceline deal was found by Cheapflights users on 9/2. 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 9/143:14 pm -
1 stop6h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Alaska Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 9/171:18 pm -
1 stop7h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 8/31. 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.
Thu 10/296:00 am -
1 stop5h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Delta logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Fri 10/98:35 pm -
2 stops42h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$298
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 11/215:00 am -
1 stop7h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$303
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 September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $403 (Alaska Airlines) |
One-way from | $225 (Priceline) |
Popular in | August |
Cheapest in | February |
Average price | $455 |
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 7,457,451 searches. Data last updated September 5, 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
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Fri 10/30
6:02 am-12:26 pm
1 stop5h 24m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$225
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Fri 11/6
5:59 pm-1:22 pm
1 stop18h 23m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$230
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Fri 10/30
12:01 pm-4:53 pm
2 stops51h 52m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$235
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Thu 10/29
1:32 pm-9:47 pm
1 stop7h 15m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$258
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Thu 10/8
6:02 am-12:26 pm
1 stop5h 24m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$260
Quickest round-trip
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Sat 9/19
5:15 pm-11:13 pm
1 stop4h 58m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$265
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Fri 9/18
9:52 am-5:37 pm
1 stop6h 45m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$265
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Mon 9/14
3:14 pm-11:01 pm
1 stop6h 47m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$265
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Thu 9/17
1:18 pm-9:34 pm
1 stop7h 16m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$275
OntarioMissoula
ONT Ontario - MSO Missoula Johnson-Bell Field
ONTMSO
Ontario
Thu 10/29
6:00 am-12:34 pm
1 stop5h 34m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$290
Showing 1-10 of 16 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 September.
| 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
What is the cheapest month to book a flight from Ontario to Missoula?
Currently, February is the cheapest month in which you can book a flight from Ontario to Missoula (average of $294). Flying from Ontario to Missoula in August is currently the most expensive (average of $690). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Missoula?
Airfare is typical for this route at the moment.
Ontario to Missoula flights typically cost between $350 and $470 in November.The cheapest round-trip price found within the last 5 days was $403 on Alaska Airlines (Nov 7-Nov 11).
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 September 5, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andUnited Airlines 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.
Comfort
7.8
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Food
7.0
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
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.
Browse thousands of different options on Cheapflights for your next trip
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 September 5, 2026.
Ontario and Missoula flights
Browse other Ontario and Missoula flight options. Last updated on September 5, 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 September 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Ontario to Missoula
Discover the top 3 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 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$182 | Average$429 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$239 | Average$554 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$260 | Average$364 | FlexibilityNo cancel fee | On-timeN/A |