$87+ Cheap flights from Missoula to Ontario (MSO - ONT)
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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — ONT
May 1 — May 81
Round-trip
1 adult, Economy
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Find cheap flights from Missoula to Ontario with Cheapflights
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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
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Cheapest flights from Missoula to OntarioExplore the most affordable flight options available from Missoula to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.
Explore the most affordable flight options available from Missoula to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Mon 4/138:54 pm
MSO
- ONT
1 stop14h 50m
Multiple Airlines
Fri 4/1711:44 am
ONT
- MSO
1 stop7h 20m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Mon 5/118:54 pm
MSO
- ONT
1 stop19h 50m
Multiple Airlines
Sun 5/174:04 pm
ONT
- MSO
1 stop27h 00m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$225
This Delta deal was found by Cheapflights users on 3/27. 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 5/215:30 am
MSO
- ONT
1 stop4h 23m
Delta
Sun 5/245:55 pm
ONT
- MSO
1 stop4h 21m
Delta
Deal found 3/27![Delta logo]()
$300
This Delta deal was found by Cheapflights users on 3/29. 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.
Mon 10/125:40 am
MSO
- ONT
1 stop4h 27m
Delta
Mon 10/195:05 pm
ONT
- MSO
1 stop6h 26m
Delta
Deal found 3/29![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 3/29. 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.
Mon 10/125:40 am
MSO
- ONT
1 stop4h 27m
Delta
Tue 10/2011:55 am
ONT
- MSO
2 stops11h 36m
Delta
Deal found 3/29![Delta logo]()
$306
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Mon 4/272:38 pm
MSO
- ONT
1 stop6h 58m
United Airlines
Mon 5/45:00 am
ONT
- MSO
1 stop7h 35m
United Airlines
Deal found 3/29![United Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/253:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Wed 4/296:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 3/29. 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.
Mon 10/125:40 am
MSO
- ONT
1 stop4h 27m
Delta
Wed 10/212:00 pm
ONT
- MSO
2 stops9h 31m
Delta
Deal found 3/29![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 3/27. 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 5/22:37 pm
MSO
- ONT
1 stop6h 59m
United Airlines
Sat 5/91:40 pm
ONT
- MSO
1 stop6h 50m
United Airlines
Deal found 3/27![United Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 3/29. 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.
Mon 10/126:10 pm
MSO
- ONT
1 stop6h 38m
Delta
Fri 10/239:55 am
ONT
- MSO
1 stop6h 32m
Delta
Deal found 3/29![Delta logo]()
$351
Best flights from Missoula to OntarioDiscover carefully curated flight deals from Missoula to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2026.
Discover carefully curated flight deals from Missoula to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Mon 5/118:54 pm
MSO
- ONT
1 stop19h 50m
Multiple Airlines
Sun 5/174:04 pm
ONT
- MSO
1 stop27h 00m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$225
This Delta deal was found by Cheapflights users on 3/29. 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 5/216:05 pm
MSO
- ONT
1 stop6h 29m
Delta
Sun 5/245:55 pm
ONT
- MSO
1 stop4h 21m
Delta
Deal found 3/29![Delta logo]()
$301
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Mon 4/272:38 pm
MSO
- ONT
1 stop6h 58m
United Airlines
Mon 5/45:00 am
ONT
- MSO
1 stop7h 35m
United Airlines
Deal found 3/29![United Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 4/283:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Mon 5/46:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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.
Sat 5/232:03 pm
MSO
- ONT
1 stop5h 59m
Alaska Airlines
Wed 5/274:03 pm
ONT
- MSO
1 stop6h 56m
Alaska Airlines
Deal found 3/31![Alaska Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 5/206:15 am
MSO
- ONT
1 stop7h 23m
United Airlines
Mon 5/255:00 am
ONT
- MSO
1 stop7h 24m
United Airlines
Deal found 3/27![United Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/253:55 pm
MSO
- ONT
2 stops8h 53m
Alaska Airlines
Wed 4/296:00 am
ONT
- MSO
1 stop7h 59m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 3/27. 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 5/231:14 pm
MSO
- ONT
2 stops10h 20m
Delta
Thu 5/284:57 pm
ONT
- MSO
1 stop6h 25m
Delta
Deal found 3/27![Delta logo]()
$422
This CheapOair deal was found by Cheapflights users on 3/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Fri 5/157:41 pm
ONT
- MSO
1 stop15h 35m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 3/28. 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 5/232:26 pm
MSO
- ONT
1 stop7h 16m
United Airlines
Wed 5/275:00 am
ONT
- MSO
1 stop7h 24m
United Airlines
Deal found 3/28![United Airlines logo]()
$441
Last-minute flights from Missoula to OntarioDiscover last-minute flight deals from Missoula to Ontario. Data last updated April 1, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to Ontario. Data last updated April 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Mon 4/138:54 pm
MSO
- ONT
1 stop14h 50m
Multiple Airlines
Fri 4/1711:44 am
ONT
- MSO
1 stop7h 20m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$202
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 4/132:38 pm
MSO
- ONT
1 stop6h 58m
United Airlines
Thu 4/161:34 pm
ONT
- MSO
1 stop6h 56m
United Airlines
Deal found 3/27![United Airlines logo]()
$442
This Delta deal was found by Cheapflights users on 3/31. 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.
Wed 4/156:18 pm
MSO
- ONT
1 stop6h 26m
Delta
Sun 4/196:00 am
ONT
- MSO
1 stop6h 22m
Delta
Deal found 3/31![Delta logo]()
$462
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Fri 4/242:38 pm
MSO
- ONT
1 stop6h 58m
United Airlines
Sun 4/265:10 am
ONT
- MSO
1 stop7h 22m
United Airlines
Deal found 3/31![United Airlines logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/253:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Wed 4/296:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Mon 4/272:38 pm
MSO
- ONT
1 stop6h 58m
United Airlines
Mon 5/45:00 am
ONT
- MSO
1 stop7h 35m
United Airlines
Deal found 3/29![United Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Mon 4/278:54 pm
MSO
- ONT
1 stop22h 55m
Multiple Airlines
Sun 5/312:59 am
ONT
- MSO
2 stops18h 05m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$378
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 4/283:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Mon 5/46:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/301:59 pm
MSO
- ONT
1 stop6h 06m
Alaska Airlines
Wed 5/66:00 am
ONT
- MSO
1 stop7h 59m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$461
One-way flights from Missoula to OntarioSearch for one-way flight options from Missoula to Ontario. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
Search for one-way flight options from Missoula to Ontario. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Mon 4/138:54 pm
MSO
- ONT
1 stop14h 50m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$87
This Delta deal was found by Cheapflights users on 3/28. 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.
Wed 5/205:30 am
MSO
- ONT
1 stop4h 23m
Delta
Deal found 3/28![Delta logo]()
$151
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/93:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Sun 4/1211:48 am
MSO
- ONT
2 stops33h 19m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/108:54 pm
MSO
- ONT
1 stop15h 45m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$202
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 5/158:02 pm
MSO
- ONT
1 stop4h 56m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Sat 4/118:00 pm
MSO
- ONT
3 stops37h 04m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$210
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 4/72:38 pm
MSO
- ONT
1 stop6h 58m
United Airlines
Deal found 3/31![United Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Mon 4/64:05 pm
MSO
- ONT
2 stops29h 26m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$244
Find flight deals from Missoula to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to Ontario (ONT). 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 April 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $202 (Kiwi.com) |
One-way from | $87 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $416 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missoula to Ontario 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 April 1, 2026.
Use the filters below to find and compare flights from Missoula to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Mon 5/11
8:54 pm-3:44 pm
1 stop19h 50m
Ontario
Sun 5/17
4:04 pm-8:04 pm
1 stop27h 00m
$225
Quickest round-trip
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 5/21
6:05 pm-11:34 pm
1 stop6h 29m
Ontario
Sun 5/24
5:55 pm-11:16 pm
1 stop4h 21m
$301
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Mon 4/27
2:38 pm-8:36 pm
1 stop6h 58m
Ontario
Mon 5/4
5:00 am-1:35 pm
1 stop7h 35m
$311
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Tue 4/28
3:55 pm-10:32 pm
1 stop7h 37m
Ontario
Mon 5/4
6:00 am-12:28 pm
1 stop5h 28m
$355
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Sat 5/23
2:03 pm-7:02 pm
1 stop5h 59m
Ontario
Wed 5/27
4:03 pm-11:59 pm
1 stop6h 56m
$355
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Sat 4/25
3:55 pm-11:48 pm
2 stops8h 53m
Ontario
Wed 4/29
6:00 am-2:59 pm
1 stop7h 59m
$377
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Wed 5/20
6:15 am-12:38 pm
1 stop7h 23m
Ontario
Mon 5/25
5:00 am-1:24 pm
1 stop7h 24m
$382
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Tue 5/12
3:55 pm-10:32 pm
1 stop7h 37m
Ontario
Fri 5/15
7:41 pm-12:16 pm
1 stop15h 35m
$389
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Sat 5/23
1:14 pm-10:34 pm
2 stops10h 20m
Ontario
Thu 5/28
4:57 pm-12:22 am
1 stop6h 25m
$422
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Sat 5/23
2:26 pm-8:42 pm
1 stop7h 16m
Ontario
Wed 5/27
5:00 am-1:24 pm
1 stop7h 24m
$441
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Missoula to Ontario
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 Missoula to Ontario in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Missoula-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Missoula-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Missoula-Ontario 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 Missoula-Ontario 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 Missoula to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Missoula with our price prediction graph.
MSO-ONT
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 Missoula to Ontario
Prices
More
What is the cheapest month to book a flight from Missoula to Ontario?
Currently, August is the cheapest month in which you can book a flight from Missoula to Ontario (average of $129). Flying from Missoula to Ontario in December is currently the most expensive (average of $248). 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 Missoula to Ontario?
What’s the top layover airport for flights from Missoula to Ontario?
Share of 1-stop round-trip flights from Missoula to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 67% of 1-stop itineraries from Missoula to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from Missoula to Ontario?
Average round-trip fare for 1-stop flights from Missoula to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $273.
What’s the fastest layover option from Missoula to Ontario?
Shortest average travel time for 1-stop one-way flights from Missoula to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 21m.
Which airport typically offers the quickest layover for flights from Missoula to Ontario?
Average layover duration for 1-stop one-way flights from Missoula to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 2h 52m.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 1, 2026.
Read through reviews of airlines operating flights from Missoula to Ontario, such as Alaska Airlines,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Missoula to Ontario. 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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Other flights to Ontario
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Top 3 airlines flying from Missoula to Ontario
Discover the top 3 airlines that operate flights from Missoula to Ontario. 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 April 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$340 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$259 | Average$288 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$353 | FlexibilityNo cancel fee | On-time75% |