$106+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — ONT
May 9 — May 161
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 9, 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 9, 2026.
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:10 pm
MSO
- ONT
1 stop6h 34m
Delta
Tue 8/255:05 pm
ONT
- MSO
1 stop6h 19m
Delta
Deal found 4/6![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:30 am
MSO
- ONT
1 stop4h 23m
Delta
Tue 5/129:50 am
ONT
- MSO
1 stop6h 34m
Delta
Deal found 4/7![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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 5/67:00 am
MSO
- ONT
1 stop8h 30m
Alaska Airlines
Mon 5/116:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$330
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Tue 5/123:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Wed 6/105:54 pm
ONT
- MSO
1 stop5h 02m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:20 am
MSO
- ONT
2 stops9h 19m
Delta
Mon 5/114:57 pm
ONT
- MSO
1 stop6h 25m
Delta
Deal found 4/7![Delta logo]()
$355
This CheapOair deal was found by Cheapflights users on 4/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:13 pm
MSO
- ONT
1 stop8h 11m
Alaska Airlines
Fri 9/253:09 pm
ONT
- MSO
1 stop6h 33m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$380
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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.
Mon 10/264:13 pm
MSO
- ONT
1 stop7h 26m
Alaska Airlines
Thu 10/296:00 am
ONT
- MSO
1 stop5h 32m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Thu 4/233:55 pm
MSO
- ONT
1 stop9h 04m
Alaska Airlines
Mon 4/2710:39 am
ONT
- MSO
1 stop12h 11m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Fri 5/13:55 pm
MSO
- ONT
1 stop23h 37m
Alaska Airlines
Mon 5/47:59 pm
ONT
- MSO
1 stop18h 00m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$393
This CheapOair deal was found by Cheapflights users on 4/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/33:55 pm
MSO
- ONT
1 stop9h 04m
Alaska Airlines
Fri 5/87:59 pm
ONT
- MSO
1 stop15h 29m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$394
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 9, 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 9, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Fri 5/13:55 pm
MSO
- ONT
1 stop18h 50m
Alaska Airlines
Mon 5/47:59 pm
ONT
- MSO
1 stop18h 00m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:20 am
MSO
- ONT
2 stops9h 19m
Delta
Mon 5/111:35 pm
ONT
- MSO
2 stops9h 47m
Delta
Deal found 4/7![Delta logo]()
$436
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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 5/63:55 pm
MSO
- ONT
2 stops8h 53m
Alaska Airlines
Mon 5/113:26 pm
ONT
- MSO
1 stop7h 24m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 4/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:02 pm
MSO
- ONT
1 stop4h 56m
Alaska Airlines
Thu 5/286:00 am
ONT
- MSO
1 stop7h 43m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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.
Fri 5/228:02 pm
MSO
- ONT
1 stop4h 56m
Alaska Airlines
Sun 5/246:00 am
ONT
- MSO
1 stop5h 16m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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 5/218:02 pm
MSO
- ONT
1 stop4h 56m
Alaska Airlines
Tue 5/264:03 pm
ONT
- MSO
1 stop6h 56m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Wed 5/137:45 am
MSO
- ONT
2 stops10h 32m
Alaska Airlines
Wed 6/105:54 pm
ONT
- MSO
1 stop5h 02m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$416
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Thu 6/115:00 pm
MSO
- ONT
1 stop7h 11m
Alaska Airlines
Wed 6/175:54 pm
ONT
- MSO
1 stop5h 02m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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 6/48:02 pm
MSO
- ONT
1 stop4h 56m
Alaska Airlines
Sun 6/76:00 am
ONT
- MSO
1 stop5h 16m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$451
This Alaska Airlines deal was found by Cheapflights users on 4/4. 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 4/301:59 pm
MSO
- ONT
1 stop6h 06m
Alaska Airlines
Wed 5/66:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 4/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:00 pm
MSO
- ONT
1 stop7h 11m
Alaska Airlines
Wed 8/122:05 pm
ONT
- MSO
1 stop7h 50m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$459
Last-minute flights from Missoula to OntarioDiscover last-minute flight deals from Missoula to Ontario. Data last updated April 9, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to Ontario. Data last updated April 9, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Thu 4/233:55 pm
MSO
- ONT
1 stop9h 04m
Alaska Airlines
Mon 4/2710:39 am
ONT
- MSO
1 stop12h 11m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Fri 5/13:55 pm
MSO
- ONT
1 stop23h 37m
Alaska Airlines
Mon 5/47:59 pm
ONT
- MSO
1 stop18h 00m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$393
This CheapOair deal was found by Cheapflights users on 4/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/33:55 pm
MSO
- ONT
1 stop9h 04m
Alaska Airlines
Fri 5/87:59 pm
ONT
- MSO
1 stop15h 29m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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 5/67:00 am
MSO
- ONT
1 stop8h 30m
Alaska Airlines
Mon 5/116:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$330
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:20 am
MSO
- ONT
2 stops9h 19m
Delta
Mon 5/114:57 pm
ONT
- MSO
1 stop6h 25m
Delta
Deal found 4/7![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:30 am
MSO
- ONT
1 stop4h 23m
Delta
Tue 5/129:50 am
ONT
- MSO
1 stop6h 34m
Delta
Deal found 4/7![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Tue 5/123:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Wed 6/105:54 pm
ONT
- MSO
1 stop5h 02m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Wed 5/137:45 am
MSO
- ONT
2 stops10h 32m
Alaska Airlines
Wed 6/105:54 pm
ONT
- MSO
1 stop5h 02m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$416
This Alaska Airlines deal was found by Cheapflights users on 4/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:02 pm
MSO
- ONT
1 stop4h 56m
Alaska Airlines
Thu 5/286:00 am
ONT
- MSO
1 stop7h 43m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$409
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 9, 2026.
Search for one-way flight options from Missoula to Ontario. Find affordable one-way fares based on user searches. Data last updated April 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Mon 5/48:54 pm
MSO
- ONT
1 stop19h 50m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Fri 5/88:54 pm
MSO
- ONT
1 stop23h 38m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$147
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:18 pm
MSO
- ONT
1 stop6h 26m
Delta
Deal found 4/6![Delta logo]()
$151
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/61:40 pm
MSO
- ONT
2 stops9h 57m
Delta
Deal found 4/6![Delta logo]()
$156
This Delta deal was found by Cheapflights users on 4/8. 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.
Thu 5/145:30 am
MSO
- ONT
1 stop4h 23m
Delta
Deal found 4/8![Delta logo]()
$161
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:05 pm
MSO
- ONT
1 stop5h 40m
Delta
Deal found 4/6![Delta logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/711:48 am
MSO
- ONT
2 stops21h 01m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$174
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Fri 5/158:02 pm
MSO
- ONT
1 stop4h 56m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$205
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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $301 (Delta) |
One-way from | $106 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $495 |
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 9, 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
Fri 5/1
3:55 pm-9:45 am
1 stop18h 50m
Ontario
Mon 5/4
7:59 pm-2:59 pm
1 stop18h 00m
$393
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Wed 5/6
3:55 pm-11:48 pm
2 stops8h 53m
Ontario
Mon 5/11
3:26 pm-11:50 pm
1 stop7h 24m
$401
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 5/21
8:02 pm-11:58 pm
1 stop4h 56m
Ontario
Thu 5/28
6:00 am-2:43 pm
1 stop7h 43m
$409
Quickest round-trip
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Fri 5/22
8:02 pm-11:58 pm
1 stop4h 56m
Ontario
Sun 5/24
6:00 am-12:16 pm
1 stop5h 16m
$409
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 5/21
8:02 pm-11:58 pm
1 stop4h 56m
Ontario
Tue 5/26
4:03 pm-11:59 pm
1 stop6h 56m
$409
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Wed 5/13
7:45 am-5:17 pm
2 stops10h 32m
Ontario
Wed 6/10
5:54 pm-11:56 pm
1 stop5h 02m
$416
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 6/11
5:00 pm-11:11 pm
1 stop7h 11m
Ontario
Wed 6/17
5:54 pm-11:56 pm
1 stop5h 02m
$434
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Wed 5/6
5:20 am-1:39 pm
2 stops9h 19m
Ontario
Mon 5/11
1:35 pm-12:22 am
2 stops9h 47m
$436
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 6/4
8:02 pm-11:58 pm
1 stop4h 56m
Ontario
Sun 6/7
6:00 am-12:16 pm
1 stop5h 16m
$451
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 4/30
1:59 pm-7:05 pm
1 stop6h 06m
Ontario
Wed 5/6
6:00 am-12:28 pm
1 stop5h 28m
$459
Showing 1-10 of 22 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 $127). Flying from Missoula to Ontario in April is currently the most expensive (average of $255). 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 9, 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.
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
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
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 9, 2026.
Missoula and Ontario flights
Browse other Missoula and Ontario flight options. Last updated on April 9, 2026.
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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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$344 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$259 | Average$288 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$353 | FlexibilityNo cancel fee | On-time75% |