$156+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSO
Apr 15 — Apr 221
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
Last-minute
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 March 16, 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 March 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 5/56:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Sat 5/93:55 pm
MSO
- ONT
1 stop18h 50m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$265
This Expedia deal was found by Cheapflights users on 3/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:33 am
ONT
- MSO
1 stop12h 24m
Alaska Airlines
Tue 4/144:23 pm
MSO
- ONT
1 stop8h 36m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 3/16. 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 4/2811:53 am
ONT
- MSO
2 stops11h 23m
Delta
Wed 5/135:30 am
MSO
- ONT
1 stop4h 23m
Delta
Deal found 3/16![Delta logo]()
$282
This Delta deal was found by Cheapflights users on 3/15. 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 4/76:00 am
ONT
- MSO
1 stop5h 16m
Delta
Tue 4/141:40 pm
MSO
- ONT
2 stops9h 57m
Delta
Deal found 3/15![Delta logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 11/47:30 am
ONT
- MSO
1 stop5h 06m
Alaska Airlines
Wed 11/44:13 pm
MSO
- ONT
1 stop7h 26m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 3/16. 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 7/75:05 pm
ONT
- MSO
1 stop6h 19m
Delta
Wed 7/225:40 am
MSO
- ONT
1 stop4h 21m
Delta
Deal found 3/16![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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 5/93:26 pm
ONT
- MSO
1 stop7h 24m
Alaska Airlines
Mon 6/157:00 am
MSO
- ONT
1 stop7h 13m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$334
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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 9/146:00 am
ONT
- MSO
1 stop5h 32m
Alaska Airlines
Mon 9/144:13 pm
MSO
- ONT
1 stop7h 26m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 4/166:00 am
ONT
- MSO
1 stop16h 57m
Alaska Airlines
Sun 4/197:00 am
MSO
- ONT
1 stop27h 39m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$343
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 March 16, 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 March 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 5/56:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Sat 5/93:55 pm
MSO
- ONT
1 stop18h 50m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 3/16. 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 7/75:05 pm
ONT
- MSO
1 stop6h 19m
Delta
Thu 7/235:40 am
MSO
- ONT
1 stop4h 21m
Delta
Deal found 3/16![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 5/56:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Wed 5/63:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 3/16. 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 7/95:05 pm
ONT
- MSO
1 stop6h 19m
Delta
Wed 7/225:40 am
MSO
- ONT
1 stop4h 21m
Delta
Deal found 3/16![Delta logo]()
$346
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 6/24:03 pm
ONT
- MSO
1 stop6h 56m
Alaska Airlines
Tue 6/167:00 am
MSO
- ONT
1 stop5h 14m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$321
This Delta deal was found by Cheapflights users on 3/15. 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 9/79:55 am
ONT
- MSO
1 stop6h 28m
Delta
Sat 9/1212:50 pm
MSO
- ONT
1 stop4h 24m
Delta
Deal found 3/15![Delta logo]()
$365
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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 9/124:00 pm
ONT
- MSO
1 stop7h 19m
Alaska Airlines
Mon 9/144:13 pm
MSO
- ONT
1 stop7h 26m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 3/15. 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 9/1211:55 am
ONT
- MSO
2 stops10h 19m
Delta
Mon 9/145:40 am
MSO
- ONT
1 stop4h 21m
Delta
Deal found 3/15![Delta logo]()
$370
Last-minute flights from Ontario to MissoulaDiscover last-minute flight deals from Ontario to Missoula. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Missoula. Data last updated March 16, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 3/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:00 am
ONT
- MSO
1 stop5h 31m
Alaska Airlines
Tue 3/311:53 pm
MSO
- ONT
1 stop5h 20m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$431
This Expedia deal was found by Cheapflights users on 3/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:33 am
ONT
- MSO
1 stop12h 24m
Alaska Airlines
Tue 4/144:23 pm
MSO
- ONT
1 stop8h 36m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 3/15. 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 4/76:00 am
ONT
- MSO
1 stop5h 16m
Delta
Tue 4/141:40 pm
MSO
- ONT
2 stops9h 57m
Delta
Deal found 3/15![Delta logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 4/96:00 am
ONT
- MSO
1 stop5h 31m
Alaska Airlines
Mon 4/131:11 pm
MSO
- ONT
1 stop4h 58m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 4/146:00 am
ONT
- MSO
1 stop5h 31m
Alaska Airlines
Thu 4/167:00 am
MSO
- ONT
1 stop17h 59m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$392
This Expedia deal was found by Cheapflights users on 3/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1510:33 am
ONT
- MSO
1 stop12h 24m
Alaska Airlines
Wed 4/223:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 4/166:00 am
ONT
- MSO
1 stop16h 57m
Alaska Airlines
Sun 4/197:00 am
MSO
- ONT
1 stop27h 39m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 3/15. 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 4/255:59 pm
ONT
- MSO
1 stop4h 12m
Delta
Mon 4/276:18 pm
MSO
- ONT
1 stop6h 26m
Delta
Deal found 3/15![Delta logo]()
$411
This Delta deal was found by Cheapflights users on 3/16. 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 4/2811:53 am
ONT
- MSO
2 stops11h 23m
Delta
Wed 5/135:30 am
MSO
- ONT
1 stop4h 23m
Delta
Deal found 3/16![Delta logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 4/282:59 pm
ONT
- MSO
2 stops23h 00m
Alaska Airlines
Wed 5/137:45 am
MSO
- ONT
2 stops12h 23m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$400
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 4/296:00 am
ONT
- MSO
1 stop7h 59m
Alaska Airlines
Mon 5/113:55 pm
MSO
- ONT
1 stop9h 04m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$385
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 March 16, 2026.
Search for one-way flight options from Ontario to Missoula. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
This Delta deal was found by Cheapflights users on 3/16. 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 4/65:09 pm
ONT
- MSO
1 stop6h 15m
Delta
Deal found 3/16![Delta logo]()
$156
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 6/94:03 pm
ONT
- MSO
1 stop6h 56m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$161
This Delta deal was found by Cheapflights users on 3/15. 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 5/214:57 pm
ONT
- MSO
1 stop6h 25m
Delta
Deal found 3/15![Delta logo]()
$186
This Alaska Airlines deal was found by Cheapflights users on 3/13. 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 4/16:00 am
ONT
- MSO
1 stop5h 31m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$191
This United Airlines deal was found by Cheapflights users on 3/14. 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 7/75:00 am
ONT
- MSO
1 stop7h 19m
United Airlines
Deal found 3/14![United Airlines logo]()
$196
This Delta deal was found by Cheapflights users on 3/15. 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 9/125:05 pm
ONT
- MSO
1 stop5h 09m
Delta
Deal found 3/15![Delta logo]()
$205
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 4/96:00 am
ONT
- MSO
1 stop5h 31m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Sun 8/165:00 am
ONT
- MSO
1 stop7h 27m
United Airlines
Deal found 3/12![United Airlines logo]()
$216
This Delta deal was found by Cheapflights users on 3/16. 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.
Sun 4/55:09 pm
ONT
- MSO
1 stop6h 15m
Delta
Deal found 3/16![Delta logo]()
$221
This Trip.com deal was found by Cheapflights users on 3/12. 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.
Tue 3/246:00 am
ONT
- MSO
1 stop5h 31m
Hawaiian Airlines
Deal found 3/12![Hawaiian Airlines logo]()
$224
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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 9/44:00 pm
ONT
- MSO
1 stop7h 19m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$230
This Delta deal was found by Cheapflights users on 3/13. 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 3/245:09 pm
ONT
- MSO
1 stop6h 15m
Delta
Deal found 3/13![Delta logo]()
$241
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 March 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $265 (Alaska Airlines) |
One-way from | $156 (Delta) |
Popular in | December |
Cheapest in | October |
Average price | $536 |
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 March 16, 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 - MSO
ONTMSO
Ontario
Tue 5/5
6:00 am-12:28 pm
1 stop5h 28m
Missoula Johnson-Bell Field
Sat 5/9
3:55 pm-9:45 am
1 stop18h 50m
$265
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Tue 5/5
6:00 am-12:28 pm
1 stop5h 28m
Missoula Johnson-Bell Field
Wed 5/6
3:55 pm-10:32 pm
1 stop7h 37m
$277
Quickest round-trip
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Tue 7/7
5:05 pm-12:24 am
1 stop6h 19m
Missoula Johnson-Bell Field
Thu 7/23
5:40 am-9:01 am
1 stop4h 21m
$321
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Tue 6/2
4:03 pm-11:59 pm
1 stop6h 56m
Missoula Johnson-Bell Field
Tue 6/16
7:00 am-11:14 am
1 stop5h 14m
$321
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Thu 7/9
5:05 pm-12:24 am
1 stop6h 19m
Missoula Johnson-Bell Field
Wed 7/22
5:40 am-9:01 am
1 stop4h 21m
$346
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Mon 9/7
9:55 am-5:23 pm
1 stop6h 28m
Missoula Johnson-Bell Field
Sat 9/12
12:50 pm-4:14 pm
1 stop4h 24m
$365
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Sat 9/12
4:00 pm-12:19 am
1 stop7h 19m
Missoula Johnson-Bell Field
Mon 9/14
4:13 pm-10:39 pm
1 stop7h 26m
$365
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Sat 9/12
11:55 am-11:14 pm
2 stops10h 19m
Missoula Johnson-Bell Field
Mon 9/14
5:40 am-9:01 am
1 stop4h 21m
$370
Cheapest one-way
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Mon 4/6
5:09 pm-12:24 am
1 stop6h 15m
$156
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Wed 4/1
6:00 am-12:31 pm
1 stop5h 31m
$191
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 March.
| 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 March 16, 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
Overall
7.9
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
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Top 2 airlines flying from Ontario to Missoula
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$240 | Average$520 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$244 | Average$405 | FlexibilityNo cancel fee | On-time75% |