$122+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — ONT
Apr 1 — Apr 81
1 adult, Economy
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Find cheap flights from Missoula to Ontario 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 Missoula to Ontario
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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 March 2, 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 March 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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 6/48:02 pm
MSO
- ONT
1 stop4h 56m
Alaska Airlines
Wed 6/105:54 pm
ONT
- MSO
1 stop5h 05m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 3/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:04 pm
MSO
- ONT
1 stop6h 47m
Delta
Tue 3/315:09 pm
ONT
- MSO
1 stop6h 15m
Delta
Deal found 3/1![Delta logo]()
$277
This CheapOair deal was found by Cheapflights users on 2/26. 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.
Wed 4/154:23 pm
MSO
- ONT
1 stop8h 36m
Alaska Airlines
Sat 4/187:00 am
ONT
- MSO
1 stop5h 13m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$281
This CheapOair deal was found by Cheapflights users on 2/26. 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 5/43:55 pm
MSO
- ONT
1 stop9h 04m
Alaska Airlines
Fri 5/87:59 pm
ONT
- MSO
1 stop15h 29m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 2/27. 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.
Tue 4/76:04 pm
MSO
- ONT
1 stop6h 47m
Delta
Tue 4/145:05 pm
ONT
- MSO
1 stop6h 11m
Delta
Deal found 2/27![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 2/27. 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.
Tue 4/71:07 pm
MSO
- ONT
2 stops10h 27m
Delta
Wed 4/85:09 pm
ONT
- MSO
1 stop6h 15m
Delta
Deal found 2/27![Delta logo]()
$316
This United Airlines deal was found by Cheapflights users on 2/27. 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.
Thu 5/142:37 pm
MSO
- ONT
1 stop6h 59m
United Airlines
Sun 5/175:00 am
ONT
- MSO
1 stop7h 35m
United Airlines
Deal found 2/27![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 2/27. 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 4/96:04 pm
MSO
- ONT
1 stop6h 47m
Delta
Tue 4/145:05 pm
ONT
- MSO
1 stop6h 11m
Delta
Deal found 2/27![Delta logo]()
$320
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/174:20 pm
MSO
- ONT
1 stop7h 24m
Alaska Airlines
Wed 3/186:00 am
ONT
- MSO
1 stop5h 31m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$321
This Orbitz deal was found by Cheapflights users on 2/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:03 pm
MSO
- ONT
1 stop5h 44m
Alaska Airlines
Mon 6/84:03 pm
ONT
- MSO
1 stop6h 56m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 2/27. 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.
Tue 4/76:04 pm
MSO
- ONT
1 stop6h 47m
Delta
Thu 4/95:09 pm
ONT
- MSO
1 stop6h 15m
Delta
Deal found 2/27![Delta logo]()
$341
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 March 2, 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 March 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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.
Wed 7/297:00 am
MSO
- ONT
1 stop5h 14m
Alaska Airlines
Mon 8/32:09 pm
ONT
- MSO
1 stop7h 43m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$261
This United Airlines deal was found by Cheapflights users on 2/27. 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.
Thu 5/142:37 pm
MSO
- ONT
1 stop6h 59m
United Airlines
Sun 5/175:00 am
ONT
- MSO
1 stop7h 35m
United Airlines
Deal found 2/27![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 3/1. 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 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
Sun 5/179:50 am
ONT
- MSO
1 stop6h 34m
Delta
Deal found 3/1![Delta logo]()
$385
This CheapOair deal was found by Cheapflights users on 2/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:53 pm
MSO
- ONT
1 stop11h 06m
Alaska Airlines
Wed 4/223:26 pm
ONT
- MSO
1 stop7h 24m
Alaska Airlines
Deal found 2/28![Alaska Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 2/26. 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 5/212:26 pm
MSO
- ONT
1 stop7h 16m
United Airlines
Mon 5/255:00 am
ONT
- MSO
1 stop7h 24m
United Airlines
Deal found 2/26![United Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 2/27. 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.
Fri 6/55:30 am
MSO
- ONT
1 stop4h 23m
Delta
Mon 6/85:05 pm
ONT
- MSO
1 stop6h 19m
Delta
Deal found 2/27![Delta logo]()
$400
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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 5/143:39 pm
MSO
- ONT
1 stop9h 19m
Alaska Airlines
Sun 5/177:48 pm
ONT
- MSO
2 stops27h 11m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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.
Fri 6/53:39 pm
MSO
- ONT
2 stops19h 42m
Alaska Airlines
Tue 6/94:03 pm
ONT
- MSO
1 stop6h 56m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$408
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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 4/233:55 pm
MSO
- ONT
1 stop9h 04m
Alaska Airlines
Sun 4/2610:39 am
ONT
- MSO
1 stop27h 20m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$428
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 6/107:00 am
MSO
- ONT
1 stop5h 14m
Alaska Airlines
Sun 6/1410:54 am
ONT
- MSO
2 stops12h 05m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$438
Last-minute flights from Missoula to OntarioDiscover last-minute flight deals from Missoula to Ontario. Data last updated March 2, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to Ontario. Data last updated March 2, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 2/26. 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 3/16:10 pm
MSO
- ONT
1 stop6h 39m
Delta
Thu 3/56:00 am
ONT
- MSO
1 stop5h 26m
Delta
Deal found 2/26![Delta logo]()
$496
This Delta deal was found by Cheapflights users on 2/26. 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 3/66:10 pm
MSO
- ONT
1 stop6h 39m
Delta
Sat 3/76:00 am
ONT
- MSO
1 stop5h 26m
Delta
Deal found 2/26![Delta logo]()
$471
This United Airlines deal was found by Cheapflights users on 2/26. 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 3/66:15 am
MSO
- ONT
2 stops12h 26m
United Airlines
Sat 3/76:15 am
ONT
- MSO
1 stop5h 32m
United Airlines
Deal found 2/26![United Airlines logo]()
$476
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/96:23 am
MSO
- ONT
1 stop5h 45m
Alaska Airlines
Wed 3/116:14 am
ONT
- MSO
1 stop5h 07m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$421
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/174:20 pm
MSO
- ONT
1 stop7h 24m
Alaska Airlines
Wed 3/186:00 am
ONT
- MSO
1 stop5h 31m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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.
Sun 3/227:00 am
MSO
- ONT
1 stop27h 39m
Alaska Airlines
Thu 3/266:00 am
ONT
- MSO
1 stop5h 31m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$485
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/241:53 pm
MSO
- ONT
1 stop11h 06m
Alaska Airlines
Sat 3/286:00 am
ONT
- MSO
1 stop16h 57m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 3/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:04 pm
MSO
- ONT
1 stop6h 47m
Delta
Tue 3/315:09 pm
ONT
- MSO
1 stop6h 15m
Delta
Deal found 3/1![Delta logo]()
$277
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:00 am
MSO
- ONT
2 stops9h 42m
Alaska Airlines
Tue 3/317:08 pm
ONT
- MSO
1 stop19h 27m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 2/26. 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 3/256:15 am
MSO
- ONT
1 stop7h 33m
United Airlines
Fri 3/271:50 pm
ONT
- MSO
1 stop7h 07m
United Airlines
Deal found 2/26![United Airlines logo]()
$436
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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.
Fri 3/274:23 pm
MSO
- ONT
1 stop8h 36m
Alaska Airlines
Fri 4/36:00 am
ONT
- MSO
1 stop8h 35m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$418
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 March 2, 2026.
Search for one-way flight options from Missoula to Ontario. Find affordable one-way fares based on user searches. Data last updated March 2, 2026.
This Delta deal was found by Cheapflights users on 2/28. 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.
Tue 5/196:05 pm
MSO
- ONT
1 stop6h 29m
Delta
Deal found 2/28![Delta logo]()
$122
This Delta deal was found by Cheapflights users on 2/28. 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.
Mon 5/186:05 pm
MSO
- ONT
1 stop6h 29m
Delta
Deal found 2/28![Delta logo]()
$156
This Alaska Airlines deal was found by Cheapflights users on 2/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:23 am
MSO
- ONT
1 stop5h 45m
Alaska Airlines
Deal found 2/28![Alaska Airlines logo]()
$161
This Delta deal was found by Cheapflights users on 2/27. 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.
Sun 6/75:40 am
MSO
- ONT
1 stop4h 21m
Delta
Deal found 2/27![Delta logo]()
$175
This Delta deal was found by Cheapflights users on 2/28. 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.
Sun 5/176:05 pm
MSO
- ONT
1 stop6h 29m
Delta
Deal found 2/28![Delta logo]()
$188
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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.
Mon 4/64:23 pm
MSO
- ONT
2 stops26h 22m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$258
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:23 pm
MSO
- ONT
1 stop8h 36m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$259
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/274:23 pm
MSO
- ONT
1 stop8h 36m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$262
This CheapOair deal was found by Cheapflights users on 2/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:02 pm
MSO
- ONT
2 stops15h 19m
Alaska Airlines
Deal found 2/28![Alaska Airlines logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 2/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/287:00 am
MSO
- ONT
2 stops9h 24m
Alaska Airlines
Deal found 2/28![Alaska Airlines logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 2/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:41 pm
MSO
- ONT
2 stops18h 33m
Alaska Airlines
Deal found 2/28![Alaska Airlines logo]()
$283
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 March 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (Alaska Airlines) |
One-way from | $122 (Delta) |
Popular in | April |
Cheapest in | January |
Average price | $428 |
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 March 2, 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
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Wed 7/29
7:00 am-11:14 am
1 stop5h 14m
Ontario
Mon 8/3
2:09 pm-10:52 pm
1 stop7h 43m
$261
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 5/14
2:37 pm-8:36 pm
1 stop6h 59m
Ontario
Sun 5/17
5:00 am-1:35 pm
1 stop7h 35m
$319
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Sat 4/18
1:53 pm-11:59 pm
1 stop11h 06m
Ontario
Wed 4/22
3:26 pm-11:50 pm
1 stop7h 24m
$319
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 5/21
2:26 pm-8:42 pm
1 stop7h 16m
Ontario
Mon 5/25
5:00 am-1:24 pm
1 stop7h 24m
$381
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 5/14
5:30 am-8:53 am
1 stop4h 23m
Ontario
Sun 5/17
9:50 am-5:24 pm
1 stop6h 34m
$385
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Fri 6/5
5:30 am-8:53 am
1 stop4h 23m
Ontario
Mon 6/8
5:05 pm-12:24 am
1 stop6h 19m
$400
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 5/14
3:39 pm-11:58 pm
1 stop9h 19m
Ontario
Sun 5/17
7:48 pm-11:59 pm
2 stops27h 11m
$401
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Fri 6/5
3:39 pm-10:21 am
2 stops19h 42m
Ontario
Tue 6/9
4:03 pm-11:59 pm
1 stop6h 56m
$408
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Thu 4/23
3:55 pm-11:59 pm
1 stop9h 04m
Ontario
Sun 4/26
10:39 am-2:59 pm
1 stop27h 20m
$428
MissoulaOntario
MSO - ONT
MSOONT
Missoula Johnson-Bell Field
Wed 6/10
7:00 am-11:14 am
1 stop5h 14m
Ontario
Sun 6/14
10:54 am-11:59 pm
2 stops12h 05m
$438
Showing 1-10 of 19 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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
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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 March 2, 2026.
Read through reviews of airlines operating flights from Missoula to Ontario, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Crew
8.5
Food
7.1
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 March 2, 2026.
Missoula and Ontario flights
Browse other Missoula and Ontario flight options. Last updated on March 2, 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 March 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$336 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$259 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$353 | FlexibilityNo cancel fee | On-time75% |