$117+ Cheap flights from Kalispell to Ontario (FCA - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — ONT
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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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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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 Kalispell to Ontario
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Cheapest flights from Kalispell to OntarioExplore the most affordable flight options available from Kalispell to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
Explore the most affordable flight options available from Kalispell to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:28 pm -
1 stop4h 55m
Sun 10/256:00 am -
1 stop4h 37m
Deal found 9/10![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 10/318:01 am -
1 stop6h 15m
Mon 11/27:15 am -
1 stop5h 00m
Deal found 9/9![Alaska Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 9/6. 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.
Mon 10/196:13 pm -
1 stop6h 42m
Thu 10/229:45 am -
1 stop6h 48m
Deal found 9/6![Delta logo]()
$327
This Delta deal was found by Cheapflights users on 9/6. 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.
Sun 10/185:30 am -
1 stop4h 25m
Sat 10/246:00 am -
1 stop4h 37m
Deal found 9/6![Delta logo]()
$338
This Booking.com deal was found by Cheapflights users on 9/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:55 pm -
1 stop16h 14m
Fri 12/44:00 pm -
1 stop6h 59m
Deal found 9/6![Alaska Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 9/10. 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 9/306:00 pm -
1 stop6h 47m
Fri 10/26:00 am -
1 stop4h 47m
Deal found 9/10![Delta logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/51:55 pm -
1 stop5h 22m
Thu 11/1212:02 pm -
1 stop4h 52m
Deal found 9/10![Alaska Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 9/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:17 pm -
1 stop7h 34m
Tue 10/208:03 am -
1 stop6h 13m
Deal found 9/6![United Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:13 pm -
1 stop4h 58m
Sat 10/245:03 pm -
1 stop4h 54m
Deal found 9/10![Delta logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/51:55 pm -
1 stop5h 22m
Sun 11/157:15 am -
1 stop5h 00m
Deal found 9/10![Alaska Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 9/6. 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 12/16:16 pm -
1 stop6h 42m
Thu 12/36:00 am -
1 stop4h 38m
Deal found 9/6![Delta logo]()
$379
Best flights from Kalispell to OntarioDiscover carefully curated flight deals from Kalispell to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Kalispell to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 11/66:13 pm -
1 stop4h 58m
Sat 11/145:04 pm -
1 stop4h 53m
Deal found 9/10![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 10/318:01 am -
1 stop6h 15m
Mon 11/27:15 am -
1 stop5h 00m
Deal found 9/9![Alaska Airlines logo]()
$325
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 1/1212:51 pm -
1 stop5h 26m
Sat 1/164:16 pm -
1 stop5h 41m
Deal found 9/10![Alaska Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 10/195:30 am -
1 stop4h 25m
Sat 10/245:03 pm -
1 stop4h 54m
Deal found 9/8![Delta logo]()
$327
This Delta deal was found by Cheapflights users on 9/6. 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.
Sun 10/185:30 am -
1 stop4h 25m
Thu 10/229:45 am -
1 stop6h 48m
Deal found 9/6![Delta logo]()
$338
This Delta deal was found by Cheapflights users on 9/6. 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.
Sun 12/206:16 pm -
1 stop6h 43m
Sat 1/96:00 am -
1 stop4h 49m
Deal found 9/6![Delta logo]()
$338
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:28 pm -
1 stop4h 55m
Sun 10/256:00 am -
1 stop4h 37m
Deal found 9/10![Delta logo]()
$368
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 10/145:30 am -
1 stop4h 25m
Sun 10/186:00 am -
1 stop4h 37m
Deal found 9/8![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 2/1011:59 am -
1 stop5h 13m
Wed 2/175:05 pm -
1 stop5h 02m
Deal found 9/8![Delta logo]()
$379
Last-minute flights from Kalispell to OntarioDiscover last-minute flight deals from Kalispell to Ontario. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Kalispell to Ontario. Data last updated September 11, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 9/188:21 pm -
1 stop15h 55m
Sun 9/276:02 am -
1 stop5h 18m
Deal found 9/10![Alaska Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 9/10. 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 9/306:00 pm -
1 stop6h 47m
Fri 10/26:00 am -
1 stop4h 47m
Deal found 9/10![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 9/7. 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 10/145:30 am -
1 stop4h 25m
Sun 10/186:00 am -
1 stop4h 37m
Deal found 9/7![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:17 pm -
1 stop7h 34m
Tue 10/208:03 am -
1 stop6h 13m
Deal found 9/6![United Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:28 pm -
1 stop4h 55m
Sun 10/256:00 am -
1 stop4h 37m
Deal found 9/10![Delta logo]()
$307
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:13 pm -
1 stop4h 58m
Sat 10/245:03 pm -
1 stop4h 54m
Deal found 9/10![Delta logo]()
$368
This Delta deal was found by Cheapflights users on 9/6. 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.
Sun 10/185:30 am -
1 stop4h 25m
Sat 10/246:00 am -
1 stop4h 37m
Deal found 9/6![Delta logo]()
$338
This Delta deal was found by Cheapflights users on 9/6. 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.
Mon 10/196:13 pm -
1 stop6h 42m
Thu 10/229:45 am -
1 stop6h 48m
Deal found 9/6![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 10/318:01 am -
1 stop6h 15m
Mon 11/27:15 am -
1 stop5h 00m
Deal found 9/9![Alaska Airlines logo]()
$325
One-way flights from Kalispell to OntarioSearch for one-way flight options from Kalispell to Ontario. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Kalispell to Ontario. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:08 pm -
1 stop15h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$117
This Priceline deal was found by Cheapflights users on 9/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:45 pm -
1 stop4h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/53:08 pm -
1 stop19h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$163
This Delta deal was found by Cheapflights users on 9/7. 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 10/85:30 am -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$164
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:21 pm -
1 stop15h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$170
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:45 pm -
1 stop4h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Alaska Airlines logo]()
$172
This Delta deal was found by Cheapflights users on 9/7. 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.
Fri 10/95:30 am -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$175
This Priceline deal was found by Cheapflights users on 9/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:45 pm -
1 stop4h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Alaska Airlines logo]()
$181
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:17 pm -
1 stop7h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$205
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 9/172:08 pm -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$215
Find flight deals from Kalispell to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) 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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $307 (Delta) |
One-way from | $117 (Kiwi.com) |
Popular in | July |
Cheapest in | April |
Average price | $428 |
Cheapflights Fare Finder
Customize your flight search to find flights from Kalispell 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 7,457,451 searches. Data last updated September 11, 2026.
Use the filters below to find and compare flights from Kalispell to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Mon 10/26
7:45 pm-11:42 pm
1 stop4h 57m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$154
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Wed 10/21
6:13 pm-11:55 pm
1 stop6h 42m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Mon 10/19
6:13 pm-11:55 pm
1 stop6h 42m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
Quickest round-trip
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Thu 10/8
5:30 am-8:55 am
1 stop4h 25m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Sat 10/3
6:00 pm-10:04 pm
1 stop5h 04m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Thu 10/15
7:45 pm-11:42 pm
1 stop4h 57m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$172
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Mon 10/5
3:08 pm-11:47 pm
2 stops33h 39m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$208
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Thu 9/17
2:08 pm-7:03 pm
1 stop5h 55m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$215
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Fri 11/6
6:13 pm-10:11 pm
1 stop4h 58m
Ontario
Sat 11/14
5:04 pm-10:57 pm
1 stop4h 53m
$307
KalispellOntario
FCA Kalispell Glacier Park - ONT Ontario
FCAONT
Kalispell Glacier Park
Sat 10/31
8:01 am-1:16 pm
1 stop6h 15m
Ontario
Mon 11/2
7:15 am-1:15 pm
1 stop5h 00m
$325
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Kalispell 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 Kalispell to Ontario in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Kalispell-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kalispell-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kalispell-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kalispell-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 Kalispell-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 Kalispell to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Kalispell with our price prediction graph.
FCA-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 Kalispell to Ontario
What is the cheapest month to book a flight from Kalispell to Ontario?
Currently, April is the cheapest month in which you can book a flight from Kalispell to Ontario (average of $163). Flying from Kalispell to Ontario in July is currently the most expensive (average of $1,214). 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 Kalispell to Ontario?
Airfare is below average for this route at the moment.
Kalispell to Ontario flights typically cost between $346 and $428 in October.The cheapest round-trip price found within the last 5 days was $307 on Delta (Oct 16-Oct 25).
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 September 11, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Kalispell to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Related info for your journey
Find useful and relevant information for your journey from Kalispell 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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Alternative routes for Kalispell to Ontario
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Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
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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 September 11, 2026.
Kalispell and Ontario flights
Browse other Kalispell and Ontario flight options. Last updated on September 11, 2026.
Other flights from Kalispell
Browse through other flights departing from Kalispell. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Kalispell to Ontario
Discover the top 3 airlines that operate flights from Kalispell 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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$348 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$163 | Average$345 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$258 | Average$347 | FlexibilityNo cancel fee | On-time69% |