$139+ Cheap flights from Kalispell to Ontario (FCA - 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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — ONT
Jul 6 — Jul 131
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Kalispell 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 Kalispell to Ontario
Cheapest
Best
Last-minute
One-way
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 June 6, 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 June 6, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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.
Sat 10/311:03 pm
FCA
- ONT
1 stop4h 47m
Alaska Airlines
Tue 11/37:15 am
ONT
- FCA
1 stop5h 10m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:19 am
FCA
- ONT
1 stop4h 31m
Delta
Sat 7/45:21 pm
ONT
- FCA
1 stop4h 34m
Delta
Deal found 6/5![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 10/141:03 pm
FCA
- ONT
1 stop4h 47m
Alaska Airlines
Sat 10/176:00 am
ONT
- FCA
1 stop5h 21m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 6/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:11 pm
FCA
- ONT
1 stop7h 26m
United Airlines
Thu 6/115:00 am
ONT
- FCA
1 stop7h 30m
United Airlines
Deal found 6/1![United Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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 10/137:45 pm
FCA
- ONT
2 stops21h 17m
Alaska Airlines
Tue 10/206:00 am
ONT
- FCA
1 stop5h 21m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 6/3. 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 8/95:15 am
FCA
- ONT
1 stop4h 33m
Delta
Wed 8/196:00 am
ONT
- FCA
1 stop4h 09m
Delta
Deal found 6/3![Delta logo]()
$462
This Delta deal was found by Cheapflights users on 6/2. 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 6/255:19 am
FCA
- ONT
1 stop4h 31m
Delta
Sat 6/275:21 pm
ONT
- FCA
1 stop4h 34m
Delta
Deal found 6/2![Delta logo]()
$468
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/242:33 pm
FCA
- ONT
1 stop7h 13m
United Airlines
Mon 6/295:00 am
ONT
- FCA
1 stop7h 30m
United Airlines
Deal found 6/2![United Airlines logo]()
$469
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 June 6, 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 June 6, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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.
Thu 10/227:45 pm
FCA
- ONT
1 stop4h 57m
Alaska Airlines
Sun 10/257:23 am
ONT
- FCA
1 stop5h 00m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 6/3. 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 8/95:15 am
FCA
- ONT
1 stop4h 33m
Delta
Wed 8/196:00 am
ONT
- FCA
1 stop4h 09m
Delta
Deal found 6/3![Delta logo]()
$462
This Alaska Airlines deal was found by Cheapflights users on 6/5. 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.
Sat 10/312:03 pm
FCA
- ONT
1 stop4h 57m
Alaska Airlines
Tue 11/37:15 am
ONT
- FCA
1 stop5h 10m
Alaska Airlines
Deal found 6/5![Alaska Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 10/141:03 pm
FCA
- ONT
1 stop4h 47m
Alaska Airlines
Sat 10/176:00 am
ONT
- FCA
1 stop5h 21m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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.
Fri 8/76:33 am
FCA
- ONT
1 stop7h 36m
Alaska Airlines
Mon 8/175:26 pm
ONT
- FCA
1 stop5h 33m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$504
Last-minute flights from Kalispell to OntarioDiscover last-minute flight deals from Kalispell to Ontario. Data last updated June 6, 2026 and is based on user searches.
Discover last-minute flight deals from Kalispell to Ontario. Data last updated June 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/2. 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 6/56:07 pm
FCA
- ONT
1 stop6h 27m
Delta
Mon 6/85:21 pm
ONT
- FCA
1 stop4h 34m
Delta
Deal found 6/2![Delta logo]()
$499
This United Airlines deal was found by Cheapflights users on 6/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:11 pm
FCA
- ONT
1 stop7h 26m
United Airlines
Thu 6/115:00 am
ONT
- FCA
1 stop7h 30m
United Airlines
Deal found 6/1![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 6/6. 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.
Thu 6/115:19 am
FCA
- ONT
1 stop4h 31m
Delta
Sat 6/136:00 am
ONT
- FCA
1 stop4h 47m
Delta
Deal found 6/6![Delta logo]()
$529
This Delta deal was found by Cheapflights users on 6/2. 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 6/195:19 am
FCA
- ONT
1 stop4h 31m
Delta
Sat 6/275:21 pm
ONT
- FCA
1 stop4h 34m
Delta
Deal found 6/2![Delta logo]()
$479
This American Airlines deal was found by Cheapflights users on 6/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/193:51 pm
FCA
- ONT
1 stop9h 08m
American Airlines
Tue 6/3011:59 pm
ONT
- FCA
1 stop10h 35m
American Airlines
Deal found 6/2![American Airlines logo]()
$523
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/206:20 am
FCA
- ONT
1 stop7h 18m
United Airlines
Mon 6/295:00 am
ONT
- FCA
1 stop7h 30m
United Airlines
Deal found 6/2![United Airlines logo]()
$480
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/242:33 pm
FCA
- ONT
1 stop7h 13m
United Airlines
Mon 6/295:00 am
ONT
- FCA
1 stop7h 30m
United Airlines
Deal found 6/2![United Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 6/2. 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 6/245:19 am
FCA
- ONT
1 stop4h 31m
Delta
Sat 6/275:21 pm
ONT
- FCA
1 stop4h 34m
Delta
Deal found 6/2![Delta logo]()
$494
This Delta deal was found by Cheapflights users on 6/2. 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 6/255:19 am
FCA
- ONT
1 stop4h 31m
Delta
Sat 6/275:21 pm
ONT
- FCA
1 stop4h 34m
Delta
Deal found 6/2![Delta logo]()
$468
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/254:11 pm
FCA
- ONT
1 stop7h 26m
United Airlines
Mon 6/295:00 am
ONT
- FCA
1 stop7h 30m
United Airlines
Deal found 6/2![United Airlines logo]()
$495
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:19 am
FCA
- ONT
1 stop4h 31m
Delta
Sat 7/45:21 pm
ONT
- FCA
1 stop4h 34m
Delta
Deal found 6/5![Delta logo]()
$297
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 June 6, 2026.
Search for one-way flight options from Kalispell to Ontario. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
This Delta deal was found by Cheapflights users on 6/3. 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 6/255:19 am
FCA
- ONT
1 stop4h 31m
Delta
Deal found 6/3![Delta logo]()
$139
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 6/236:33 am
FCA
- ONT
1 stop5h 41m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$150
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:19 am
FCA
- ONT
1 stop4h 31m
Delta
Deal found 6/5![Delta logo]()
$160
This Delta deal was found by Cheapflights users on 6/2. 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 9/1011:59 am
FCA
- ONT
1 stop5h 15m
Delta
Deal found 6/2![Delta logo]()
$166
This Booking.com deal was found by Cheapflights users on 6/3. 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.
Sat 9/268:21 pm
FCA
- ONT
1 stop15h 55m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$170
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/174:11 pm
FCA
- ONT
1 stop7h 26m
United Airlines
Deal found 6/2![United Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:09 pm
FCA
- ONT
2 stops35h 54m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$195
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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.
Tue 8/186:33 am
FCA
- ONT
1 stop5h 41m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:29 pm
FCA
- ONT
2 stops24h 25m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$210
This Trip.com deal was found by Cheapflights users on 6/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2210:31 am
FCA
- ONT
1 stop10h 20m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$214
This Delta deal was found by Cheapflights users on 6/2. 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 8/305:15 am
FCA
- ONT
1 stop4h 33m
Delta
Deal found 6/2![Delta logo]()
$216
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 June 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (Alaska Airlines) |
One-way from | $139 (Delta) |
Popular in | March |
Cheapest in | April |
Average price | $407 |
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 2,558,603 searches. Data last updated June 6, 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 - ONT
FCAONT
Kalispell Glacier Park
Thu 10/22
7:45 pm-11:42 pm
1 stop4h 57m
Ontario
Sun 10/25
7:23 am-1:23 pm
1 stop5h 00m
$277
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Sat 10/31
2:03 pm-6:00 pm
1 stop4h 57m
Ontario
Tue 11/3
7:15 am-1:25 pm
1 stop5h 10m
$277
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Wed 10/14
1:03 pm-4:50 pm
1 stop4h 47m
Ontario
Sat 10/17
6:00 am-12:21 pm
1 stop5h 21m
$343
Quickest round-trip
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Sun 8/9
5:15 am-8:48 am
1 stop4h 33m
Ontario
Wed 8/19
6:00 am-11:09 am
1 stop4h 09m
$462
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Fri 8/7
6:33 am-1:09 pm
1 stop7h 36m
Ontario
Mon 8/17
5:26 pm-11:59 pm
1 stop5h 33m
$504
Cheapest one-way
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Tue 6/23
6:33 am-11:14 am
1 stop5h 41m
$150
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Thu 6/25
5:19 am-8:50 am
1 stop4h 31m
$160
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Sat 6/20
6:20 am-12:38 pm
1 stop7h 18m
$190
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Wed 6/17
4:11 pm-10:37 pm
1 stop7h 26m
$190
KalispellOntario
FCA - ONT
FCAONT
Kalispell Glacier Park
Mon 6/15
10:31 am-7:51 pm
1 stop10h 20m
$231
Showing 1-10 of 17 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 June.
| 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.
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 June 6, 2026.
See what other customers who have flown with Alaska Airlines and Delta 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.
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
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 Kalispell to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Ontario flight routes
Other flight options
Other flights from Kalispell
Popular flights
Alternative routes for Kalispell to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Kalispell to Ontario by cabin class
Find flights from Kalispell to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 June 6, 2026.
Kalispell and Ontario flights
Browse other Kalispell and Ontario flight options. Last updated on June 6, 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 June 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Kalispell to Ontario
Discover the top 2 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 2,558,603 searches. Data last updated June 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$317 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$163 | Average$345 | FlexibilityNo cancel fee | On-time75% |