FCA - ONT

$121 Find Cheap Flights from Kalispell to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kalispell to Ontario departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$243
Typical prices: $260-$446
Multiple Airlines
Mon 9/14Mon 9/21
FCA - ONT • 1 stop
Cheapest one-way
$121
Typical prices: $138-$439
Multiple Airlines
Mon 9/21
FCA - ONT • 1 stop
Top airlines
Cheapest • from $287 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Kalispell and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $192 (round-trip)
Shortest trip • 4h 59m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 62% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Kalispell to Ontario (FCA-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kalispell to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kalispell to Ontario

Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
8:46 pm - 9:09 amFCA  Kalispell Glacier Park-ONT Ontario
13h 23m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:00 am - 7:56 pmONT  Ontario-FCA Kalispell Glacier Park
10h 56m1 stop Las Vegas Harry Reid Intl
$243Multiple Airlines
Tue, Oct 27 - Thu, Oct 29
Alaska Airlines Logo
8:01 am - 1:16 pmFCA  Kalispell Glacier Park-ONT Ontario
6h 15m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:13 pm - 10:59 pmONT  Ontario-FCA Kalispell Glacier Park
7h 46m1 stop Seattle/Tacoma Intl
$287Alaska Airlines
Fri, Sep 18 - Sun, Sep 27
Delta Logo
5:30 am - 9:02 amFCA  Kalispell Glacier Park-ONT Ontario
4h 32m1 stop Salt Lake City
Delta Logo
6:00 am - 11:47 amONT  Ontario-FCA Kalispell Glacier Park
4h 47m1 stop Salt Lake City
$287Delta
Tue, Sep 29 - Tue, Oct 6
Delta Logo
6:00 pm - 11:47 pmFCA  Kalispell Glacier Park-ONT Ontario
6h 47m1 stop Salt Lake City
Delta Logo
6:00 am - 11:37 amONT  Ontario-FCA Kalispell Glacier Park
4h 37m1 stop Salt Lake City
$287Delta
Wed, Oct 28 - Thu, Oct 29
Alaska Airlines Logo
8:01 am - 1:16 pmFCA  Kalispell Glacier Park-ONT Ontario
6h 15m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:13 pm - 10:59 pmONT  Ontario-FCA Kalispell Glacier Park
7h 46m1 stop Seattle/Tacoma Intl
$287Alaska Airlines
Fri, Oct 23 - Sat, Oct 24
Alaska Airlines Logo
7:45 pm - 11:42 pmFCA  Kalispell Glacier Park-ONT Ontario
4h 57m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
11:13 am - 7:05 pmONT  Ontario-FCA Kalispell Glacier Park
6h 52m1 stop Seattle/Tacoma Intl
$287Alaska Airlines
Mon, Aug 31 - Thu, Sep 10
Multiple Airlines Logo
12:14 pm - 4:22 pmFCA  Kalispell Glacier Park-ONT Ontario
5h 08m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:24 pm - 7:53 pmONT  Ontario-FCA Kalispell Glacier Park
22h 29m1 stop Las Vegas Harry Reid Intl
$344Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
8:46 pm - 6:16 pmFCA  Kalispell Glacier Park-ONT Ontario
46h 30m2 stops Las Vegas Harry Reid Intl Dallas/Fort Worth
Multiple Airlines Logo
8:00 am - 7:56 pmONT  Ontario-FCA Kalispell Glacier Park
10h 56m1 stop Las Vegas Harry Reid Intl
$345Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
4:17 pm - 8:01 pmFCA  Kalispell Glacier Park-ONT Ontario
4h 44m1 stop San Francisco
United Airlines Logo
9:01 am - 3:21 pmONT  Ontario-FCA Kalispell Glacier Park
5h 20m1 stop San Francisco
$352United Airlines
Wed, Aug 26 - Tue, Sep 1
United Airlines Logo
4:17 pm - 8:01 pmFCA  Kalispell Glacier Park-ONT Ontario
4h 44m1 stop San Francisco
United Airlines Logo
1:18 pm - 9:21 pmONT  Ontario-FCA Kalispell Glacier Park
7h 03m1 stop Denver Intl
$378United Airlines
Booking Insights

KAYAK's insights & trends for Kalispell to Ontario flights

Get data-powered insights and trends into flights from Kalispell to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Kalispell to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Kalispell to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Kalispell to Ontario is April, where tickets cost $163 (return) on average. On the other hand, the most expensive months are July and March, where the average cost of round-trip tickets is $1,214 and $639 respectively.

Good to know

Low season

March

Cheapest flight

$121
Best time to beat the crowds but there is an average 48% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Kalispell to Ontario

When to book flights from Kalispell to Ontario

Are your dates flexible? Find out the best times to travel from Kalispell to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Kalispell to Ontario

  • What is the cheapest flight from Kalispell to Ontario?

    In the last 5 days, the lowest price for a flight from Kalispell to Ontario was $121 for a one-way ticket and $243 for a round-trip.

  • Do I need a passport to fly between Kalispell and Ontario?

    No

  • Which aircraft models fly most regularly from Kalispell to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Kalispell to Ontario?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Kalispell and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Kalispell to Ontario, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Kalispell to Ontario are Alaska Airlines and Delta. With an average price for the route of $345 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $348 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Kalispell to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Kalispell to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Kalispell to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Kalispell is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Kalispell to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Kalispell with another airline. Booking your flights between Kalispell and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Kalispell to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Kalispell up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Kalispell to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Kalispell to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kalispell to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12790 reviews
7.0Entertainment
8.1Boarding
7.8Comfort
8.5Crew
7.0Food
Airline reviews

The food selections were not good, and entertainment was non existent.

8.0 ExcellentAnonymous, Dec 2025
Read more Alaska Airlines reviews

The food selections were not good, and entertainment was non existent.

Staff inside Portland terminal were rude, made us fell rushed and not at all accommodating to seniors. For this alone I will probably never booked from them again.

Loved the staff ease of flying snacks and free movies and WiFi

Flight was very warm. It felt like there was no working AC.

Delayed. It's not our first flight with them either, it's actually our 3rd and all 3 were delayed by hours each time. It was a myriad of delays. On one flight we boarded after being delayed for a little over an hr, only to be told we were going to sit in the plane for another hour before departing. Once landed, we waited another 40ish min to get to our gate. On another flight, flight was delayed just under 3 hrs but atleast we got to wait it out at the airport terminal. Its just a bad experience overall flying with Alaska Airlines.

Flight last minute delayed 2 hours for crew calling out sick

Alaska Airlines needs more bag tag kiosks and bag check-in stations in Seattle. A single entry point for the bag tag kiosks would be helpful. This alleviates lines forming at each individual kiosk, which causes traffic jams for people passing through.

Probably one of the best flights I’ve had! From entering the airport, to boarding to landing.

Finally get a snack n drinks! Just like the good ole days!

My main complaint is specifically with having booked through kayak. Our flight was delayed and I was no longer able to access my boarding pass through the kayak app. Fortunately I had screen capped it. If I had not it would have been critical problem while boarding.

Both of my flights to and from JFK experienced significant delays. Most notably, my first flight was delayed by six hours due to crew members being affected by delays on a previous flight. While I understand that disruptions can occur, Delta’s staffing and operational planning should include sufficient contingency measures to handle situations like this rather than placing the full burden of those delays on customers. Additionally, the $12 meal voucher offered as compensation was inadequate, particularly given the high cost of food and beverages at the airport. Considering the length of the delay and the substantial inconvenience caused, I believe more meaningful compensation would have been appropriate.

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

The flight was done by SkyWest only WIFI no entertainment center are available on the CRJ

Delta is always late. Ruined our first day of a short vacation. Timing is important. We pay to stay on an itinerary

We never made it on this flight because we missed our connection due to o delayed flight from Jackson.

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

It was okay. We were delayed for weather reasons, but the pilots and the flight control staff figured a way around the storm and were able to get us to Los Angeles safely. Not all the staff members were polite, but the entertainment on the flight was good.

Crew was real good, flight was smooth and came in early.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

Nothing unusual. It was fine. I hate having to pay extra for my seat.

the seat has a problem. the back had a hole.

Old 757 with poor entertainment system. United no longer partners with United for free text and email. O'Hara an absolute disaster! Limited gates clauses two hour delay. Unfortunately this appears to be the norm.

The SFO lounge closes at 12 midnight. My flight took off at 2AM

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

It was a short, comfortable flight. It did leave an hour late due to the pilot having to be replaced (family emergency) but that didn’t inconvenience myself & my friend. The situation was explained, eventually.

There was a piece of plastic baked into my buttermilk biscuit! I have a pictures. The flight attendants in first class were really apologetic, and tried to rectify the situation. I I am very appreciative that they were able to give me some packets of pretzels and gummy bears. I understand they don't personally handle the food until warming it up so I know it wasn't their fault. I don't know whether it was a newer aircraft, or different food packaging, but I was happy that when the food was being warmed up - it didn't smell like plastic. Jokes on me with finding plastic in my food.

The seats were uncomfortable, as if the cushions haven't been switched out in many years. I felt like I was on an old bus. The food was delicious. thank you. Onboard entertainment, very limited. Unless you like violent movies. Why in the world would you have such severely violent movies on a plane? if you don't want to see such things, you don't have a choice. Have you considered that when choosing entertainment? Good god. Why would you have the Godfather? Or black women being brutally beaten with a club? Why in the hell would you put that kind of material on a plane? As for Kayak: Why when I ordered Qantas, was the plane on United?

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Everything you need to know for your flight from Kalispell to Ontario

Information on your arrival and departure airports