FCA - ONT

$109 Find Cheap Flights from Kalispell to Ontario

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 12/16. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kalispell to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kalispell to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$208
Alaska Airlines
Sat 1/31Tue 2/10
FCA - ONT • 1 stop
Cheapest one-way
$109
Typical prices: $353-$397
Delta
Tue 12/16
FCA - ONT • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Sat, Jan 31 - Tue, Feb 10
Alaska Airlines Logo
12:54 pm - 5:03 pmFCA-ONT
5h 09m1 stop
Alaska Airlines Logo
11:53 am - 7:06 pmONT-FCA
6h 13m1 stop
$208Alaska Airlines
Find Deal
Wed, Feb 4 - Mon, Feb 9
Delta Logo
5:24 am - 1:56 pmFCA-ONT
9h 32m2 stops
Delta Logo
5:10 pm - 10:52 pmONT-FCA
4h 42m1 stop
$222Delta
Find Deal
Sun, Feb 1 - Mon, Feb 9
Alaska Airlines Logo
7:46 pm - 11:56 pmFCA-ONT
5h 10m1 stop
Alaska Airlines Logo
6:00 am - 12:14 pmONT-FCA
5h 14m1 stop
$223Alaska Airlines
Find Deal
Fri, Jan 9 - Sun, Jan 11
Alaska Airlines Logo
12:54 pm - 5:03 pmFCA-ONT
5h 09m1 stop
Alaska Airlines Logo
6:00 am - 12:14 pmONT-FCA
5h 14m1 stop
$224Alaska Airlines
Find Deal
Wed, Feb 4 - Fri, Feb 6
Delta Logo
5:24 am - 1:56 pmFCA-ONT
9h 32m2 stops
Delta Logo
5:10 pm - 10:52 pmONT-FCA
4h 42m1 stop
$233Delta
Find Deal
Tue, Jan 6 - Fri, Jan 9
Alaska Airlines Logo
8:10 pm - 8:36 pmFCA-ONT
25h 26m1 stop
Alaska Airlines Logo
4:03 pm - 7:06 pmONT-FCA
26h 03m1 stop
$242Alaska Airlines
Find Deal
Tue, Jan 6 - Fri, Jan 9
Alaska Airlines Logo
8:10 pm - 3:08 pmFCA-ONT
19h 58m1 stop
Alaska Airlines Logo
4:03 pm - 1:14 pmONT-FCA
20h 11m2 stops
$248Alaska Airlines
Find Deal
Wed, Jan 7 - Sat, Jan 10
Alaska Airlines Logo
7:46 pm - 3:08 pmFCA-ONT
20h 22m1 stop
Alaska Airlines Logo
4:03 pm - 1:14 pmONT-FCA
20h 11m2 stops
$258Alaska Airlines
Find Deal
Sat, Jan 17 - Wed, Jan 21
Alaska Airlines Logo
6:25 am - 1:06 pmFCA-ONT
7h 41m2 stops
Alaska Airlines Logo
11:53 am - 7:06 pmONT-FCA
6h 13m1 stop
$262Alaska Airlines
Find Deal
Thu, Apr 2 - Mon, Apr 6
Delta Logo
6:12 pm - 11:52 pmFCA-ONT
6h 40m1 stop
Delta Logo
5:05 pm - 11:07 pmONT-FCA
5h 02m1 stop
$269Delta
Find Deal
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’s the cheapest day of the week to fly from Kalispell to Ontario?

The average price of all round-trip flights from Kalispell to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Kalispell to Ontario. For your return ticket, we recommend flying on a Monday and avoiding Thursdays for the best deals.

Good to know

Low seasonMay
Cheapest flight$109
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 25% increase in price.
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 3 days, the lowest price for a flight from Kalispell to Ontario was $109 for a one-way ticket and $208 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, 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 $372 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $288 and an overall rating of 7.9.

  • 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 airlines flying 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.
8.0
Alaska AirlinesOverall score based on 11321 reviews
8.1Boarding
7.1Food
7.0Entertainment
8.5Crew
7.8Comfort
Airline reviews

I love the flight ✈️ Hawaiian Airlines. All stuffs are fantastic members ♡ sweet hearts and families warm welcome 🙏 I have milage of Hawaiian Airlines members so get points .also I booked kayak agent got cheap price ! I satisfied flight with Hawaiian Airlines ♡ thank you

10.0 Excellentmira, Nov 2025HNL - LAX
Read more Alaska Airlines reviews

I love the flight ✈️ Hawaiian Airlines. All stuffs are fantastic members ♡ sweet hearts and families warm welcome 🙏 I have milage of Hawaiian Airlines members so get points .also I booked kayak agent got cheap price ! I satisfied flight with Hawaiian Airlines ♡ thank you

Good, but because I fly internationally I found the food and service lousy compared to European standards. You should include a regular small mean (and not a lousy sandwich) and ear phones. People who travel from Europe are not aware of limited services.

Fine. But given how empty the flight was, I do not understand why my dog, in its carrier, could not be placed on the seat next to me (which was empty) rather than on the floor under seat. This seemed like overkill on the rule following by the flight staff.

Flight from LAX to STS das excellent. Flight from DCA to LAX was troubled by the previous flight returning to the one DCA gate putting our flight in jeopardy. However another gate was arranged and that flight was a bit late, but was handled exceptionally.

A very good experience - all staff was friendly and helpful.

My mother suffers from Lupus and has challenges walking. I specifically called Alaska airlines, stated her condition and made sure my mother’s had wheel char assistance towards gate and into the gate hall so she just had to get into the plane and walk a couple of steps. It was assured by Alaska team that the service was granted in both airports , DEN and SAN . In Denver , the wheelchair assistance never arrived. I had to personally grab another airline wheelchair sit my mom.Then I had to go to Alaska Airlines front desk twice to let them know my mother was waiting at the wheelchair service station. Upon arrival to SD Airport , there was no wheelchair service waiting for her in the hall before deplaning. She had to walk her way out in pain. Absolutely inconsiderate and unacceptable by the airline! Never again flying with Alaska Airlines.

You need a n/a category. Too short a flight for food. I love flying on Alaska from Santa Rosa Airport!

I would like if it had happened already. I'm still waiting for it.

Overall the flight was on-time and plane ride very comfortable. The free snacks not so good - only a small bag of pretzels and no milk. I wanted milk. There was not entertainment on the plane unless I wanted to download their APP. But I would consider flying with them again and be more prepared on my part with food and entertainment.

Waiting 2 hours after landing to arrive at a gate was ridiculous.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

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

Information on your arrival and departure airports