FCA - ONT

$139 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 6/25. 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
$277
Typical prices: $345-$272
Alaska Airlines
Sat 10/31Tue 11/3
FCA - ONT • 1 stop
Cheapest one-way
$139
Typical prices: $165-$305
Delta
Thu 6/25
FCA - ONT • 1 stop
Top airlines
Cheapest • from $277 (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 • 5h 10m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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, Oct 31 - Tue, Nov 3
Alaska Airlines Logo
1:03 pm - 4:50 pm
FCA
-
ONT
4h 47m
1 stop
Alaska Airlines Logo
7:15 am - 1:25 pm
ONT
-
FCA
5h 10m
1 stop
$277Alaska Airlines
Thu, Oct 8 - Sun, Oct 11
Alaska Airlines Logo
7:45 pm - 11:42 pm
FCA
-
ONT
4h 57m
1 stop
Alaska Airlines Logo
7:23 am - 1:23 pm
ONT
-
FCA
5h 00m
1 stop
$303Alaska Airlines
Thu, Aug 6 - Sat, Aug 22
Alaska Airlines Logo
6:33 am - 11:14 am
FCA
-
ONT
5h 41m
1 stop
Alaska Airlines Logo
3:07 pm - 10:56 pm
ONT
-
FCA
6h 49m
1 stop
$320Alaska Airlines
Wed, Aug 12 - Mon, Aug 17
United Airlines Logo
4:17 pm - 8:01 pm
FCA
-
ONT
4h 44m
1 stop
United Airlines Logo
9:01 am - 3:21 pm
ONT
-
FCA
5h 20m
1 stop
$341United Airlines
Wed, Oct 14 - Sat, Oct 17
Alaska Airlines Logo
1:03 pm - 4:50 pm
FCA
-
ONT
4h 47m
1 stop
Alaska Airlines Logo
6:00 am - 12:21 pm
ONT
-
FCA
5h 21m
1 stop
$343Alaska Airlines
Sat, Oct 31 - Tue, Nov 3
Alaska Airlines Logo
1:03 pm - 4:50 pm
FCA
-
ONT
4h 47m
1 stop
Alaska Airlines Logo
5:12 pm - 5:54 pm
ONT
-
FCA
23h 42m
2 stops
$385Alaska Airlines
Sun, Aug 9 - Wed, Aug 19
Delta Logo
5:15 am - 8:48 am
FCA
-
ONT
4h 33m
1 stop
Delta Logo
6:00 am - 11:09 am
ONT
-
FCA
4h 09m
1 stop
$398Delta
Sat, Oct 31 - Tue, Nov 3
Alaska Airlines Logo
6:44 am - 4:50 pm
FCA
-
ONT
11h 06m
2 stops
Alaska Airlines Logo
7:15 am - 1:25 pm
ONT
-
FCA
5h 10m
1 stop
$405Alaska Airlines
Tue, Oct 13 - Tue, Oct 20
Alaska Airlines Logo
7:45 pm - 4:02 pm
FCA
-
ONT
21h 17m
2 stops
Alaska Airlines Logo
6:00 am - 12:21 pm
ONT
-
FCA
5h 21m
1 stop
$407Alaska Airlines
Wed, Aug 5 - Sat, Aug 22
Alaska Airlines Logo
4:37 pm - 11:11 pm
FCA
-
ONT
7h 34m
1 stop
Alaska Airlines Logo
3:07 pm - 10:56 pm
ONT
-
FCA
6h 49m
1 stop
$412Alaska 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 July, where tickets cost $0 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $639 and $407 respectively.

Good to know

Low seasonApril
Cheapest flight$139
Best time to beat the crowds with an average 60% drop in price.
Most popular time to fly with an average 13% 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 5 days, the lowest price for a flight from Kalispell to Ontario was $139 for a one-way ticket and $277 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 $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 $318 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 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.
7.9
Alaska AirlinesOverall score based on 12466 reviews
8.1Boarding
7.1Food
7.8Comfort
8.5Crew
7.0Entertainment
Airline reviews

I was very impressed at how Alaska Airlines handles people with medical needs.

8.0 ExcellentJeanie, Jun 2026
JFK - SAN
Read more Alaska Airlines reviews

I was very impressed at how Alaska Airlines handles people with medical needs.

Check in & bag drop was straightforward. Alaskair changed the gate approx 40 min before departure, and I only became aware due to Google wallet update to my boarding pass. Had to move from gate N1 to C9 which required use of the Train, luckily I had time available.

Wish there were more complimentary drinks available - only had water and apple juice. Also - no snacks were provided during the flight, but we were offered some items as we exited the plane.

My boarding passes were pulled from my Apple wallet and my 3 family members who were all sitting together in the same row all got put middle seats and were one of the last to board and barely were able to get our bags in the luggage bins.

Everything went smoothly from the transfer from Orlando to a quick board. Flight was not full and we were able to get underway a little early. My only critique is that in Orlando, they offered active duty service members and veterans to board ahead of their zones in the initial boarding process. They did not offer to veterans in San Diego. Both flights were comfortable

Terrible experience with an extremely obese passenger seated directly behind me - who snored and gagged so loudly, even throughout takeoff, that no one within ten rows could have gotten any rest even with earplugs! I get that this poor person has a serious health issue, and that Alaska (maybe) had no way to prepare in advance (though he did occupy two seats). Still there must be a way to take a six-hour flight without feeling like I'm next to a roaring grizzly bear.

It might not have been their fault, but there was a two hour delay due to weather. Then we boarded and were about to leave when they said there were more problems at the destination, took us back to the gate where we had to fully deplane. But then five minutes later, they said everything was fine and to get back on the plane. This was the part that pissed everybody off.

I'm tall and the seats do not have a headrest so its hard to get comfortable. Staff and checking were all great.

I was surprised by everything. The cleanliness, the punctuality, the friendliness of the crew… and the Wi-Fi! Please keep up the good work.

Good flight overall. Lots of bumps during flight but pilot kept searching for smooth air

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

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

Information on your arrival and departure airports