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Cheap flights from Kalispell to Los Angeles from $121

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

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Find the cheapest flights from Kalispell to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
8:08 pm - 9:09 amFCA  Kalispell Glacier Park-ONT Ontario
14h 01m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
2:58 pm - 10:57 amONT  Ontario-FCA Kalispell Glacier Park
18h 59m1 stop Las Vegas Harry Reid Intl
$254Multiple Airlines
Mon, Oct 12 - Sun, Oct 25
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
$259Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
Delta Logo
6:00 pm - 11:47 pmFCA  Kalispell Glacier Park-ONT Ontario
6h 47m1 stop Salt Lake City
Delta Logo
5:15 pm - 10:54 pmONT  Ontario-FCA Kalispell Glacier Park
4h 39m1 stop Salt Lake City
$287Delta
Wed, Sep 30 - Sat, Oct 3
Delta Logo
6:00 pm - 11:47 pmFCA  Kalispell Glacier Park-ONT Ontario
6h 47m1 stop Salt Lake City
Delta Logo
6:00 am - 11:47 amONT  Ontario-FCA Kalispell Glacier Park
4h 47m1 stop Salt Lake City
$287Delta
Wed, Sep 30 - Sun, Oct 4
Alaska Airlines Logo
7:45 pm - 11:42 pmFCA  Kalispell Glacier Park-ONT Ontario
4h 57m1 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
Mon, Oct 26 - Thu, Oct 29
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
Thu, Oct 29 - Sat, Oct 31
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, Oct 26 - Sat, Oct 31
United Airlines Logo
4:17 pm - 8:01 pmFCA  Kalispell Glacier Park-ONT Ontario
4h 44m1 stop San Francisco
United Airlines Logo
5:00 am - 1:29 pmONT  Ontario-FCA Kalispell Glacier Park
7h 29m1 stop Denver Intl
$329United Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
4:17 pm - 10:59 pmFCA  Kalispell Glacier Park-ONT Ontario
7h 42m1 stop San Francisco
United Airlines Logo
9:01 am - 3:21 pmONT  Ontario-FCA Kalispell Glacier Park
5h 20m1 stop San Francisco
$414United Airlines
Fri, Sep 4 - Tue, Sep 8

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Alaska Airlines flights from Kalispell to Ontario

Our best Alaska Airlines deals on Kalispell to Ontario flight tickets
Alaska Airlines
Feb 1
FCA6:33 amKalispell Glacier Park
5h 36m
1 stop
ONT11:09 amOntario
Feb 5
ONT4:00 pmOntario
6h 59m
1 stop
FCA11:59 pmKalispell Glacier Park
$295
Alaska Airlines
Oct 26
FCA7:45 pmKalispell Glacier Park
4h 57m
1 stop
ONT11:42 pmOntario
Oct 30
ONT2:13 pmOntario
7h 46m
1 stop
FCA10:59 pmKalispell Glacier Park
$313
Alaska Airlines
Oct 23
FCA7:45 pmKalispell Glacier Park
4h 57m
1 stop
ONT11:42 pmOntario
Oct 24
ONT11:13 amOntario
6h 52m
1 stop
FCA7:05 pmKalispell Glacier Park
$323

United Airlines flights from Kalispell to Ontario

Our best United Airlines deals on Kalispell to Ontario flight tickets
United Airlines
Aug 28
FCA4:17 pmKalispell Glacier Park
4h 44m
1 stop
ONT8:01 pmOntario
Sep 1
ONT5:00 amOntario
7h 29m
1 stop
FCA1:29 pmKalispell Glacier Park
$329
United Airlines
Sep 4
FCA4:17 pmKalispell Glacier Park
7h 42m
1 stop
ONT10:59 pmOntario
Sep 8
ONT9:01 amOntario
5h 20m
1 stop
FCA3:21 pmKalispell Glacier Park
$414
United Airlines
Nov 7
FCA2:36 pmKalispell Glacier Park
7h 15m
1 stop
ONT8:51 pmOntario
Nov 14
ONT1:29 pmOntario
7h 22m
1 stop
FCA9:51 pmKalispell Glacier Park
$423

momondo 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, momondo users made 832,500 searches. Data last updated August 13, 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

Price

Cheapest round-trip

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Mon 9/14

8:46 pm-9:09 am

1 stop13h 23m

Ontario

Mon 9/21

8:00 am-7:56 pm

1 stop10h 56m

$243

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Mon 10/12

8:08 pm-9:09 am

1 stop14h 01m

Ontario

Sun 10/25

2:58 pm-10:57 am

1 stop18h 59m

$254

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Mon 9/21

8:46 pm-9:09 am

1 stop13h 23m

Ontario

Mon 9/28

8:00 am-7:56 pm

1 stop10h 56m

$259
Quickest round-trip

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Wed 9/30

6:00 pm-11:47 pm

1 stop6h 47m

Ontario

Sat 10/3

5:15 pm-10:54 pm

1 stop4h 39m

$287

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Wed 9/30

6:00 pm-11:47 pm

1 stop6h 47m

Ontario

Sun 10/4

6:00 am-11:47 am

1 stop4h 47m

$287

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Mon 10/26

7:45 pm-11:42 pm

1 stop4h 57m

Ontario

Thu 10/29

2:13 pm-10:59 pm

1 stop7h 46m

$287

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Thu 10/29

7:45 pm-11:42 pm

1 stop4h 57m

Ontario

Sat 10/31

11:13 am-7:05 pm

1 stop6h 52m

$287

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Mon 10/26

7:45 pm-11:42 pm

1 stop4h 57m

Ontario

Sat 10/31

11:13 am-7:05 pm

1 stop6h 52m

$287

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Fri 8/28

4:17 pm-8:01 pm

1 stop4h 44m

Ontario

Tue 9/1

5:00 am-1:29 pm

1 stop7h 29m

$329

KalispellOntario

FCA Kalispell Glacier Park - ONT Ontario

FCAONT

Kalispell Glacier Park

Fri 9/4

4:17 pm-10:59 pm

1 stop7h 42m

Ontario

Tue 9/8

9:01 am-3:21 pm

1 stop5h 20m

$414

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Kalispell to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ontario?

In general, April is the cheapest month to fly from Kalispell to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $163. If you aren’t able to travel during the month of April, then book flights to Ontario from Kalispell during January instead. Flights to Ontario in January, while not as cheap as those in April, still average around $280.

How have Kalispell to Ontario flight prices changed over time?

When to book flights from Kalispell to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Kalispell to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Kalispell to Ontario (FCA to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kalispell to Ontario

Fastest flight time

4h 32m

Direct flights

None
The fastest flight from Kalispell to Ontario takes 4h 32m
There are no direct flights from Kalispell to Ontario. There are no popular flight routes from Kalispell to Ontario.
Search flight deals

Frequently asked questions about flying from Kalispell to Ontario

  • How far is Kalispell Glacier Park to Ontario by plane?

    There are 990.8 mi between Kalispell Glacier Park and Ontario. 4h 32m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Kalispell Glacier Park Airport to Ontario Airport?

    Prices for flights from Kalispell Glacier Park Airport to Ontario Airport refresh daily.

  • How many operators does momondo search for flights from Kalispell Glacier Park Airport to Ontario Airport?

  • How old do you have to be to fly from Kalispell Glacier Park Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kalispell Glacier Park Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Kalispell to Ontario?

Best airlines flying from Kalispell to Ontario

Compare and see reviews for airlines that fly from Kalispell to Ontario with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $108Free CancellationRating
7.8
8,503 reviews
Search Delta flights
Alaska AirlinesPriceFrom $163Free CancellationRating
7.9
12,808 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
10,112 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Kalispell to Ontario?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Kalispell to Ontario. momondo saves you time and could save you money on your trip.

Can I find flights from Kalispell to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Kalispell to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Kalispell to Ontario?

momondo helps you find the best flight between Kalispell and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Kalispell to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Kalispell to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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