What airlines fly to Ontario?

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Ontario from Kalispell according to our data. Alaska Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 5 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Kalispell Glacier Park to Ontario?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Kalispell Glacier Park to Ontario

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?

As of November 2025, there are 2 operators available to choose from 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.

$113 Cheap Flights from Kalispell to Ontario in 2025/26

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Find the cheapest flights from Kalispell to Los Angeles

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:54 pm - 5:03 pmFCA-ONT

5h 09m1 stop

7:00 am - 1:13 pmONT-FCA

5h 13m1 stop

$232Alaska Airlines

Find Deal

Sat, Feb 7 - Tue, Feb 24

7:46 pm - 11:56 pmFCA-ONT

5h 10m1 stop

7:00 am - 1:14 pmONT-FCA

5h 14m1 stop

$256Alaska Airlines

Find Deal

Thu, Jan 8 - Fri, Jan 16

5:51 pm - 9:06 pmFCA-ONT

28h 15m1 stop

5:06 pm - 10:59 amONT-FCA

16h 53m1 stop

$274Multiple Airlines

Find Deal

Thu, Nov 20 - Mon, Nov 24

6:06 pm - 11:58 pmFCA-ONT

6h 52m1 stop

6:00 am - 11:31 amONT-FCA

4h 31m1 stop

$278Delta

Find Deal

Tue, Dec 2 - Tue, Dec 9

6:25 am - 1:06 pmFCA-ONT

7h 41m2 stops

7:00 am - 1:13 pmONT-FCA

5h 13m1 stop

$279Alaska Airlines

Find Deal

Sat, Feb 7 - Tue, Feb 24

6:06 pm - 11:58 pmFCA-ONT

6h 52m1 stop

12:40 pm - 11:10 pmONT-FCA

9h 30m2 stops

$283Delta

Find Deal

Tue, Dec 2 - Tue, Dec 9

6:10 am - 12:33 pmFCA-ONT

7h 23m1 stop

5:05 am - 1:36 pmONT-FCA

7h 31m1 stop

$329United Airlines

Find Deal

Mon, Nov 24 - Thu, Nov 27

5:51 pm - 11:57 pmFCA-ONT

31h 06m2 stops

5:06 pm - 10:59 amONT-FCA

16h 53m1 stop

$372Multiple Airlines

Find Deal

Thu, Nov 20 - Mon, Nov 24

2:07 pm - 8:53 pmFCA-ONT

7h 46m1 stop

6:00 am - 12:10 pmONT-FCA

5h 10m1 stop

$407Hawaiian Airlines

Find Deal

Thu, Nov 20 - Mon, Nov 24

2:38 pm - 8:44 pmFCA-ONT

7h 06m1 stop

5:05 am - 1:36 pmONT-FCA

7h 31m1 stop

$448United Airlines

Find Deal

Fri, Nov 21 - Mon, Nov 24

Delta flights from Kalispell to Ontario

Our best Delta deals on Kalispell to Ontario flight tickets

Delta

Dec 2

FCA6:06 pmKalispell Glacier Park

6h 52m

1 stop

ONT11:58 pmOntario

Dec 9

ONT6:00 amOntario

4h 31m

1 stop

FCA11:31 amKalispell Glacier Park

$278

Find similar

Delta

Dec 2

FCA6:06 pmKalispell Glacier Park

6h 52m

1 stop

ONT11:58 pmOntario

Dec 9

ONT12:40 pmOntario

9h 30m

2 stops

FCA11:10 pmKalispell Glacier Park

$283

Find similar

Delta

Nov 17

FCA6:06 pmKalispell Glacier Park

6h 46m

1 stop

ONT11:52 pmOntario

Nov 21

ONT6:00 amOntario

4h 26m

1 stop

FCA11:26 amKalispell Glacier Park

$289

Find similar

Alaska Airlines flights from Kalispell to Ontario

Our best Alaska Airlines deals on Kalispell to Ontario flight tickets

Alaska Airlines

Feb 7

FCA12:54 pmKalispell Glacier Park

5h 09m

1 stop

ONT5:03 pmOntario

Feb 24

ONT7:00 amOntario

5h 13m

1 stop

FCA1:13 pmKalispell Glacier Park

$232

Find similar

Alaska Airlines

Jan 8

FCA7:46 pmKalispell Glacier Park

5h 10m

1 stop

ONT11:56 pmOntario

Jan 16

ONT7:00 amOntario

5h 14m

1 stop

FCA1:14 pmKalispell Glacier Park

$256

Find similar

Alaska Airlines

Feb 7

FCA6:25 amKalispell Glacier Park

7h 41m

2 stops

ONT1:06 pmOntario

Feb 24

ONT7:00 amOntario

5h 13m

1 stop

FCA1:13 pmKalispell Glacier Park

$279

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Sat 2/7

12:54 pm-5:03 pm

1 stop5h 09m

Ontario

Tue 2/24

7:00 am-1:13 pm

1 stop5h 13m

$232

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 1/8

7:46 pm-11:56 pm

1 stop5h 10m

Ontario

Fri 1/16

7:00 am-1:14 pm

1 stop5h 14m

$256

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 11/20

5:51 pm-9:06 pm

1 stop28h 15m

Ontario

Mon 11/24

5:06 pm-10:59 am

1 stop16h 53m

$274

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Tue 12/2

6:06 pm-11:58 pm

1 stop6h 52m

Ontario

Tue 12/9

6:00 am-11:31 am

1 stop4h 31m

$278

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Sat 2/7

6:25 am-1:06 pm

2 stops7h 41m

Ontario

Tue 2/24

7:00 am-1:13 pm

1 stop5h 13m

$279

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Tue 12/2

6:06 pm-11:58 pm

1 stop6h 52m

Ontario

Tue 12/9

12:40 pm-11:10 pm

2 stops9h 30m

$283

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Mon 11/24

6:10 am-12:33 pm

1 stop7h 23m

Ontario

Thu 11/27

5:05 am-1:36 pm

1 stop7h 31m

$329

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 11/20

5:51 pm-11:57 pm

2 stops31h 06m

Ontario

Mon 11/24

5:06 pm-10:59 am

1 stop16h 53m

$372

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 11/20

2:07 pm-8:53 pm

1 stop7h 46m

Ontario

Mon 11/24

6:00 am-12:10 pm

1 stop5h 10m

$407

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Fri 11/21

2:38 pm-8:44 pm

1 stop7h 06m

Ontario

Mon 11/24

5:05 am-1:36 pm

1 stop7h 31m

$448

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $373. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Kalispell to Ontario for around $594.

What is the cheapest time of day to depart on your flight to Ontario?

In the afternoon is the cheapest time of day to fly from Kalispell to Ontario when you can find flight prices for as low as $409. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $529 on average. Flights to Ontario from Kalispell at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights	None

There are no direct flights from Kalispell to Ontario. There are no popular flight routes from Kalispell to Ontario.

Search flight deals

How far is Kalispell Glacier Park to Ontario by plane?
There are 990.8 mi between Kalispell Glacier Park and Ontario. 4h 38m 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?
As of November 2025, there are 2 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Kalispell to Ontario is Delta, representing 59% of all bookings. The subsequent popular airline is Alaska Airlines at 41%.

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
Alaska Airlines	PriceFrom $253	Free Cancellation	Rating 8.0 11,237 reviews		Search Alaska Airlines flights
Delta	PriceFrom $254	Free Cancellation	Rating 7.9 8,002 reviews		Search Delta 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.