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 40% 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?

Delta, Alaska Airlines, 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 December 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.

$114 Cheap Flights from Kalispell to Ontario in 2025/26

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12:54 pm - 5:03 pm

FCA

ONT

5h 09m1 stop

4:03 pm - 11:58 pm

ONT

FCA

6h 55m1 stop

$224Alaska Airlines

mié., ene. 21 - mar., ene. 27

7:46 pm - 11:56 pm

FCA

ONT

5h 10m1 stop

7:00 am - 1:14 pm

ONT

FCA

5h 14m1 stop

$238Alaska Airlines

vie., ene. 9 - dom., ene. 11

12:54 pm - 5:03 pm

FCA

ONT

5h 09m1 stop

4:03 pm - 1:14 pm

ONT

FCA

20h 11m2 stops

$267Alaska Airlines

mié., ene. 21 - sáb., ene. 24

7:46 pm - 5:03 pm

FCA

ONT

22h 17m2 stops

4:03 pm - 11:58 pm

ONT

FCA

6h 55m1 stop

$273Alaska Airlines

mié., ene. 21 - mar., ene. 27

7:46 pm - 7:16 pm

FCA

ONT

24h 30m2 stops

7:00 am - 1:14 pm

ONT

FCA

5h 14m1 stop

$287Alaska Airlines

vie., ene. 9 - dom., ene. 11

12:54 pm - 8:36 pm

FCA

ONT

8h 42m2 stops

11:53 am - 1:14 pm

ONT

FCA

24h 21m2 stops

$314Alaska Airlines

mié., ene. 21 - sáb., ene. 24

12:52 pm - 5:14 pm

FCA

ONT

5h 22m1 stop

4:02 pm - 11:57 pm

ONT

FCA

6h 55m1 stop

$318Alaska Airlines

lun., mar. 9 - jue., mar. 12

7:53 pm - 10:44 pm

FCA

ONT

27h 51m1 stop

7:00 am - 1:13 pm

ONT

FCA

5h 13m1 stop

$364Alaska Airlines

lun., feb. 16 - sáb., feb. 21

12:54 pm - 8:36 pm

FCA

ONT

8h 42m2 stops

1:46 pm - 11:58 pm

ONT

FCA

9h 12m2 stops

$367Alaska Airlines

mié., ene. 21 - mar., ene. 27

12:58 pm - 11:59 pm

FCA

ONT

12h 01m1 stop

6:05 pm - 1:36 pm

ONT

FCA

18h 31m1 stop

$553Alaska Airlines

mié., dic. 31 - lun., ene. 5

Alaska Airlines flights from Kalispell to Ontario

Our best Alaska Airlines deals on Kalispell to Ontario flight tickets

Alaska Airlines

Jan 21

FCA12:54 pmKalispell Glacier Park

5h 09m

1 stop

ONT5:03 pmOntario

Jan 24

ONT4:03 pmOntario

6h 55m

1 stop

FCA11:58 pmKalispell Glacier Park

$224

Find similar

Alaska Airlines

Jan 9

FCA7:46 pmKalispell Glacier Park

5h 10m

1 stop

ONT11:56 pmOntario

Jan 11

ONT7:00 amOntario

5h 14m

1 stop

FCA1:14 pmKalispell Glacier Park

$238

Find similar

Alaska Airlines

Jan 21

FCA12:54 pmKalispell Glacier Park

5h 09m

1 stop

ONT5:03 pmOntario

Jan 24

ONT4:03 pmOntario

20h 11m

2 stops

FCA1:14 pmKalispell Glacier Park

$267

Find similar

United Airlines flights from Kalispell to Ontario

Our best United Airlines deals on Kalispell to Ontario flight tickets

United Airlines

Dec 20

FCA2:38 pmKalispell Glacier Park

7h 29m

1 stop

ONT9:07 pmOntario

Dec 21

ONT5:05 amOntario

7h 31m

1 stop

FCA1:36 pmKalispell Glacier Park

$570

Find similar

United Airlines

Dec 30

FCA1:39 pmKalispell Glacier Park

5h 04m

1 stop

ONT5:43 pmOntario

Jan 4

ONT5:05 amOntario

7h 31m

1 stop

FCA1:36 pmKalispell Glacier Park

$663

Find similar

United Airlines

Jan 4

FCA2:38 pmKalispell Glacier Park

7h 29m

1 stop

ONT9:07 pmOntario

Jan 7

ONT1:24 pmOntario

7h 35m

1 stop

FCA9:59 pmKalispell Glacier Park

$696

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

mié. 1/21

12:54 pm-5:03 pm

1 stop5h 09m

Ontario

mar. 1/27

4:03 pm-11:58 pm

1 stop6h 55m

$224

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

vie. 1/9

7:46 pm-11:56 pm

1 stop5h 10m

Ontario

dom. 1/11

7:00 am-1:14 pm

1 stop5h 14m

$238

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

mié. 1/21

12:54 pm-5:03 pm

1 stop5h 09m

Ontario

sáb. 1/24

4:03 pm-1:14 pm

2 stops20h 11m

$267

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

mié. 1/21

7:46 pm-5:03 pm

2 stops22h 17m

Ontario

mar. 1/27

4:03 pm-11:58 pm

1 stop6h 55m

$273

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

vie. 1/9

7:46 pm-7:16 pm

2 stops24h 30m

Ontario

dom. 1/11

7:00 am-1:14 pm

1 stop5h 14m

$287

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

mié. 1/21

12:54 pm-8:36 pm

2 stops8h 42m

Ontario

sáb. 1/24

11:53 am-1:14 pm

2 stops24h 21m

$314

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

lun. 3/9

12:52 pm-5:14 pm

1 stop5h 22m

Ontario

jue. 3/12

4:02 pm-11:57 pm

1 stop6h 55m

$318

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

lun. 2/16

7:53 pm-10:44 pm

1 stop27h 51m

Ontario

sáb. 2/21

7:00 am-1:13 pm

1 stop5h 13m

$364

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

mié. 1/21

12:54 pm-8:36 pm

2 stops8h 42m

Ontario

mar. 1/27

1:46 pm-11:58 pm

2 stops9h 12m

$367

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

mié. 12/31

12:58 pm-11:59 pm

1 stop12h 01m

Ontario

lun. 1/5

6:05 pm-1:36 pm

1 stop18h 31m

$553

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

Fastest flight time	4h 36m
Direct flights	None

The fastest flight from Kalispell to Ontario takes 4h 36m

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 36m 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 December 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 68% of all bookings. The subsequent popular airline is Alaska Airlines at 32%.

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
Delta	PriceFrom $236	Free Cancellation	Rating 7.9 8,008 reviews		Search Delta flights
Alaska Airlines	PriceFrom $253	Free Cancellation	Rating 8.0 11,429 reviews		Search Alaska 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.