What airlines fly to San Antonio?

United Airlines, Delta and Alaska Airlines are the top three most popular airlines that fly to San Antonio from Kalispell according to our data. United Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 3 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Kalispell Glacier Park Airport to San Antonio Airport?

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

How many operators does momondo search for flights from Kalispell Glacier Park Airport to San Antonio Airport?

There are 2 operators available for flights from Kalispell Glacier Park Airport to San Antonio Airport as of November 2025.

How old do you have to be to fly from Kalispell Glacier Park Airport to San Antonio Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kalispell Glacier Park Airport to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The required travel and health documents for your San Antonio 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 San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$318 Cheap Flights from Kalispell to San Antonio in 2025/26

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Find the cheapest flights from Kalispell to San Antonio

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Cheap round-trip flights

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6:12 pm - 12:44 amFCA-SAT

5h 32m1 stop

6:05 pm - 11:02 pmSAT-FCA

5h 57m1 stop

$318Delta

Find Deal

Thu, Apr 16 - Mon, Apr 20

2:29 pm - 10:33 pmFCA-SAT

7h 04m2 stops

4:45 pm - 9:30 pmSAT-FCA

5h 45m1 stop

$353United Airlines

Find Deal

Wed, Apr 1 - Mon, Apr 6

6:31 am - 7:23 pmFCA-SAT

11h 52m2 stops

4:45 pm - 9:30 pmSAT-FCA

5h 45m1 stop

$433United Airlines

Find Deal

Thu, Apr 16 - Mon, Apr 20

9:53 pm - 5:35 amFCA-SAT

6h 42m1 stop

6:35 am - 11:18 amSAT-FCA

29h 43m2 stops

$500Multiple Airlines

Find Deal

Sun, Dec 21 - Fri, Dec 26

2:29 pm - 10:33 pmFCA-SAT

7h 04m2 stops

2:15 pm - 9:30 pmSAT-FCA

8h 15m2 stops

$503United Airlines

Find Deal

Wed, Apr 1 - Mon, Apr 6

6:40 am - 5:08 pmFCA-SAT

9h 28m2 stops

2:39 pm - 11:58 pmSAT-FCA

10h 19m2 stops

$531Alaska Airlines

Find Deal

Thu, Apr 16 - Mon, Apr 20

6:31 am - 5:33 pmFCA-SAT

10h 02m2 stops

10:00 am - 9:30 pmSAT-FCA

12h 30m2 stops

$549United Airlines

Find Deal

Thu, Apr 16 - Mon, Apr 20

6:31 am - 7:23 pmFCA-SAT

11h 52m2 stops

2:15 pm - 9:30 pmSAT-FCA

8h 15m2 stops

$590United Airlines

Find Deal

Thu, Apr 16 - Mon, Apr 20

5:20 am - 3:06 pmFCA-SAT

8h 46m2 stops

4:10 pm - 12:47 amSAT-FCA

9h 37m2 stops

$604Delta

Find Deal

Sun, Dec 21 - Fri, Dec 26

9:53 pm - 5:35 amFCA-SAT

6h 42m1 stop

2:01 pm - 5:05 pmSAT-FCA

28h 04m1 stop

$665Multiple Airlines

Find Deal

Sun, Dec 21 - Fri, Dec 26

Delta flights from Kalispell to San Antonio

Our best Delta deals on Kalispell to San Antonio flight tickets

Delta

Apr 16

FCA6:12 pmKalispell Glacier Park

5h 32m

1 stop

SAT12:44 amSan Antonio

Apr 20

SAT6:05 pmSan Antonio

5h 57m

1 stop

FCA11:02 pmKalispell Glacier Park

$318

Find similar

Delta

Dec 21

FCA5:20 amKalispell Glacier Park

8h 46m

2 stops

SAT3:06 pmSan Antonio

Dec 26

SAT4:10 pmSan Antonio

9h 37m

2 stops

FCA12:47 amKalispell Glacier Park

$604

Find similar

Delta

Dec 21

FCA5:50 pmKalispell Glacier Park

5h 52m

1 stop

SAT12:42 amSan Antonio

Dec 26

SAT7:18 pmSan Antonio

6h 29m

1 stop

FCA12:47 amKalispell Glacier Park

$1,654

Find similar

United Airlines flights from Kalispell to San Antonio

Our best United Airlines deals on Kalispell to San Antonio flight tickets

United Airlines

Apr 1

FCA2:29 pmKalispell Glacier Park

7h 04m

2 stops

SAT10:33 pmSan Antonio

Apr 6

SAT4:45 pmSan Antonio

5h 45m

1 stop

FCA9:30 pmKalispell Glacier Park

$353

Find similar

United Airlines

Apr 16

FCA6:31 amKalispell Glacier Park

11h 52m

2 stops

SAT7:23 pmSan Antonio

Apr 20

SAT4:45 pmSan Antonio

5h 45m

1 stop

FCA9:30 pmKalispell Glacier Park

$433

Find similar

United Airlines

Apr 1

FCA2:29 pmKalispell Glacier Park

7h 04m

2 stops

SAT10:33 pmSan Antonio

Apr 6

SAT2:15 pmSan Antonio

8h 15m

2 stops

FCA9:30 pmKalispell Glacier Park

$503

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 4/16

6:12 pm-12:44 am

1 stop5h 32m

San Antonio

Mon 4/20

6:05 pm-11:02 pm

1 stop5h 57m

$318

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Wed 4/1

2:29 pm-10:33 pm

2 stops7h 04m

San Antonio

Mon 4/6

4:45 pm-9:30 pm

1 stop5h 45m

$353

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 4/16

6:31 am-7:23 pm

2 stops11h 52m

San Antonio

Mon 4/20

4:45 pm-9:30 pm

1 stop5h 45m

$433

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 12/21

9:53 pm-5:35 am

1 stop6h 42m

San Antonio

Fri 12/26

6:35 am-11:18 am

2 stops29h 43m

$500

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Wed 4/1

2:29 pm-10:33 pm

2 stops7h 04m

San Antonio

Mon 4/6

2:15 pm-9:30 pm

2 stops8h 15m

$503

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 4/16

6:40 am-5:08 pm

2 stops9h 28m

San Antonio

Mon 4/20

2:39 pm-11:58 pm

2 stops10h 19m

$531

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 4/16

6:31 am-5:33 pm

2 stops10h 02m

San Antonio

Mon 4/20

10:00 am-9:30 pm

2 stops12h 30m

$549

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 4/16

6:31 am-7:23 pm

2 stops11h 52m

San Antonio

Mon 4/20

2:15 pm-9:30 pm

2 stops8h 15m

$590

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 12/21

5:20 am-3:06 pm

2 stops8h 46m

San Antonio

Fri 12/26

4:10 pm-12:47 am

2 stops9h 37m

$604

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 12/21

9:53 pm-5:35 am

1 stop6h 42m

San Antonio

Fri 12/26

2:01 pm-5:05 pm

1 stop28h 04m

$665

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Kalispell to San Antonio

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 month to fly to San Antonio?

If you aren’t able to travel during the month of November, then book flights to San Antonio from Kalispell during October instead. Flights to San Antonio in October, while not as cheap as those in November, still average around $401.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $479. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Friday is $781.

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

According to our data, the cheapest time of day to fly to San Antonio is at noon. momondo users have found flights departing from Kalispell to San Antonio at noon for as low as $512. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the afternoon, with an average ticket price of $630. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Kalispell to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Kalispell to San Antonio according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Kalispell to San Antonio (FCA to SAT) flight deals and tips

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

Direct flights	None

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

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How far is Kalispell Glacier Park to San Antonio by plane?
Kalispell Glacier Park and San Antonio are 1543.8 mi apart from one another. A reasonable flight in good conditions will take 5h 32m.
When did momondo last update prices for flights from Kalispell Glacier Park Airport to San Antonio Airport?
Prices for flights from Kalispell Glacier Park Airport to San Antonio Airport refresh daily.
How many operators does momondo search for flights from Kalispell Glacier Park Airport to San Antonio Airport?
There are 2 operators available for flights from Kalispell Glacier Park Airport to San Antonio Airport as of November 2025.
How old do you have to be to fly from Kalispell Glacier Park Airport to San Antonio Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kalispell Glacier Park Airport to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The required travel and health documents for your San Antonio 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 San Antonio 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 San Antonio?
Based on momondo bookings for flights between Kalispell and San Antonio, the leading airline is United Airlines, making up 60% of the total bookings. Other popular airlines include Delta with 40%.

Best airlines flying from Kalispell to San Antonio

Compare and see reviews for airlines that fly from Kalispell to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $276	Free Cancellation	Rating 7.9 8,003 reviews		Search Delta flights
United Airlines	PriceFrom $366	Free Cancellation	Rating 7.4 9,002 reviews		Search United Airlines flights

New Braunfels

Boerne

Kerrville

Schertz

Pleasanton

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Kalispell to San Antonio. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Kalispell to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Kalispell to San Antonio?

momondo provides multiple filters to help you find the best flight to San Antonio from Kalispell. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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