What airlines fly to San Antonio?

United Airlines, Delta and American 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 59% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 4 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 September 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.

$117 Cheap Flights from Kalispell to San Antonio in 2025/26

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Find the cheapest flights from Kalispell to San Antonio

Round-trip

One-way

Last minute

Cheap round-trip flights

2:37 pm - 12:04 amFCA-SAT

8h 27m1 stop

6:40 am - 12:22 pmSAT-FCA

6h 42m1 stop

$372Hawaiian Airlines

Find Deal

jue., oct. 9 - mar., oct. 21

2:37 pm - 12:04 amFCA-SAT

8h 27m1 stop

6:40 am - 12:22 pmSAT-FCA

6h 42m1 stop

$382Hawaiian Airlines

Find Deal

jue., oct. 9 - mar., oct. 21

6:10 pm - 12:31 amFCA-SAT

5h 21m1 stop

6:07 pm - 11:09 pmSAT-FCA

6h 02m1 stop

$383Delta

Find Deal

jue., oct. 16 - mar., oct. 21

6:10 pm - 12:31 amFCA-SAT

5h 21m1 stop

6:25 am - 5:28 pmSAT-FCA

12h 03m2 stops

$388Delta

Find Deal

jue., oct. 16 - mar., oct. 21

2:37 pm - 12:04 amFCA-SAT

8h 27m1 stop

7:56 pm - 1:57 pmSAT-FCA

19h 01m2 stops

$398Alaska Airlines

Find Deal

jue., oct. 9 - mar., oct. 21

6:06 pm - 12:35 amFCA-SAT

5h 29m1 stop

6:05 pm - 11:04 pmSAT-FCA

5h 59m1 stop

$431Delta

Find Deal

lun., dic. 1 - vie., dic. 5

6:31 am - 12:04 amFCA-SAT

16h 33m1 stop

7:56 pm - 1:57 pmSAT-FCA

19h 01m2 stops

$451Alaska Airlines

Find Deal

jue., oct. 9 - mar., oct. 21

5:00 am - 2:49 pmFCA-SAT

8h 49m2 stops

11:50 am - 11:04 pmSAT-FCA

12h 14m2 stops

$461Delta

Find Deal

mié., dic. 3 - dom., dic. 7

4:08 pm - 8:38 amFCA-SAT

15h 30m2 stops

5:30 am - 4:08 pmSAT-FCA

11h 38m2 stops

$530United Airlines

Find Deal

jue., oct. 9 - mar., oct. 21

5:06 pm - 8:38 amFCA-SAT

14h 32m2 stops

11:45 am - 9:31 pmSAT-FCA

10h 46m2 stops

$555United Airlines

Find Deal

jue., oct. 16 - mar., oct. 21

Hawaiian Airlines flights from Kalispell to San Antonio

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

Hawaiian Airlines

Oct 9

FCA2:37 pmKalispell Glacier Park

8h 27m

1 stop

SAT12:04 amSan Antonio

Oct 21

SAT6:40 amSan Antonio

6h 42m

1 stop

FCA12:22 pmKalispell Glacier Park

$372

Find similar

Hawaiian Airlines

Oct 9

FCA2:37 pmKalispell Glacier Park

8h 27m

1 stop

SAT12:04 amSan Antonio

Oct 21

SAT6:40 amSan Antonio

6h 42m

1 stop

FCA12:22 pmKalispell Glacier Park

$382

Find similar

United Airlines flights from Kalispell to San Antonio

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

United Airlines

Oct 9

FCA4:08 pmKalispell Glacier Park

15h 30m

2 stops

SAT8:38 amSan Antonio

Oct 21

SAT5:30 amSan Antonio

11h 38m

2 stops

FCA4:08 pmKalispell Glacier Park

$530

Find similar

United Airlines

Oct 16

FCA5:06 pmKalispell Glacier Park

14h 32m

2 stops

SAT8:38 amSan Antonio

Oct 21

SAT11:45 amSan Antonio

10h 46m

2 stops

FCA9:31 pmKalispell Glacier Park

$555

Find similar

United Airlines

Oct 16

FCA5:06 pmKalispell Glacier Park

14h 32m

2 stops

SAT8:38 amSan Antonio

Oct 21

SAT11:45 amSan Antonio

10h 46m

2 stops

FCA9:31 pmKalispell Glacier Park

$596

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

jue. 10/9

2:37 pm-12:04 am

1 stop8h 27m

San Antonio

mar. 10/21

6:40 am-12:22 pm

1 stop6h 42m

$372

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

jue. 10/9

2:37 pm-12:04 am

1 stop8h 27m

San Antonio

mar. 10/21

6:40 am-12:22 pm

1 stop6h 42m

$382

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

jue. 10/16

6:10 pm-12:31 am

1 stop5h 21m

San Antonio

mar. 10/21

6:07 pm-11:09 pm

1 stop6h 02m

$383

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

jue. 10/16

6:10 pm-12:31 am

1 stop5h 21m

San Antonio

mar. 10/21

6:25 am-5:28 pm

2 stops12h 03m

$388

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

jue. 10/9

2:37 pm-12:04 am

1 stop8h 27m

San Antonio

mar. 10/21

7:56 pm-1:57 pm

2 stops19h 01m

$398

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

lun. 12/1

6:06 pm-12:35 am

1 stop5h 29m

San Antonio

vie. 12/5

6:05 pm-11:04 pm

1 stop5h 59m

$431

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

jue. 10/9

6:31 am-12:04 am

1 stop16h 33m

San Antonio

mar. 10/21

7:56 pm-1:57 pm

2 stops19h 01m

$451

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

mié. 12/3

5:00 am-2:49 pm

2 stops8h 49m

San Antonio

dom. 12/7

11:50 am-11:04 pm

2 stops12h 14m

$461

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

jue. 10/9

4:08 pm-8:38 am

2 stops15h 30m

San Antonio

mar. 10/21

5:30 am-4:08 pm

2 stops11h 38m

$530

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

jue. 10/16

5:06 pm-8:38 am

2 stops14h 32m

San Antonio

mar. 10/21

11:45 am-9:31 pm

2 stops10h 46m

$555

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted 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 October, then book flights to San Antonio from Kalispell during November instead. Flights to San Antonio in November, while not as cheap as those in October, still average around $400.

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.

Search flight deals

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 21m.
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 September 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 63% of the total bookings. Other popular airlines include Delta with 37%.

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 $199	Free Cancellation	Rating 7.9 7,961 reviews		Search Delta flights
United Airlines	PriceFrom $381	Free Cancellation	Rating 7.4 8,926 reviews		Search United Airlines flights

New Braunfels

Kerrville

Boerne

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.

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

Of course. momondo tracks the price of Kalispell to San Antonio flights. All you need is a valid email address and we will do the rest; it is that quick and easy.