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$372+ Cheap flights from Kalispell to San Antonio (FCA - SAT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SAT
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Kalispell to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$372
(Hawaiian Airlines)

Popular in

January

Cheapest in

October

Average price

$535
From Kalispell Glacier Park to San Antonio
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Kalispell to San Antonio

Cheapest flights from Kalispell to San Antonio
Explore the most affordable flight options available from Kalispell to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/92:37 pmFCA - SAT
1 stop8h 27mHawaiian Airlines
Tue 10/216:40 amSAT - FCA
1 stop6h 42mHawaiian Airlines
Deal found 9/15$372
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:10 pmFCA - SAT
1 stop5h 21mDelta
Tue 10/216:07 pmSAT - FCA
1 stop6h 02mDelta
Deal found 9/15$383
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:06 pmFCA - SAT
1 stop5h 29mDelta
Fri 12/56:05 pmSAT - FCA
1 stop5h 59mDelta
Deal found 9/15$431
This Alaska Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:31 amFCA - SAT
1 stop16h 33mAlaska Airlines
Tue 10/217:56 pmSAT - FCA
2 stops19h 01mAlaska Airlines
Deal found 9/15$451
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:10 pmFCA - SAT
1 stop5h 21mDelta
Tue 10/216:25 amSAT - FCA
2 stops12h 03mDelta
Deal found 9/14$456
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:00 amFCA - SAT
2 stops8h 49mDelta
Sun 12/711:50 amSAT - FCA
2 stops12h 14mDelta
Deal found 9/15$461
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/94:08 pmFCA - SAT
2 stops15h 30mUnited Airlines
Tue 10/215:30 amSAT - FCA
2 stops11h 38mUnited Airlines
Deal found 9/15$530
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:06 pmFCA - SAT
2 stops14h 32mUnited Airlines
Tue 10/2111:45 amSAT - FCA
2 stops10h 46mUnited Airlines
Deal found 9/15$555

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kalispell to San Antonio 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, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Kalispell to San Antonio that are best for you.

Fly from

Kalispell

Fly to

San Antonio

Route

Depart

Return

Price

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 10/9

2:37 pm-12:04 am

1 stop8h 27m

San Antonio

Tue 10/21

6:40 am-12:22 pm

1 stop6h 42m

$372

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 10/16

6:10 pm-12:31 am

1 stop5h 21m

San Antonio

Tue 10/21

6:07 pm-11:09 pm

1 stop6h 02m

$383

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Wed 12/3

6:06 pm-12:40 am

1 stop5h 34m

San Antonio

Sun 12/7

6:05 pm-11:04 pm

1 stop5h 59m

$383

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Wed 12/3

2:37 pm-8:53 pm

1 stop5h 16m

San Antonio

Sun 12/7

5:20 am-1:35 pm

2 stops9h 15m

$388

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Mon 12/1

6:06 pm-12:35 am

1 stop5h 29m

San Antonio

Fri 12/5

6:05 pm-11:04 pm

1 stop5h 59m

$431

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 10/9

6:10 pm-12:31 am

1 stop5h 21m

San Antonio

Tue 10/21

6:25 am-5:28 pm

2 stops12h 03m

$456

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 10/16

5:06 pm-8:38 am

2 stops14h 32m

San Antonio

Tue 10/21

11:45 am-9:31 pm

2 stops10h 46m

$555

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 10/9

10:50 am-10:35 pm

2 stops10h 45m

San Antonio

Tue 10/21

5:30 am-4:08 pm

2 stops11h 38m

$577

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Mon 12/1

2:38 pm-8:41 am

2 stops17h 03m

San Antonio

Fri 12/5

7:35 pm-9:46 pm

2 stops27h 11m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Kalispell to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Kalispell with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Kalispell to San Antonio

What is the cheapest month to book a flight from Kalispell to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Kalispell to San Antonio (average of $295). Flying from Kalispell to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Kalispell to San Antonio?

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with Delta and United Airlines from Kalispell to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Kalispell to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Kalispell to San Antonio?

    Departing from Kalispell to San Antonio will take you 5h 16m. There are 1543 mi between Kalispell and San Antonio. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Kalispell to San Antonio round-trip?

    Flying on Delta is currently your cheapest option to San Antonio, with prices starting at $199. Another option worth looking into is United Airlines, starting at $381 round trip. Users have found that Delta is 62% cheaper than the other options available to this destination.

  • Can I find deals for flights from Kalispell to San Antonio that include hotel bookings?

    Yes. In addition to deals on Kalispell to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kalispell to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kalispell to San Antonio.

  • Can I find deals for business class flights from Kalispell to San Antonio?

    Yes. Cheapflights offers flight deals from Kalispell to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kalispell to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Kalispell to San Antonio (average of $295). Flying from Kalispell to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for Kalispell to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Kalispell to San Antonio

Discover the top 2 airlines that operate flights from Kalispell to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$199Average$446FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$381Average$592FlexibilityNo cancel feeOn-time69%

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