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$215+ Cheap flights from Kalispell to San Antonio (FCA - SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SAT
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
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Cheap 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 August 3, 2026.

This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:26 pm
FCA
-
SAT
1 stop6h 24m
American Airlines
Sat 10/37:00 am
SAT
-
FCA
1 stop6h 04m
American Airlines
Deal found 8/1$359
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:46 pm
FCA
-
SAT
1 stop16h 34m
Multiple Airlines
Thu 9/178:20 pm
SAT
-
FCA
2 stops24h 23m
Multiple Airlines
Deal found 7/31$366
This United Airlines deal was found by Cheapflights users on 8/1. 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 10/12:30 pm
FCA
-
SAT
1 stop5h 12m
United Airlines
Sat 10/311:47 am
SAT
-
FCA
2 stops10h 49m
United Airlines
Deal found 8/1$420
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/135:04 pm
FCA
-
SAT
1 stop5h 53m
United Airlines
Mon 8/175:30 am
SAT
-
FCA
1 stop5h 34m
United Airlines
Deal found 7/29$449
This United Airlines deal was found by Cheapflights users on 7/29. 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 12/36:31 am
FCA
-
SAT
1 stop5h 34m
United Airlines
Mon 12/74:45 pm
SAT
-
FCA
1 stop5h 45m
United Airlines
Deal found 7/29$459
This Delta deal was found by Cheapflights users on 7/31. 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 9/146:00 pm
FCA
-
SAT
1 stop5h 31m
Delta
Thu 9/176:07 pm
SAT
-
FCA
1 stop6h 36m
Delta
Deal found 7/31$489
This Delta deal was found by Cheapflights users on 8/2. 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.
Tue 9/156:00 pm
FCA
-
SAT
1 stop5h 31m
Delta
Fri 9/186:01 pm
SAT
-
FCA
1 stop5h 53m
Delta
Deal found 8/2$499
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:25 pm
FCA
-
SAT
2 stops30h 06m
Multiple Airlines
Fri 9/1112:39 pm
SAT
-
FCA
1 stop8h 14m
Multiple Airlines
Deal found 7/29$502

Find 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 August 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$359
(American Airlines)

One-way from

$215
(United Airlines)

Popular in

March

Cheapest in

January

Average price

$418
Provider with most accurate pricing for Kalispell Glacier Park-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kalispell Glacier Park-San Antonio flights.
Search Deals
From Kalispell Glacier Park to San Antonio
Search Deals
One-way flight from Kalispell Glacier Park to San Antonio
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 August 3, 2026.
Use the filters below to find and compare flights from Kalispell to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Mon 9/14

8:46 pm-2:20 pm

1 stop16h 34m

San Antonio

Thu 9/17

8:20 pm-7:43 pm

2 stops24h 23m

$366

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 8/13

5:04 pm-11:57 pm

1 stop5h 53m

San Antonio

Mon 8/17

5:30 am-10:04 am

1 stop5h 34m

$449
Quickest round-trip

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Fri 1/29

6:31 am-1:05 pm

1 stop5h 34m

San Antonio

Mon 2/1

4:45 pm-9:30 pm

1 stop5h 45m

$459

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 12/3

6:31 am-1:05 pm

1 stop5h 34m

San Antonio

Mon 12/7

4:45 pm-9:30 pm

1 stop5h 45m

$459

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 1/10

12:51 pm-6:38 pm

1 stop28h 47m

San Antonio

Wed 1/13

8:57 am-11:59 pm

2 stops16h 02m

$485

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Mon 9/14

6:00 pm-12:31 am

1 stop5h 31m

San Antonio

Thu 9/17

6:07 pm-11:43 pm

1 stop6h 36m

$489
Cheapest one-way
Quickest one-way

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Mon 8/17

5:04 pm-11:57 pm

1 stop5h 53m

$215

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 8/16

12:02 pm-11:56 pm

2 stops10h 54m

$638

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 8/16

6:33 am-10:15 am

3 stops26h 42m

$850

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Sorted by cheapest first

Compare providers for flights from Kalispell to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kalispell to San Antonio in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kalispell-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kalispell-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kalispell-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kalispell-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kalispell-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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 August 3, 2026.
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
7.8
Good
8,483 reviews

Overall

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,483 reviews
Delta
7.8
Good
8,483 reviews

Overall

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,058 reviews
Delta
7.8
Good
8,483 reviews

Overall

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 53m. There are 1543 mi between Kalispell and San Antonio.

  • 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 $276. Another option worth looking into is United Airlines, starting at $282 round trip. Users have found that Delta is 37% 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.

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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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 August 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$401FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$282Average$401FlexibilityNo cancel feeOn-time69%

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