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$352+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SAT
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
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 December 21, 2025.

This Delta deal was found by Cheapflights users on 12/19. 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 12/255:20 amFCA - SAT
1 stop7h 25mDelta
Fri 1/96:20 pmSAT - FCA
1 stop5h 32mDelta
Deal found 12/19$403
This United Airlines deal was found by Cheapflights users on 12/19. 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.
Mon 12/225:15 pmFCA - SAT
1 stop5h 32mUnited Airlines
Wed 12/248:45 amSAT - FCA
1 stop5h 51mUnited Airlines
Deal found 12/19$529

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 December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$352
(Alaska Airlines)

Popular in

January

Cheapest in

December

Average price

$287
Provider with most accurate pricing for Kalispell Glacier Park-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Kalispell Glacier Park-San Antonio flights.
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From Kalispell Glacier Park to San Antonio
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 21, 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 1/22

1:54 pm-5:45 pm

1 stop26h 51m

San Antonio

Mon 1/26

6:46 pm-12:14 pm

1 stop18h 28m

$352

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 2/1

6:05 pm-12:41 am

1 stop5h 36m

San Antonio

Mon 2/9

6:30 am-2:25 pm

1 stop8h 55m

$358

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 1/22

6:00 am-1:09 pm

1 stop6h 09m

San Antonio

Mon 1/26

11:43 am-9:59 pm

2 stops11h 16m

$372

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 2/1

7:46 pm-5:45 pm

1 stop20h 59m

San Antonio

Mon 2/9

6:46 pm-1:14 pm

2 stops19h 28m

$391

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Tue 12/30

5:50 pm-12:42 am

1 stop5h 52m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Kalispell-San Antonio flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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, October is the cheapest month in which you can book a flight from Kalispell to San Antonio (average of $151). Flying from Kalispell to San Antonio in January is currently the most expensive (average of $355). 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 December 21, 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
7.9
Good
8,021 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,021 reviews
Delta
7.9
Good
8,021 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,099 reviews
Delta
7.9
Good
8,021 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 36m. 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 $276. Another option worth looking into is United Airlines, starting at $287 round trip. Users have found that Delta is 45% 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, October is the cheapest month in which you can book a flight from Kalispell to San Antonio (average of $151). Flying from Kalispell to San Antonio in January is currently the most expensive (average of $355). 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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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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$401FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$287Average$520FlexibilityNo cancel feeOn-time69%

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