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$150+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SAT
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
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 February 19, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/17. 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.
Wed 10/288:00 pm
FCA
-
SAT
1 stop8h 41m
Alaska Airlines
Sat 10/317:00 am
SAT
-
FCA
1 stop9h 35m
Alaska Airlines
Deal found 2/17$299
This Delta deal was found by Cheapflights users on 2/18. 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.
Sun 4/55:56 pm
FCA
-
SAT
1 stop5h 20m
Delta
Wed 4/85:55 pm
SAT
-
FCA
1 stop6h 46m
Delta
Deal found 2/18$329
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Wed 10/282:29 pm
FCA
-
SAT
2 stops7h 09m
United Airlines
Sat 10/314:45 pm
SAT
-
FCA
1 stop5h 45m
United Airlines
Deal found 2/17$394
This Delta deal was found by Cheapflights users on 2/16. 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.
Fri 4/105:09 am
FCA
-
SAT
2 stops8h 29m
Delta
Sun 4/196:39 am
SAT
-
FCA
1 stop8h 15m
Delta
Deal found 2/16$445
This Alaska Airlines deal was found by Cheapflights users on 2/17. 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.
Tue 3/248:26 pm
FCA
-
SAT
1 stop19h 28m
Alaska Airlines
Thu 4/25:50 pm
SAT
-
FCA
1 stop6h 57m
Alaska Airlines
Deal found 2/17$464
This Delta deal was found by Cheapflights users on 2/18. 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 3/45:00 am
FCA
-
SAT
1 stop7h 43m
Delta
Tue 3/107:35 am
SAT
-
FCA
2 stops10h 40m
Delta
Deal found 2/18$509
This Alaska Airlines deal was found by Cheapflights users on 2/15. 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.
Wed 3/47:53 pm
FCA
-
SAT
1 stop20h 21m
Alaska Airlines
Tue 3/106:06 pm
SAT
-
FCA
1 stop19h 06m
Alaska Airlines
Deal found 2/15$526

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 February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$299
(Delta)

One-way from

$150
(Delta)

Popular in

March

Cheapest in

January

Average price

$460
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. 10% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 19, 2026.
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

Fri 4/10

5:56 pm-12:16 am

1 stop5h 20m

San Antonio

Sun 4/19

6:39 am-1:54 pm

1 stop8h 15m

$299

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Sun 4/5

5:56 pm-12:16 am

1 stop5h 20m

San Antonio

Wed 4/8

5:55 pm-11:41 pm

1 stop6h 46m

$329

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Wed 5/20

6:13 pm-12:13 am

1 stop5h 00m

$150

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Fri 3/20

12:55 pm-9:06 am

3 stops43h 11m

$464

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Wed 5/20

6:15 am-7:25 pm

3 stops36h 10m

$618

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Fri 3/20

2:41 pm-8:54 pm

1 stop5h 13m

$802

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

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 February.
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.

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 June is currently the most expensive (average of $340). 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 February 19, 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
7.9
Good
8,212 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

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
8,212 reviews
Delta
7.9
Good
8,212 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

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
9,321 reviews
Delta
7.9
Good
8,212 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

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 20m. 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 39% 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 June is currently the most expensive (average of $340). 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 February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$400FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$282Average$430FlexibilityNo cancel feeOn-time69%

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