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$183+ Cheap flights from Great Falls to San Antonio (GTF - 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SAT
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from Great Falls to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) 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 julio 30, 2025.

Round-trip from

$349
(Alaska Airlines)

One-way from

$183
(Delta)

Popular in

February

Cheapest in

August

Average price

$636
From Great Falls to San Antonio
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One-way flight from Great Falls to San Antonio
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Highest demand for flights based on searches. 5% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Great Falls to San Antonio

Cheapest flights from Great Falls to San Antonio
Explore the most affordable flight options available from Great Falls to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/146:15 pmGTF - SAT
1 stop28h 49mAlaska Airlines
mar. 10/216:40 amSAT - GTF
1 stop11h 55mAlaska Airlines
Deal found 7/29$349
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/196:06 pmGTF - SAT
1 stop5h 19mDelta
sáb. 8/2312:41 pmSAT - GTF
1 stop5h 45mDelta
Deal found 7/29$370
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/1110:14 amGTF - SAT
1 stop7h 22mMultiple Airlines
jue. 8/1412:39 pmSAT - GTF
2 stops21h 57mMultiple Airlines
Deal found 7/30$389
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.
mar. 8/197:00 amGTF - SAT
1 stop4h 48mUnited Airlines
vie. 8/224:37 pmSAT - GTF
1 stop5h 51mUnited Airlines
Deal found 7/29$450

Cheapflights Fare Finder

 
Customize your flight search to find flights from Great Falls 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 julio 30, 2025.
Use the filters below to find and compare flights from Great Falls to San Antonio that are best for you.

Fly from

Great Falls

Fly to

San Antonio

Route

Depart

Return

Price

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

mar. 10/14

6:15 pm-12:04 am

1 stop28h 49m

San Antonio

mar. 10/21

6:40 am-5:35 pm

1 stop11h 55m

$349

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

mar. 8/19

6:06 pm-12:25 am

1 stop5h 19m

San Antonio

sáb. 8/23

12:41 pm-5:26 pm

1 stop5h 45m

$370

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

lun. 8/11

10:14 am-6:36 pm

1 stop7h 22m

San Antonio

jue. 8/14

12:39 pm-9:36 am

2 stops21h 57m

$389

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

mar. 8/19

7:00 am-12:48 pm

1 stop4h 48m

San Antonio

vie. 8/22

4:37 pm-9:28 pm

1 stop5h 51m

$450

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

dom. 9/21

6:11 pm-12:19 am

1 stop5h 08m

$183

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

dom. 9/21

4:29 pm-3:31 pm

2 stops22h 02m

$348

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

dom. 9/21

7:00 am-3:26 pm

2 stops7h 26m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Great Falls to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Great Falls 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 Great Falls to San Antonio

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

Currently, August is the cheapest month in which you can book a flight from Great Falls to San Antonio (average of $295). Flying from Great Falls 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 Great Falls 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 julio 30, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Great Falls to San Antonio have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

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

    Currently priced at $349, Alaska Airlines will fly you from Great Falls to San Antonio and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $370 and $450, respectively. Alaska Airlines is currently priced 33% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Great Falls to San Antonio one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $183. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Great Falls to San Antonio for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Great Falls 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 Great Falls to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Great Falls to San Antonio (average of $295). Flying from Great Falls 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

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Top 2 airlines flying from Great Falls to San Antonio

Discover the top 2 airlines that operate flights from Great Falls 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$324Average$528FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$338Average$577FlexibilityNo cancel feeOn-time69%

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