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$342+ Cheap flights from Great Falls to San Antonio (GTF - 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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SAT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$342
(Kiwi.com)

Popular in

February

Cheapest in

October

Average price

$564
From Great Falls to San Antonio
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/11. 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 12/2210:25 pmGTF - SAT
1 stop29h 44mMultiple Airlines
Sun 1/46:44 pmSAT - GTF
1 stop27h 56mMultiple Airlines
Deal found 9/11$342
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Fri 12/1910:25 pmGTF - SAT
1 stop29h 44mMultiple Airlines
Sun 1/46:44 pmSAT - GTF
1 stop27h 56mMultiple Airlines
Deal found 9/11$368
This Delta deal was found by Cheapflights users on 9/11. 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 12/186:10 pmGTF - SAT
1 stop5h 30mDelta
Mon 1/56:05 pmSAT - GTF
1 stop5h 48mDelta
Deal found 9/11$372
This Delta deal was found by Cheapflights users on 9/11. 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 12/186:10 pmGTF - SAT
1 stop5h 30mDelta
Fri 1/26:00 amSAT - GTF
2 stops12h 39mDelta
Deal found 9/11$378
This Delta deal was found by Cheapflights users on 9/11. 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 12/226:19 pmGTF - SAT
2 stops14h 52mDelta
Mon 1/56:30 amSAT - GTF
2 stops12h 14mDelta
Deal found 9/11$383
This Delta deal was found by Cheapflights users on 9/11. 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 12/216:19 pmGTF - SAT
1 stop5h 26mDelta
Fri 1/26:40 amSAT - GTF
1 stop6h 51mDelta
Deal found 9/11$424
This Delta deal was found by Cheapflights users on 9/11. 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 12/216:19 pmGTF - SAT
1 stop5h 26mDelta
Tue 1/66:30 amSAT - GTF
2 stops12h 14mDelta
Deal found 9/11$430
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/146:15 pmGTF - SAT
1 stop28h 49mAlaska Airlines
Tue 10/217:56 pmSAT - GTF
1 stop22h 39mAlaska Airlines
Deal found 9/10$432
This Delta deal was found by Cheapflights users on 9/11. 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 12/196:10 pmGTF - SAT
1 stop5h 30mDelta
Fri 1/26:40 amSAT - GTF
1 stop6h 51mDelta
Deal found 9/11$434
This Delta deal was found by Cheapflights users on 9/11. 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 12/196:10 pmGTF - SAT
1 stop5h 30mDelta
Mon 1/56:30 amSAT - GTF
2 stops12h 14mDelta
Deal found 9/11$440
This Delta deal was found by Cheapflights users on 9/11. 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 12/186:10 pmGTF - SAT
1 stop5h 30mDelta
Sat 1/36:40 amSAT - GTF
1 stop6h 51mDelta
Deal found 9/11$455

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 September 11, 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

Tue 10/14

6:09 pm-12:31 am

1 stop5h 22m

San Antonio

Tue 10/21

6:07 pm-11:06 pm

1 stop5h 59m

$372

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Wed 11/5

6:09 pm-12:31 am

1 stop5h 22m

San Antonio

Sat 11/8

12:23 pm-11:06 pm

2 stops11h 43m

$378

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Tue 10/14

6:15 pm-12:04 am

1 stop28h 49m

San Antonio

Tue 10/21

7:56 pm-5:35 pm

1 stop22h 39m

$432

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Mon 11/10

2:30 pm-10:27 pm

1 stop6h 57m

San Antonio

Sat 11/15

4:30 pm-10:39 pm

1 stop7h 09m

$476

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Fri 10/17

2:31 pm-12:45 pm

1 stop21h 14m

San Antonio

Mon 10/20

7:38 pm-1:26 pm

2 stops18h 48m

$482

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 10/16

6:15 pm-12:04 am

1 stop28h 49m

San Antonio

Mon 10/20

7:56 pm-5:35 pm

1 stop22h 39m

$513

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Fri 10/17

10:27 pm-11:40 pm

1 stop24h 13m

San Antonio

Mon 10/20

7:00 am-9:32 pm

1 stop15h 32m

$537

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 9/25

6:11 pm-12:19 am

1 stop5h 08m

San Antonio

Mon 9/29

7:45 am-12:25 pm

1 stop5h 40m

$538

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Tue 9/23

7:00 am-12:48 pm

1 stop4h 48m

$361

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sun 9/21

6:11 pm-12:19 am

1 stop5h 08m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 13 results
1
2

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.

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 11, 2025.
See what other customers who have flown with 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.
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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 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.

  • How long is the flight from Great Falls to San Antonio?

    For as low as $372, Delta can have you in San Antonio from Great Falls in 5h 22m. Great Falls and San Antonio are separated by a distance of 1418 mi. This flight may include one or multiple stops.

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

    Currently priced at $324, Delta will fly you from Great Falls to San Antonio and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $338. Delta is currently priced 39% below the average price you’ll pay for this route.

  • 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
Kerrville

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$324Average$520FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$338Average$567FlexibilityNo cancel feeOn-time69%

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