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$362+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SAT
Jan 12 — Jan 191
Mon 1/12
Mon 1/19
1 adult, Economy
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Cheap 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 December 13, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/182:35 pmGTF - SAT
1 stop8h 12mUnited Airlines
Thu 12/254:55 pmSAT - GTF
1 stop6h 51mUnited Airlines
Deal found 12/11$647
This United Airlines deal was found by Cheapflights users on 12/12. 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 12/176:15 amGTF - SAT
1 stop5h 51mUnited Airlines
Thu 12/258:45 amSAT - GTF
1 stop5h 54mUnited Airlines
Deal found 12/12$706
This Delta deal was found by Cheapflights users on 12/12. 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 12/226:18 pmGTF - SAT
1 stop5h 24mDelta
Fri 12/266:40 amSAT - GTF
1 stop6h 51mDelta
Deal found 12/12$752
This Delta deal was found by Cheapflights users on 12/12. 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 12/175:30 amGTF - SAT
2 stops8h 20mDelta
Thu 12/2511:16 amSAT - GTF
2 stops12h 14mDelta
Deal found 12/12$763
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:35 pmGTF - SAT
1 stop5h 25mUnited Airlines
Fri 12/262:13 pmSAT - GTF
2 stops9h 33mUnited Airlines
Deal found 12/11$798
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:18 pmGTF - SAT
1 stop5h 24mDelta
Sun 1/46:40 amSAT - GTF
1 stop6h 51mDelta
Deal found 12/10$822

Find 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 December 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$362
(Alaska Airlines)

Popular in

November

Cheapest in

August

Average price

$647
Provider with most accurate pricing for Great Falls-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Great Falls-San Antonio flights.
Search Deals
From Great Falls to San Antonio
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 13, 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

Sun 2/1

5:59 pm-5:45 pm

1 stop22h 46m

San Antonio

Fri 2/6

6:46 pm-5:19 pm

1 stop23h 33m

$362

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sat 1/31

5:59 pm-5:45 pm

1 stop22h 46m

San Antonio

Wed 2/4

6:46 pm-5:19 pm

1 stop23h 33m

$362

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sun 2/8

5:59 pm-5:45 pm

1 stop22h 46m

San Antonio

Fri 2/13

6:06 pm-5:48 pm

1 stop24h 42m

$382

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Wed 1/7

1:15 pm-9:28 pm

1 stop7h 13m

San Antonio

Sun 1/11

11:12 am-10:30 pm

2 stops12h 18m

$394

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Wed 2/25

6:28 pm-5:14 pm

1 stop21h 46m

San Antonio

Mon 3/2

6:06 pm-4:17 pm

1 stop23h 11m

$408

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sun 2/1

5:59 pm-5:45 pm

1 stop22h 46m

San Antonio

Sat 2/7

6:46 pm-5:19 pm

1 stop23h 33m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Compare providers for flights from Great Falls 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 Great Falls 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 Great Falls-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Great Falls-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Great Falls-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-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 Great Falls-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 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.

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 13, 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
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

7.9

Food

7.3

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

7.9

Food

7.3

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
9,094 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

7.9

Food

7.3

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 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 $362, Alaska Airlines can have you in San Antonio from Great Falls in 22h 46m. Great Falls and San Antonio are separated by a distance of 1418 mi.

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

    Currently priced at $330, 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 $404. Delta is currently priced 43% 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.

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 December 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$330Average$557FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$404Average$656FlexibilityNo cancel feeOn-time69%

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