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$180+ 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
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$364
(Delta)

One-way from

$180
(Delta)

Popular in

February

Cheapest in

September

Average price

$578
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. 8% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 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 July 3, 2025.

This Delta deal was found by Cheapflights users on 7/3. 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 8/226:06 pmGTF - SAT
1 stop5h 19mDelta
Tue 8/262:00 pmSAT - GTF
1 stop7h 34mDelta
Deal found 7/3$364
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 7/266:25 amGTF - SAT
1 stop5h 22mUnited Airlines
Tue 7/298:55 amSAT - GTF
1 stop5h 41mUnited Airlines
Deal found 7/2$590

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 July 3, 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

Fri 8/22

6:06 pm-12:25 am

1 stop5h 19m

San Antonio

Tue 8/26

2:00 pm-8:34 pm

1 stop7h 34m

$364

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sat 7/26

6:25 am-12:47 pm

1 stop5h 22m

San Antonio

Tue 7/29

8:55 am-1:36 pm

1 stop5h 41m

$590

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sun 9/21

6:11 pm-12:19 am

1 stop5h 08m

$180

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sun 9/21

4:29 pm-6:48 pm

1 stop25h 19m

$252

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sun 8/17

4:55 pm-6:37 pm

1 stop24h 42m

$273

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Sun 9/21

2:35 pm-10:48 pm

3 stops31h 13m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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 July 3, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian 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

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $364, 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 $590. Delta is currently priced 28% 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 $180. However, be on the lookout for offers from Alaska Airlines and Hawaiian 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

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$324Average$451FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$338Average$577FlexibilityNo cancel feeOn-time69%

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