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Cheap flights from Great Falls to San Antonio from $318

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to San Antonio departing on 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Great Falls to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:40 am - 1:31 pm
GTF
-
SAT
6h 51m
1 stop
Delta Logo
6:45 am - 12:35 pm
SAT
-
GTF
6h 50m
1 stop
$318Delta
Thu, Aug 27 - Sat, Sep 12
Delta Logo
5:40 am - 2:57 pm
GTF
-
SAT
8h 17m
2 stops
Delta Logo
6:45 am - 12:35 pm
SAT
-
GTF
6h 50m
1 stop
$324Delta
Thu, Aug 27 - Sat, Sep 12
Delta Logo
1:08 pm - 11:56 pm
GTF
-
SAT
9h 48m
2 stops
Delta Logo
7:30 am - 5:38 pm
SAT
-
GTF
11h 08m
2 stops
$329Delta
Thu, Aug 13 - Sun, Aug 23
United Airlines Logo
2:37 pm - 8:42 pm
GTF
-
SAT
5h 05m
1 stop
United Airlines Logo
4:50 pm - 9:22 pm
SAT
-
GTF
5h 32m
1 stop
$351United Airlines
Fri, Sep 25 - Sat, Sep 26
Delta Logo
1:08 pm - 11:56 pm
GTF
-
SAT
9h 48m
2 stops
Delta Logo
2:22 pm - 10:29 pm
SAT
-
GTF
9h 07m
2 stops
$354Delta
Thu, Aug 27 - Wed, Sep 2
United Airlines Logo
2:37 pm - 8:42 pm
GTF
-
SAT
5h 05m
1 stop
United Airlines Logo
11:47 am - 9:22 pm
SAT
-
GTF
10h 35m
2 stops
$356United Airlines
Fri, Sep 25 - Sat, Sep 26
Delta Logo
5:40 am - 2:51 pm
GTF
-
SAT
8h 11m
2 stops
Delta Logo
5:30 am - 5:38 pm
SAT
-
GTF
13h 08m
2 stops
$394Delta
Thu, Oct 1 - Tue, Oct 6
United Airlines Logo
6:15 am - 12:58 pm
GTF
-
SAT
5h 43m
1 stop
United Airlines Logo
4:50 pm - 9:22 pm
SAT
-
GTF
5h 32m
1 stop
$408United Airlines
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
6:15 am - 12:58 pm
GTF
-
SAT
5h 43m
1 stop
United Airlines Logo
5:30 am - 1:41 pm
SAT
-
GTF
9h 11m
2 stops
$414United Airlines
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
2:25 pm - 8:52 pm
GTF
-
SAT
5h 27m
1 stop
United Airlines Logo
4:39 pm - 9:12 pm
SAT
-
GTF
5h 33m
1 stop
$435United Airlines
Tue, Sep 8 - Sat, Sep 19

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United Airlines flights from Great Falls to San Antonio

Our best United Airlines deals on Great Falls to San Antonio flight tickets
United Airlines
Sep 25
GTF2:37 pmGreat Falls
5h 05m
1 stop
SAT8:42 pmSan Antonio
Sep 26
SAT4:50 pmSan Antonio
5h 32m
1 stop
GTF9:22 pmGreat Falls
$351
United Airlines
Sep 25
GTF2:37 pmGreat Falls
5h 05m
1 stop
SAT8:42 pmSan Antonio
Sep 26
SAT11:47 amSan Antonio
10h 35m
2 stops
GTF9:22 pmGreat Falls
$356
United Airlines
Sep 30
GTF6:15 amGreat Falls
5h 43m
1 stop
SAT12:58 pmSan Antonio
Oct 3
SAT4:50 pmSan Antonio
5h 32m
1 stop
GTF9:22 pmGreat Falls
$408

Delta flights from Great Falls to San Antonio

Our best Delta deals on Great Falls to San Antonio flight tickets
Delta
Aug 27
GTF5:40 amGreat Falls
6h 51m
1 stop
SAT1:31 pmSan Antonio
Sep 12
SAT6:45 amSan Antonio
6h 50m
1 stop
GTF12:35 pmGreat Falls
$318
Delta
Aug 27
GTF5:40 amGreat Falls
8h 17m
2 stops
SAT2:57 pmSan Antonio
Sep 12
SAT6:45 amSan Antonio
6h 50m
1 stop
GTF12:35 pmGreat Falls
$324
Delta
Sep 4
GTF1:08 pmGreat Falls
9h 48m
2 stops
SAT11:56 pmSan Antonio
Sep 19
SAT7:20 amSan Antonio
11h 21m
2 stops
GTF5:41 pmGreat Falls
$329

momondo 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, momondo users made 832,500 searches. Data last updated July 5, 2026.
Use the filters below to find and compare flights from Great Falls to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 8/27

5:40 am-1:31 pm

1 stop6h 51m

San Antonio

Sat 9/12

6:45 am-12:35 pm

1 stop6h 50m

$318

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 8/27

5:40 am-2:57 pm

2 stops8h 17m

San Antonio

Sat 9/12

6:45 am-12:35 pm

1 stop6h 50m

$324

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 8/13

1:08 pm-11:56 pm

2 stops9h 48m

San Antonio

Sun 8/23

7:30 am-5:38 pm

2 stops11h 08m

$329
Quickest round-trip

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Fri 9/25

2:37 pm-8:42 pm

1 stop5h 05m

San Antonio

Sat 9/26

4:50 pm-9:22 pm

1 stop5h 32m

$351

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 8/27

1:08 pm-11:56 pm

2 stops9h 48m

San Antonio

Wed 9/2

2:22 pm-10:29 pm

2 stops9h 07m

$354

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Fri 9/25

2:37 pm-8:42 pm

1 stop5h 05m

San Antonio

Sat 9/26

11:47 am-9:22 pm

2 stops10h 35m

$356

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 10/1

5:40 am-2:51 pm

2 stops8h 11m

San Antonio

Tue 10/6

5:30 am-5:38 pm

2 stops13h 08m

$394

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Wed 9/30

6:15 am-12:58 pm

1 stop5h 43m

San Antonio

Sat 10/3

4:50 pm-9:22 pm

1 stop5h 32m

$408

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Wed 9/30

6:15 am-12:58 pm

1 stop5h 43m

San Antonio

Sat 10/3

5:30 am-1:41 pm

2 stops9h 11m

$414

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Tue 9/8

2:25 pm-8:52 pm

1 stop5h 27m

San Antonio

Sat 9/19

4:39 pm-9:12 pm

1 stop5h 33m

$435

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Antonio from

How to get the cheapest flight ticket from Great Falls to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Great Falls and San Antonio?

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of June, then book flights to San Antonio from Great Falls during April instead. Flights to San Antonio in April, while not as cheap as those in June, still average around $378.

When to book flights from Great Falls to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Great Falls to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Great Falls to San Antonio (GTF to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to San Antonio

Fastest flight time

5h 01m

Direct flights

None
The fastest flight from Great Falls to San Antonio takes 5h 01m
There are no direct flights from Great Falls to San Antonio. There are no popular flight routes from Great Falls to San Antonio.
Search flight deals

Frequently asked questions about flying from Great Falls to San Antonio

  • How far is Great Falls to San Antonio by plane?

    The straight-line distance from Great Falls to San Antonio is 1422.9 mi. In terms of flight time, this usually takes a little over 5h 01m.

  • When did momondo last update prices for flights from Great Falls Airport to San Antonio Airport?

    Prices for flights from Great Falls Airport to San Antonio Airport refresh daily.

  • How many operators does momondo search for flights from Great Falls Airport to San Antonio Airport?

  • How old do you have to be to fly from Great Falls Airport to San Antonio Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Great Falls Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Great Falls to San Antonio?

Best airlines flying from Great Falls to San Antonio

Compare and see reviews for airlines that fly from Great Falls to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $333Free CancellationRating
7.8
8,451 reviews
Search Delta flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
9,933 reviews
Search United Airlines flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Pleasanton
Boerne
Schertz

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to San Antonio?

Finding the right flight to San Antonio from Great Falls is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

Can I find flights from Great Falls to San Antonio with flexible booking policies on momondo?

Flights from Great Falls to San Antonio with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Great Falls to San Antonio?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Antonio from Great Falls.

I’m not ready to book a flight from Great Falls to San Antonio right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Great Falls to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.

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