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Cheap flights from Montana to San Antonio from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to San Antonio departing on 10/7. 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 Montana to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:23 pm - 12:25 amBZN  Bozeman Gallatin Field-SAT San Antonio
5h 02m1 stop Salt Lake City
Delta Logo
6:24 pm - 11:32 pmSAT  San Antonio-BZN Bozeman Gallatin Field
6h 08m1 stop Minneapolis St Paul
$257Delta
Wed, Nov 18 - Tue, Dec 1
Delta Logo
6:00 am - 1:40 pmBZN  Bozeman Gallatin Field-SAT San Antonio
6h 40m1 stop Salt Lake City
Delta Logo
6:01 pm - 12:19 amSAT  San Antonio-BZN Bozeman Gallatin Field
7h 18m1 stop Salt Lake City
$257Delta
Wed, Sep 16 - Mon, Sep 21
Southwest Logo
1:35 pm - 9:30 pmBZN  Bozeman Gallatin Field-SAT San Antonio
6h 55m1 stop Denver Intl
Southwest Logo
6:10 pm - 10:30 pmSAT  San Antonio-BZN Bozeman Gallatin Field
5h 20m1 stop Denver Intl
$257Southwest
Thu, Sep 10 - Mon, Sep 14
Southwest Logo
2:30 pm - 11:55 pmBZN  Bozeman Gallatin Field-SAT San Antonio
8h 25m1 stop San Diego
Southwest Logo
6:10 pm - 10:30 pmSAT  San Antonio-BZN Bozeman Gallatin Field
5h 20m1 stop Denver Intl
$257Southwest
Thu, Sep 17 - Mon, Sep 21
Delta Logo
6:00 am - 1:40 pmBZN  Bozeman Gallatin Field-SAT San Antonio
6h 40m1 stop Salt Lake City
Delta Logo
6:07 pm - 11:19 pmSAT  San Antonio-BZN Bozeman Gallatin Field
6h 12m1 stop Minneapolis St Paul
$257Delta
Wed, Sep 16 - Mon, Sep 21
Southwest Logo
2:30 pm - 11:55 pmBZN  Bozeman Gallatin Field-SAT San Antonio
8h 25m1 stop San Diego
Southwest Logo
6:30 pm - 10:30 pmSAT  San Antonio-BZN Bozeman Gallatin Field
5h 00m1 stop Denver Intl
$257Southwest
Thu, Sep 17 - Tue, Sep 22
United Airlines Logo
6:30 am - 12:43 pmBZN  Bozeman Gallatin Field-SAT San Antonio
5h 13m1 stop Denver Intl
United Airlines Logo
4:39 pm - 9:21 pmSAT  San Antonio-BZN Bozeman Gallatin Field
5h 42m1 stop Denver Intl
$291United Airlines
Wed, Sep 9 - Sat, Sep 12
Multiple Airlines Logo
8:39 pm - 11:48 amMSO  Missoula Johnson-Bell Field-SAT San Antonio
14h 09m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
11:08 am - 4:25 pmSAT  San Antonio-MSO Missoula Johnson-Bell Field
30h 17m2 stops Denver Intl Las Vegas Harry Reid Intl
$294Multiple Airlines
Sun, Nov 1 - Wed, Nov 4
United Airlines Logo
4:32 pm - 11:57 pmBZN  Bozeman Gallatin Field-SAT San Antonio
6h 25m1 stop Denver Intl
United Airlines Logo
4:39 pm - 9:21 pmSAT  San Antonio-BZN Bozeman Gallatin Field
5h 42m1 stop Denver Intl
$296United Airlines
Wed, Sep 16 - Sat, Sep 19
Alaska Airlines Logo
4:59 pm - 4:28 pmGTF  Great Falls-SAT San Antonio
22h 29m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:26 pm - 4:19 pmSAT  San Antonio-GTF Great Falls
23h 53m1 stop Seattle/Tacoma Intl
$358Alaska Airlines
Mon, Nov 2 - Fri, Nov 6

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United Airlines flights from Montana to San Antonio

Our best United Airlines deals on Montana to San Antonio flight tickets
United Airlines
Sep 9
BZN6:30 amBozeman Gallatin Field
5h 13m
1 stop
SAT12:43 pmSan Antonio
Sep 12
SAT4:39 pmSan Antonio
5h 42m
1 stop
BZN9:21 pmBozeman Gallatin Field
$291
United Airlines
Sep 16
BZN4:32 pmBozeman Gallatin Field
6h 25m
1 stop
SAT11:57 pmSan Antonio
Sep 19
SAT4:39 pmSan Antonio
5h 42m
1 stop
BZN9:21 pmBozeman Gallatin Field
$296
United Airlines
Sep 16
BZN4:32 pmBozeman Gallatin Field
6h 25m
1 stop
SAT11:57 pmSan Antonio
Sep 21
SAT5:30 amSan Antonio
9h 45m
2 stops
BZN2:15 pmBozeman Gallatin Field
$301

Alaska Airlines flights from Montana to San Antonio

Our best Alaska Airlines deals on Montana to San Antonio flight tickets
Alaska Airlines
Nov 2
GTF4:59 pmGreat Falls
22h 29m
1 stop
SAT4:28 pmSan Antonio
Nov 6
SAT5:26 pmSan Antonio
23h 53m
1 stop
GTF4:19 pmGreat Falls
$358
Alaska Airlines
Oct 19
FCA7:45 pmKalispell Glacier Park
19h 19m
2 stops
SAT4:04 pmSan Antonio
Oct 24
SAT8:17 amSan Antonio
11h 48m
2 stops
FCA7:05 pmKalispell Glacier Park
$470
Alaska Airlines
Sep 8
BIL7:29 pmBillings Logan Intl
19h 50m
1 stop
SAT4:19 pmSan Antonio
Sep 11
SAT5:41 pmSan Antonio
18h 59m
1 stop
BIL11:40 amBillings Logan Intl
$487

momondo Fare Finder

 
Customize your flight search to find flights from Montana 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 August 16, 2026.
Use the filters below to find and compare flights from Montana to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanSan Antonio

BZN Bozeman Gallatin Field - SAT San Antonio

BZNSAT

Bozeman Gallatin Field

Wed 11/18

6:23 pm-12:25 am

1 stop5h 02m

San Antonio

Tue 12/1

6:24 pm-11:32 pm

1 stop6h 08m

$257

BozemanSan Antonio

BZN Bozeman Gallatin Field - SAT San Antonio

BZNSAT

Bozeman Gallatin Field

Wed 9/16

6:00 am-1:40 pm

1 stop6h 40m

San Antonio

Mon 9/21

6:01 pm-12:19 am

1 stop7h 18m

$257

BozemanSan Antonio

BZN Bozeman Gallatin Field - SAT San Antonio

BZNSAT

Bozeman Gallatin Field

Thu 9/10

1:35 pm-9:30 pm

1 stop6h 55m

San Antonio

Mon 9/14

6:10 pm-10:30 pm

1 stop5h 20m

$257

BozemanSan Antonio

BZN Bozeman Gallatin Field - SAT San Antonio

BZNSAT

Bozeman Gallatin Field

Thu 9/17

2:30 pm-11:55 pm

1 stop8h 25m

San Antonio

Mon 9/21

6:10 pm-10:30 pm

1 stop5h 20m

$257

BozemanSan Antonio

BZN Bozeman Gallatin Field - SAT San Antonio

BZNSAT

Bozeman Gallatin Field

Wed 9/16

6:00 am-1:40 pm

1 stop6h 40m

San Antonio

Mon 9/21

6:07 pm-11:19 pm

1 stop6h 12m

$257

BozemanSan Antonio

BZN Bozeman Gallatin Field - SAT San Antonio

BZNSAT

Bozeman Gallatin Field

Thu 9/17

2:30 pm-11:55 pm

1 stop8h 25m

San Antonio

Tue 9/22

6:30 pm-10:30 pm

1 stop5h 00m

$257
Quickest round-trip

BozemanSan Antonio

BZN Bozeman Gallatin Field - SAT San Antonio

BZNSAT

Bozeman Gallatin Field

Wed 9/9

6:30 am-12:43 pm

1 stop5h 13m

San Antonio

Sat 9/12

4:39 pm-9:21 pm

1 stop5h 42m

$291

MissoulaSan Antonio

MSO Missoula Johnson-Bell Field - SAT San Antonio

MSOSAT

Missoula Johnson-Bell Field

Sun 11/1

8:39 pm-11:48 am

1 stop14h 09m

San Antonio

Wed 11/4

11:08 am-4:25 pm

2 stops30h 17m

$294

BozemanSan Antonio

BZN Bozeman Gallatin Field - SAT San Antonio

BZNSAT

Bozeman Gallatin Field

Wed 9/16

4:32 pm-11:57 pm

1 stop6h 25m

San Antonio

Sat 9/19

4:39 pm-9:21 pm

1 stop5h 42m

$296

Great FallsSan Antonio

GTF Great Falls - SAT San Antonio

GTFSAT

Great Falls

Mon 11/2

4:59 pm-4:28 pm

1 stop22h 29m

San Antonio

Fri 11/6

5:26 pm-4:19 pm

1 stop23h 53m

$358

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from Montana 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 cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of April, then book flights to San Antonio from Montana during August instead. Flights to San Antonio in August, while not as cheap as those in April, still average around $423.

Can stopping save me money on Montana to San Antonio flights?

You could potentially save up to 9% on your flight if you consider stops on a Montana to San Antonio flight.

Cheap Montana to San Antonio flight deals and tips

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

Fastest flight time

4h 58m

Direct flights

None
The fastest flight from Montana to San Antonio takes 4h 58m
There are no direct flights from Montana to San Antonio. There are no popular flight routes from Montana to San Antonio.
Search flight deals

Frequently asked questions about flying from Montana to San Antonio

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

    Prices for flights from Montana to San Antonio Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana 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.

Best airlines flying from Montana to San Antonio

Compare and see reviews for airlines that fly from Montana to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $228Free CancellationRating
8.0
4,219 reviews
Search Southwest flights
United AirlinesPriceFrom $264Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.8
8,508 reviews
Search Delta flights

Traveling to a place near San Antonio?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montana to San Antonio. momondo saves you time and could save you money on your trip.

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

Yes. All flights to San Antonio from Montana on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Montana to San Antonio.

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

Yes momondo offers price alerts on flights to San Antonio from Montana. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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