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Cheap flights from Montana to San Antonio from $182

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 9/22. 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
6:20 pm - 12:45 am
GTF
-
SAT
5h 25m
1 stop
Delta Logo
6:05 pm - 10:53 pm
SAT
-
GTF
5h 48m
1 stop
$318Delta
Thu, Nov 19 - Tue, Nov 24
Delta Logo
6:20 pm - 12:45 am
GTF
-
SAT
5h 25m
1 stop
Delta Logo
6:30 am - 5:43 pm
SAT
-
GTF
12h 13m
2 stops
$324Delta
Thu, Nov 19 - Tue, Nov 24
Alaska Airlines Logo
4:08 pm - 6:38 pm
HLN
-
SAT
25h 30m
1 stop
Alaska Airlines Logo
7:37 pm - 3:31 pm
SAT
-
HLN
20h 54m
1 stop
$329Alaska Airlines
Tue, Dec 8 - Thu, Dec 10
United Airlines Logo
2:29 pm - 8:52 pm
BIL
-
SAT
5h 23m
1 stop
United Airlines Logo
4:12 pm - 10:53 pm
SAT
-
BIL
7h 41m
2 stops
$334United Airlines
Sun, Sep 6 - Sat, Sep 12
Alaska Airlines Logo
5:18 pm - 4:13 pm
GTF
-
SAT
21h 55m
1 stop
Alaska Airlines Logo
5:17 pm - 4:39 pm
SAT
-
GTF
24h 22m
1 stop
$368Alaska Airlines
Thu, Aug 27 - Sat, Sep 12
United Airlines Logo
4:20 pm - 11:59 pm
BZN
-
SAT
6h 39m
1 stop
United Airlines Logo
5:40 am - 9:37 am
SAT
-
BZN
4h 57m
1 stop
$390United Airlines
Sat, Jul 25 - Sat, Aug 1
Southwest Logo
6:10 am - 12:25 pm
BZN
-
SAT
5h 15m
1 stop
Southwest Logo
6:20 pm - 10:55 pm
SAT
-
BZN
5h 35m
1 stop
$422Southwest
Fri, Jul 17 - Sat, Jul 25
Multiple Airlines Logo
8:39 pm - 11:48 am
MSO
-
SAT
14h 09m
1 stop
Multiple Airlines Logo
7:48 pm - 8:17 pm
SAT
-
MSO
25h 29m
1 stop
$423Multiple Airlines
Sun, Nov 1 - Sat, Nov 7
Southwest Logo
6:55 am - 2:50 pm
BZN
-
SAT
6h 55m
1 stop
Southwest Logo
6:10 pm - 10:25 pm
SAT
-
BZN
5h 15m
1 stop
$428Southwest
Tue, Sep 8 - Fri, Sep 11
Multiple Airlines Logo
8:39 pm - 11:48 am
MSO
-
SAT
14h 09m
1 stop
Multiple Airlines Logo
11:08 am - 4:25 pm
SAT
-
MSO
30h 17m
2 stops
$437Multiple Airlines
Sun, Nov 1 - Wed, Nov 11

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Alaska Airlines flights from Montana to San Antonio

Our best Alaska Airlines deals on Montana to San Antonio flight tickets
Alaska Airlines
Dec 8
HLN4:08 pmHelena
25h 30m
1 stop
SAT6:38 pmSan Antonio
Dec 10
SAT7:37 pmSan Antonio
20h 54m
1 stop
HLN3:31 pmHelena
$329
Alaska Airlines
Aug 27
GTF5:18 pmGreat Falls
21h 55m
1 stop
SAT4:13 pmSan Antonio
Sep 12
SAT5:17 pmSan Antonio
24h 22m
1 stop
GTF4:39 pmGreat Falls
$368
Alaska Airlines
Nov 17
FCA6:30 amKalispell Glacier Park
8h 55m
1 stop
SAT4:25 pmSan Antonio
Nov 18
SAT5:21 pmSan Antonio
7h 38m
1 stop
FCA11:59 pmKalispell Glacier Park
$389

American Airlines flights from Montana to San Antonio

Our best American Airlines deals on Montana to San Antonio flight tickets
American Airlines
Jun 29
BIL1:33 pmBillings Logan Intl
7h 27m
1 stop
SAT10:00 pmSan Antonio
Jul 1
SAT6:01 amSan Antonio
8h 02m
1 stop
BIL1:03 pmBillings Logan Intl
$856
American Airlines
Jul 4
MSO6:45 amMissoula Johnson-Bell Field
8h 10m
1 stop
SAT3:55 pmSan Antonio
Jul 7
SAT6:01 amSan Antonio
11h 10m
2 stops
MSO4:11 pmMissoula Johnson-Bell Field
$916
American Airlines
Jun 29
BIL12:53 pmBillings Logan Intl
10h 06m
2 stops
SAT11:59 pmSan Antonio
Jul 1
SAT6:01 amSan Antonio
8h 02m
1 stop
BIL1:03 pmBillings Logan Intl
$945

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 June 27, 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

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 11/19

6:20 pm-12:45 am

1 stop5h 25m

San Antonio

Tue 11/24

6:05 pm-10:53 pm

1 stop5h 48m

$318

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 11/19

6:20 pm-12:45 am

1 stop5h 25m

San Antonio

Tue 11/24

6:30 am-5:43 pm

2 stops12h 13m

$324

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 12/8

4:08 pm-6:38 pm

1 stop25h 30m

San Antonio

Thu 12/10

7:37 pm-3:31 pm

1 stop20h 54m

$329

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Sun 9/6

2:29 pm-8:52 pm

1 stop5h 23m

San Antonio

Sat 9/12

4:12 pm-10:53 pm

2 stops7h 41m

$334

Great FallsSan Antonio

GTF - SAT

GTFSAT

Great Falls

Thu 8/27

5:18 pm-4:13 pm

1 stop21h 55m

San Antonio

Sat 9/12

5:17 pm-4:39 pm

1 stop24h 22m

$368

BozemanSan Antonio

BZN - SAT

BZNSAT

Bozeman Gallatin Field

Sat 7/25

4:20 pm-11:59 pm

1 stop6h 39m

San Antonio

Sat 8/1

5:40 am-9:37 am

1 stop4h 57m

$390
Quickest round-trip

BozemanSan Antonio

BZN - SAT

BZNSAT

Bozeman Gallatin Field

Fri 7/17

6:10 am-12:25 pm

1 stop5h 15m

San Antonio

Sat 7/25

6:20 pm-10:55 pm

1 stop5h 35m

$422

MissoulaSan Antonio

MSO - SAT

MSOSAT

Missoula Johnson-Bell Field

Sun 11/1

8:39 pm-11:48 am

1 stop14h 09m

San Antonio

Sat 11/7

7:48 pm-8:17 pm

1 stop25h 29m

$423

BozemanSan Antonio

BZN - SAT

BZNSAT

Bozeman Gallatin Field

Tue 9/8

6:55 am-2:50 pm

1 stop6h 55m

San Antonio

Fri 9/11

6:10 pm-10:25 pm

1 stop5h 15m

$428

MissoulaSan Antonio

MSO - SAT

MSOSAT

Missoula Johnson-Bell Field

Sun 11/1

8:39 pm-11:48 am

1 stop14h 09m

San Antonio

Wed 11/11

11:08 am-4:25 pm

2 stops30h 17m

$437

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 March instead. Flights to San Antonio in March, while not as cheap as those in April, still average around $192.

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 52m

Direct flights

None
The fastest flight from Montana to San Antonio takes 4h 52m
There are no direct flights from Montana to San Antonio. There are no popular flight routes from Montana to San Antonio.
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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
7.9
4,246 reviews
Search Southwest flights
DeltaPriceFrom $238Free CancellationRating
7.8
8,451 reviews
Search Delta flights
United AirlinesPriceFrom $264Free CancellationRating
7.4
9,896 reviews
Search United Airlines flights
American AirlinesPriceFrom $290Free CancellationRating
7.1
11,779 reviews
Search American 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 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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