What airlines fly to San Antonio?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to San Antonio from Montana according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 5 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Montana to San Antonio?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Montana to San Antonio

How many flights depart from Montana to San Antonio on average per week?

The number of flights available between Montana and San Antonio is 7 per week as of September 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

How long does it take to fly to San Antonio?

Flight times vary depending on what airport in Montana you fly out of and what airport in San Antonio you fly into. For example, flying from Kalispell to Austin takes 5h 07m on average. On the other hand, flying from Great Falls to Austin takes 5h 14m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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?

The number of operators available for flights from Montana to San Antonio Airport is 4 as of September 2025.

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.

$124 Cheap Flights from Montana to San Antonio in 2025/26

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Find the cheapest flights from Montana to San Antonio

Round-trip

One-way

Last minute

Cheap round-trip flights

8:44 pm - 11:40 pmMSO-SAT

25h 56m1 stop

12:17 pm - 9:35 pmSAT-MSO

10h 18m1 stop

$269Multiple Airlines

Find Deal

Mon, Nov 3 - Fri, Nov 7

10:26 pm - 1:19 pmMSO-SAT

13h 53m1 stop

2:04 pm - 7:54 pmSAT-MSO

6h 50m1 stop

$277Multiple Airlines

Find Deal

Fri, Oct 17 - Mon, Oct 27

12:50 pm - 10:55 pmBZN-SAT

9h 05m1 stop

1:05 pm - 6:58 pmSAT-BZN

6h 53m1 stop

$304United Airlines

Find Deal

Wed, Oct 15 - Sat, Oct 18

12:50 pm - 10:55 pmBZN-SAT

9h 05m1 stop

5:30 am - 1:22 pmSAT-BZN

8h 52m2 stops

$309United Airlines

Find Deal

Wed, Oct 15 - Sat, Oct 18

2:00 pm - 11:33 pmBZN-SAT

8h 33m1 stop

6:05 pm - 10:58 pmSAT-BZN

5h 53m1 stop

$311Delta

Find Deal

Sat, Jan 24 - Thu, Jan 29

7:00 am - 5:50 pmBZN-SAT

9h 50m2 stops

10:20 am - 2:32 pmSAT-BZN

5h 12m1 stop

$316American Airlines

Find Deal

Sat, Jan 24 - Thu, Jan 29

2:00 pm - 10:32 pmBZN-SAT

7h 32m1 stop

6:30 am - 12:37 pmSAT-BZN

7h 07m1 stop

$341Delta

Find Deal

Tue, Mar 10 - Wed, Mar 11

4:22 pm - 11:58 pmMSO-SAT

6h 36m1 stop

7:00 am - 3:32 pmSAT-MSO

9h 32m1 stop

$364Alaska Airlines

Find Deal

Thu, Dec 4 - Mon, Dec 8

2:00 pm - 10:15 pmBIL-SAT

7h 15m1 stop

7:00 am - 1:30 pmSAT-BIL

7h 30m1 stop

$371American Airlines

Find Deal

Wed, Nov 19 - Mon, Nov 24

6:35 pm - 6:56 pmFCA-SAT

23h 21m1 stop

6:40 am - 12:22 pmSAT-FCA

6h 42m1 stop

$382Alaska Airlines

Find Deal

Thu, Oct 9 - Tue, Oct 21

Delta flights from Montana to San Antonio

Our best Delta deals on Montana to San Antonio flight tickets

Delta

Jan 24

BZN2:00 pmBozeman Gallatin Field

8h 33m

1 stop

SAT11:33 pmSan Antonio

Jan 29

SAT6:05 pmSan Antonio

5h 53m

1 stop

BZN10:58 pmBozeman Gallatin Field

$311

Find similar

Delta

Mar 10

BZN2:00 pmBozeman Gallatin Field

7h 32m

1 stop

SAT10:32 pmSan Antonio

Mar 11

SAT6:30 amSan Antonio

7h 07m

1 stop

BZN12:37 pmBozeman Gallatin Field

$341

Find similar

Delta

Dec 12

MSO5:01 amMissoula Johnson-Bell Field

7h 51m

1 stop

SAT1:52 pmSan Antonio

Dec 15

SAT6:05 pmSan Antonio

7h 30m

1 stop

MSO12:35 amMissoula Johnson-Bell Field

$371

Find similar

American Airlines flights from Montana to San Antonio

Our best American Airlines deals on Montana to San Antonio flight tickets

American Airlines

Jan 24

BZN7:00 amBozeman Gallatin Field

9h 50m

2 stops

SAT5:50 pmSan Antonio

Jan 29

SAT10:20 amSan Antonio

5h 12m

1 stop

BZN2:32 pmBozeman Gallatin Field

$316

Find similar

American Airlines

Nov 19

BIL2:00 pmBillings Logan Intl

7h 15m

1 stop

SAT10:15 pmSan Antonio

Nov 24

SAT7:00 amSan Antonio

7h 30m

1 stop

BIL1:30 pmBillings Logan Intl

$371

Find similar

American Airlines

Oct 3

BZN4:19 pmBozeman Gallatin Field

5h 41m

1 stop

SAT11:00 pmSan Antonio

Oct 7

SAT5:00 amSan Antonio

9h 08m

2 stops

BZN1:08 pmBozeman Gallatin Field

$376

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MissoulaSan Antonio

MSO - SAT

MSOSAT

Missoula Johnson-Bell Field

Mon 11/3

8:44 pm-11:40 pm

1 stop25h 56m

San Antonio

Fri 11/7

12:17 pm-9:35 pm

1 stop10h 18m

$269

MissoulaSan Antonio

MSO - SAT

MSOSAT

Missoula Johnson-Bell Field

Fri 10/17

10:26 pm-1:19 pm

1 stop13h 53m

San Antonio

Mon 10/27

2:04 pm-7:54 pm

1 stop6h 50m

$277

BozemanSan Antonio

BZN - SAT

BZNSAT

Bozeman Gallatin Field

Wed 10/15

12:50 pm-10:55 pm

1 stop9h 05m

San Antonio

Sat 10/18

1:05 pm-6:58 pm

1 stop6h 53m

$304

BozemanSan Antonio

BZN - SAT

BZNSAT

Bozeman Gallatin Field

Wed 10/15

12:50 pm-10:55 pm

1 stop9h 05m

San Antonio

Sat 10/18

5:30 am-1:22 pm

2 stops8h 52m

$309

BozemanSan Antonio

BZN - SAT

BZNSAT

Bozeman Gallatin Field

Sat 1/24

2:00 pm-11:33 pm

1 stop8h 33m

San Antonio

Thu 1/29

6:05 pm-10:58 pm

1 stop5h 53m

$311

BozemanSan Antonio

BZN - SAT

BZNSAT

Bozeman Gallatin Field

Sat 1/24

7:00 am-5:50 pm

2 stops9h 50m

San Antonio

Thu 1/29

10:20 am-2:32 pm

1 stop5h 12m

$316

BozemanSan Antonio

BZN - SAT

BZNSAT

Bozeman Gallatin Field

Tue 3/10

2:00 pm-10:32 pm

1 stop7h 32m

San Antonio

Wed 3/11

6:30 am-12:37 pm

1 stop7h 07m

$341

MissoulaSan Antonio

MSO - SAT

MSOSAT

Missoula Johnson-Bell Field

Thu 12/4

4:22 pm-11:58 pm

1 stop6h 36m

San Antonio

Mon 12/8

7:00 am-3:32 pm

1 stop9h 32m

$364

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Wed 11/19

2:00 pm-10:15 pm

1 stop7h 15m

San Antonio

Mon 11/24

7:00 am-1:30 pm

1 stop7h 30m

$371

KalispellSan Antonio

FCA - SAT

FCASAT

Kalispell Glacier Park

Thu 10/9

6:35 pm-6:56 pm

1 stop23h 21m

San Antonio

Tue 10/21

6:40 am-12:22 pm

1 stop6h 42m

$382

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Wednesday when prices can be found for as low as $418. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $562.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the afternoon. momondo users have found flights departing from Montana to San Antonio in the afternoon for as low as $403. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $519. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights	None

There are no direct flights from Montana to San Antonio. There are no popular flight routes from Montana to San Antonio.

Search flight deals

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?
The number of operators available for flights from Montana to San Antonio Airport is 4 as of September 2025.
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
Delta	PriceFrom $199	Free Cancellation	Rating 7.9 7,966 reviews	Search Delta flights
Southwest	PriceFrom $247	Free Cancellation	Rating 8.0 4,245 reviews	Search Southwest flights
American Airlines	PriceFrom $290	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $319	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights

New Braunfels

Kerrville

Boerne

Schertz

Pleasanton

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

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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.