Cheap flights from the United States to San Antonio from $28

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to San Antonio departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from the United States to San Antonio

Recent round-trip flight deals from the United States to San Antonio

Enter your travel dates to find the best prices.
Frontier Logo
1:00 pm - 4:17 pm
DEN
-
SAT
2h 17mnonstop
Frontier Logo
5:36 pm - 7:00 pm
SAT
-
DEN
2h 24mnonstop
$83Frontier
Wed, Feb 11 - Tue, Feb 17
Frontier Logo
4:20 pm - 7:37 pm
DEN
-
SAT
2h 17mnonstop
Frontier Logo
8:22 pm - 9:47 pm
SAT
-
DEN
2h 25mnonstop
$87Frontier
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
3:06 pm - 6:22 pm
DEN
-
SAT
2h 16mnonstop
Frontier Logo
6:45 am - 8:08 am
SAT
-
DEN
2h 23mnonstop
$88Frontier
Sun, Mar 1 - Fri, Mar 6
Frontier Logo
9:00 pm - 12:17 am
DEN
-
SAT
2h 17mnonstop
Frontier Logo
6:45 am - 8:09 am
SAT
-
DEN
2h 24mnonstop
$90Frontier
Mon, Apr 6 - Thu, Apr 9
Multiple Airlines Logo
9:16 pm - 9:53 pm
LAX
-
SAT
22h 37m
1 stop
Multiple Airlines Logo
9:39 pm - 8:15 am
SAT
-
LAX
12h 36m
1 stop
$140Multiple Airlines
Thu, Feb 12 - Mon, Feb 16
Spirit Airlines Logo
11:30 am - 11:59 pm
BWI
-
SAT
13h 29m
1 stop
Spirit Airlines Logo
10:26 am - 11:31 pm
SAT
-
BWI
12h 05m
1 stop
$144Spirit Airlines
Wed, Feb 25 - Tue, Mar 3
Spirit Airlines Logo
11:30 am - 11:59 pm
BWI
-
SAT
13h 29m
1 stop
Spirit Airlines Logo
10:26 am - 11:31 pm
SAT
-
BWI
12h 05m
1 stop
$145Spirit Airlines
Tue, Feb 24 - Sat, Feb 28
Multiple Airlines Logo
4:45 pm - 11:59 pm
BWI
-
SAT
8h 14m
1 stop
Multiple Airlines Logo
5:08 pm - 12:31 am
SAT
-
BWI
6h 23m
1 stop
$150Multiple Airlines
Wed, Feb 25 - Mon, Mar 2
United Airlines Logo
8:15 am - 11:19 am
IAD
-
SAT
4h 04mnonstop
United Airlines Logo
7:25 am - 11:34 am
SAT
-
IAD
3h 09mnonstop
$249United Airlines
Fri, Feb 6 - Sun, Feb 8
United Airlines Logo
8:15 am - 11:19 am
IAD
-
SAT
4h 04mnonstop
United Airlines Logo
4:04 pm - 10:18 pm
SAT
-
IAD
5h 14m
1 stop
$259United Airlines
Fri, Feb 6 - Sun, Feb 8

Frontier flights from United States to San Antonio

Our best Frontier deals on United States to San Antonio flight tickets
Frontier
Feb 11
DEN1:00 pmDenver Intl
2h 17m
SAT4:17 pmSan Antonio
Feb 17
SAT5:36 pmSan Antonio
2h 24m
DEN7:00 pmDenver Intl
$83
Frontier
Feb 27
DEN4:20 pmDenver Intl
2h 17m
SAT7:37 pmSan Antonio
Mar 2
SAT8:22 pmSan Antonio
2h 25m
DEN9:47 pmDenver Intl
$87
Frontier
Mar 1
DEN3:06 pmDenver Intl
2h 16m
SAT6:22 pmSan Antonio
Mar 6
SAT6:45 amSan Antonio
2h 23m
DEN8:08 amDenver Intl
$88

American Airlines flights from United States to San Antonio

Our best American Airlines deals on United States to San Antonio flight tickets
American Airlines
Feb 12
DCA5:45 pmWashington, D.C. Reagan-National
3h 56m
SAT8:41 pmSan Antonio
Feb 23
SAT6:00 amSan Antonio
3h 11m
DCA10:11 amWashington, D.C. Reagan-National
$269
American Airlines
Feb 14
DCA4:59 pmWashington, D.C. Reagan-National
3h 56m
SAT7:55 pmSan Antonio
Feb 18
SAT6:00 amSan Antonio
3h 11m
DCA10:11 amWashington, D.C. Reagan-National
$273
American Airlines
Jan 31
DCA2:00 pmWashington, D.C. Reagan-National
4h 00m
SAT5:00 pmSan Antonio
Feb 5
SAT6:41 amSan Antonio
3h 02m
DCA10:43 amWashington, D.C. Reagan-National
$279

momondo Fare Finder

 
Customize your flight search to find flights from United States 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 January 15, 2026.
Use the filters below to find and compare flights from the United States to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Wed 2/11

1:00 pm-4:17 pm

Nonstop2h 17m

San Antonio

Tue 2/17

5:36 pm-7:00 pm

Nonstop2h 24m

$83

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 2/27

4:20 pm-7:37 pm

Nonstop2h 17m

San Antonio

Mon 3/2

8:22 pm-9:47 pm

Nonstop2h 25m

$87

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sun 3/1

3:06 pm-6:22 pm

Nonstop2h 16m

San Antonio

Fri 3/6

6:45 am-8:08 am

Nonstop2h 23m

$88

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Mon 4/6

9:00 pm-12:17 am

Nonstop2h 17m

San Antonio

Thu 4/9

6:45 am-8:09 am

Nonstop2h 24m

$90

Los AngelesSan Antonio

LAX - SAT

LAXSAT

Los Angeles

Thu 2/12

9:16 pm-9:53 pm

1 stop22h 37m

San Antonio

Mon 2/16

9:39 pm-8:15 am

1 stop12h 36m

$140

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Wed 2/25

11:30 am-11:59 pm

1 stop13h 29m

San Antonio

Tue 3/3

10:26 am-11:31 pm

1 stop12h 05m

$144

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Tue 2/24

11:30 am-11:59 pm

1 stop13h 29m

San Antonio

Sat 2/28

10:26 am-11:31 pm

1 stop12h 05m

$145

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Wed 2/25

4:45 pm-11:59 pm

1 stop8h 14m

San Antonio

Mon 3/2

5:08 pm-12:31 am

1 stop6h 23m

$150

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Fri 2/6

8:15 am-11:19 am

Nonstop4h 04m

San Antonio

Sun 2/8

7:25 am-11:34 am

Nonstop3h 09m

$249

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Fri 2/6

8:15 am-11:19 am

Nonstop4h 04m

San Antonio

Sun 2/8

4:04 pm-10:18 pm

1 stop5h 14m

$259

Flights are sorted by cheapest round-trip flights first.

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See travel insights to San Antonio from

How to get the cheapest flight ticket from United States 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 September, then book flights to San Antonio from United States during July instead. Flights to San Antonio in July, while not as cheap as those in September, still average around $329.

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 Thursday when prices can be found for as low as $404. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $509.

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 United States to San Antonio in the afternoon for as low as $329. 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 in the morning, with an average ticket price of $441. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest United States to San Antonio flight route?

Fly from Denver Intl to San Antonio for the best United States - San Antonio flight prices

How far in advance should I book a flight to San Antonio?

You are more likely to see cheaper flights to San Antonio from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $406 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from United States for as low as $295 on momondo.

What cabin class options are available on United States to San Antonio flights?

There are 4 cabin classes available to choose from on United States to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to San Antonio flights?

No. A direct flight is the cheapest option for a flight between United States to San Antonio.

Cheap United States to San Antonio flight deals and tips

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

Best Price Found

$80

Fastest flight time

1h 00m

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from United States in the past 72 hours is $80. The best round-trip flight deal from United States to San Antonio found on momondo in the last 72 hours is $78.
The fastest flight from United States to San Antonio takes 1h 00m
Direct flights go from United States to San Antonio every day.
There is 1 airport in San Antonio. From United States there are direct flights to San Antonio (SAT).
  • When did momondo last update prices for flights from United States to San Antonio Airport?

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

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

  • How old do you have to be to fly from United States 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 United States 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 plane model from United States to San Antonio?

Best airlines flying from United States to San Antonio

Compare and see reviews for airlines that fly from United States to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $60Free CancellationRating
6.3
8,319 reviews
Search Spirit Airlines flights
FrontierPriceFrom $61Free CancellationRating
5.7
3,057 reviews
Search Frontier flights
DeltaPriceFrom $93Free CancellationRating
7.9
8,049 reviews
Search Delta flights
United AirlinesPriceFrom $128Free CancellationRating
7.4
9,164 reviews
Search United Airlines flights
SouthwestPriceFrom $167Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
American AirlinesPriceFrom $170Free CancellationRating
7.2
11,132 reviews
Search American Airlines flights
JetBluePriceFrom $227Free CancellationRating
7.2
2,887 reviews
Search JetBlue 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
Boerne
Schertz
Pleasanton

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to San Antonio. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for United States to San Antonio flights to just show those with flexible booking policies.

How can momondo help me find flights from United States 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 United States.

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

Yes. momondo can track prices for United States to San Antonio flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Sat 2/14
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