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Cheap flights from San Antonio to the United States 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 San Antonio to the United States departing on 1/6. 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 San Antonio to the United States

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:13 am - 11:39 am
SAT
-
DEN
2h 26mnonstop
Frontier Logo
7:00 am - 10:22 am
DEN
-
SAT
2h 22mnonstop
$88Frontier
Sun, Jan 11 - Fri, Jan 16
Frontier Logo
6:45 am - 8:09 am
SAT
-
DEN
2h 24mnonstop
Frontier Logo
6:00 am - 9:18 am
DEN
-
SAT
2h 18mnonstop
$92Frontier
Tue, Jan 6 - Fri, Jan 9
Frontier Logo
3:55 pm - 5:23 pm
SAT
-
DEN
2h 28mnonstop
Frontier Logo
6:00 am - 9:18 am
DEN
-
SAT
2h 18mnonstop
$93Frontier
Tue, Jan 6 - Sun, Jan 11
Frontier Logo
3:55 pm - 5:23 pm
SAT
-
DEN
2h 28mnonstop
Frontier Logo
6:00 am - 9:18 am
DEN
-
SAT
2h 18mnonstop
$94Frontier
Tue, Jan 6 - Sun, Jan 11
Multiple Airlines Logo
5:10 am - 6:07 am
SAT
-
LAS
2h 57mnonstop
Multiple Airlines Logo
6:20 am - 11:00 am
LAS
-
SAT
2h 40mnonstop
$99Multiple Airlines
Wed, Jan 7 - Mon, Jan 12
Spirit Airlines Logo
12:45 pm - 4:23 pm
SAT
-
MCO
2h 38mnonstop
Spirit Airlines Logo
9:43 pm - 11:52 pm
MCO
-
SAT
3h 09mnonstop
$111Spirit Airlines
Wed, Jan 7 - Tue, Jan 13
Spirit Airlines Logo
6:35 am - 8:01 am
SAT
-
LAX
3h 26mnonstop
Spirit Airlines Logo
8:56 am - 1:44 pm
LAX
-
SAT
2h 48mnonstop
$119Spirit Airlines
Mon, Jan 5 - Tue, Jan 6
Southwest Logo
6:15 pm - 11:05 pm
SAT
-
SEA
6h 50m1 stop
Southwest Logo
2:05 pm - 9:55 pm
SEA
-
SAT
5h 50m1 stop
$215Southwest
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
2:15 pm - 9:15 pm
SAT
-
SEA
9h 00m2 stops
United Airlines Logo
12:57 pm - 9:21 pm
SEA
-
SAT
6h 24m1 stop
$232United Airlines
Sat, Jan 10 - Mon, Jan 12
Delta Logo
7:00 am - 12:57 pm
SAT
-
SEA
7h 57m1 stop
Delta Logo
4:55 pm - 12:41 am
SEA
-
SAT
5h 46m1 stop
$237Delta
Fri, Jan 16 - Mon, Jan 19

Spirit Airlines flights from San Antonio to United States

Our best Spirit Airlines deals on San Antonio to United States flight tickets
Spirit Airlines
Jan 7
SAT12:45 pmSan Antonio
2h 38m
MCO4:23 pmOrlando
Jan 13
MCO9:43 pmOrlando
3h 09m
SAT11:52 pmSan Antonio
$111
Find similar
Spirit Airlines
Jan 5
SAT6:35 amSan Antonio
3h 26m
LAX8:01 amLos Angeles
Jan 6
LAX8:56 amLos Angeles
2h 48m
SAT1:44 pmSan Antonio
$119
Find similar
Spirit Airlines
Jan 5
SAT6:35 amSan Antonio
3h 26m
LAX8:01 amLos Angeles
Jan 7
LAX8:56 amLos Angeles
2h 48m
SAT1:44 pmSan Antonio
$120
Find similar

Frontier flights from San Antonio to United States

Our best Frontier deals on San Antonio to United States flight tickets
Frontier
Jan 11
SAT10:13 amSan Antonio
2h 26m
DEN11:39 amDenver Intl
Jan 16
DEN7:00 amDenver Intl
2h 22m
SAT10:22 amSan Antonio
$88
Find similar
Frontier
Jan 6
SAT6:45 amSan Antonio
2h 24m
DEN8:09 amDenver Intl
Jan 9
DEN6:00 amDenver Intl
2h 18m
SAT9:18 amSan Antonio
$92
Find similar
Frontier
Jan 6
SAT3:55 pmSan Antonio
2h 28m
DEN5:23 pmDenver Intl
Jan 11
DEN6:00 amDenver Intl
2h 18m
SAT9:18 amSan Antonio
$93
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to United States 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 December 15, 2025.
Use the filters below to find and compare flights from San Antonio to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Sun 1/11

10:13 am-11:39 am

Nonstop2h 26m

Denver Intl

Fri 1/16

7:00 am-10:22 am

Nonstop2h 22m

$88

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Tue 1/6

6:45 am-8:09 am

Nonstop2h 24m

Denver Intl

Fri 1/9

6:00 am-9:18 am

Nonstop2h 18m

$92

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Tue 1/6

3:55 pm-5:23 pm

Nonstop2h 28m

Denver Intl

Sun 1/11

6:00 am-9:18 am

Nonstop2h 18m

$93

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Tue 1/6

3:55 pm-5:23 pm

Nonstop2h 28m

Denver Intl

Sun 1/11

6:00 am-9:18 am

Nonstop2h 18m

$94

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Wed 1/7

5:10 am-6:07 am

Nonstop2h 57m

Las Vegas Harry Reid Intl

Mon 1/12

6:20 am-11:00 am

Nonstop2h 40m

$99

San AntonioOrlando

SAT - MCO

SATMCO

San Antonio

Wed 1/7

12:45 pm-4:23 pm

Nonstop2h 38m

Orlando

Tue 1/13

9:43 pm-11:52 pm

Nonstop3h 09m

$111

San AntonioLos Angeles

SAT - LAX

SATLAX

San Antonio

Mon 1/5

6:35 am-8:01 am

Nonstop3h 26m

Los Angeles

Tue 1/6

8:56 am-1:44 pm

Nonstop2h 48m

$119

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Thu 1/8

6:15 pm-11:05 pm

1 stop6h 50m

Seattle/Tacoma Intl

Mon 1/12

2:05 pm-9:55 pm

1 stop5h 50m

$215

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Sat 1/10

2:15 pm-9:15 pm

2 stops9h 00m

Seattle/Tacoma Intl

Mon 1/12

12:57 pm-9:21 pm

1 stop6h 24m

$232

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Fri 1/16

7:00 am-12:57 pm

1 stop7h 57m

Seattle/Tacoma Intl

Mon 1/19

4:55 pm-12:41 am

1 stop5h 46m

$237

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 the United States from

How to get the cheapest flight ticket from San Antonio to United States

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 United States?

In general, August is the cheapest month to fly from San Antonio to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $299. If you aren’t able to travel during the month of August, then book flights to United States from San Antonio during September instead. Flights to United States in September, while not as cheap as those in August, still average around $299.

What is the cheapest day to depart on your flight to United States?

According to our data, Thursday is the cheapest day to fly to United States from San Antonio. The lowest ticket price found for a Thursday departure recently was $406. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $671. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the afternoon when flights can be purchased for as low as $294. Try not to purchase tickets at noon because they tend to be around $748. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from San Antonio to Las Vegas Harry Reid Intl for the best San Antonio - United States flight prices

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $379 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from San Antonio for as low as $318 on momondo.

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

There are 4 cabin classes available to choose from on San Antonio to United States 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 San Antonio to United States flights?

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

Cheap San Antonio to United States flight deals and tips

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

Best Price Found

$66

Fastest flight time

1h 00m

Direct flights

Every day

Airports in United States

4,296 airports
The best one-way flight to United States from San Antonio in the past 72 hours is $66. The best round-trip flight deal from San Antonio to United States found on momondo in the last 72 hours is $156.
The fastest flight from San Antonio to United States takes 1h 00m
Direct flights go from San Antonio to United States every day.
There are 4,296 airports in United States. From San Antonio there are direct flights to Dallas/Fort Worth (DFW), Denver Intl (DEN).
Search flight deals

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

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

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

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

    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 San Antonio Airport to United States.

  • What documentation or ID do you need to fly to United States?

    The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Antonio to United States?

Best airlines flying from San Antonio to United States

Compare and see reviews for airlines that fly from San Antonio to United States with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $67Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $70Free CancellationRating
6.3
8,188 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $96Free CancellationRating
7.9
4,249 reviews
Search Southwest flights
American AirlinesPriceFrom $111Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
DeltaPriceFrom $117Free CancellationRating
7.9
8,008 reviews
Search Delta flights
United AirlinesPriceFrom $150Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $527Free CancellationRating
8.0
11,454 reviews
Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to United States from San Antonio 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 United States quick and easy, saving you time and money.

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

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

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

momondo provides multiple filters to help you find the best flight to United States from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to United States, momondo offers a useful price alert feature which will track prices for flights to United States from San Antonio and alert you when they change.

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