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Cheap flights from Seattle to San Antonio from R1 628

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to San Antonio

Cheap return flights

Enter your travel dates to find the best prices.
Southwest Logo
5:30 - 16:15SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 45m2 stops Chicago Midway Kansas City
Southwest Logo
5:25 - 10:30SAT  San Antonio-SEA Seattle/Tacoma Intl
7h 05m1 stop Dallas Love Field
R4 462Southwest
Fri, Nov 13 - Sun, Nov 15
Delta Logo
14:05 - 0:36SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 31m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:43 - 12:40SAT  San Antonio-SEA Seattle/Tacoma Intl
6h 57m1 stop Salt Lake City
R4 478Delta
Sun, Dec 6 - Thu, Dec 10
Delta Logo
22:45 - 9:54SEA  Seattle/Tacoma Intl-SAT San Antonio
9h 09m1 stop Atlanta Hartsfield-Jackson
Delta Logo
17:05 - 22:09SAT  San Antonio-SEA Seattle/Tacoma Intl
7h 04m1 stop Los Angeles Los Angeles
R4 511Delta
Wed, Nov 25 - Tue, Dec 1
Southwest Logo
5:35 - 16:05SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 30m2 stops Phoenix Sky Harbor Intl Dallas Love Field
Southwest Logo
18:00 - 22:25SAT  San Antonio-SEA Seattle/Tacoma Intl
6h 25m1 stop Las Vegas Harry Reid Intl
R4 527Southwest
Wed, Oct 14 - Sat, Oct 17
Southwest Logo
15:10 - 23:05SEA  Seattle/Tacoma Intl-SAT San Antonio
5h 55m1 stop Dallas Love Field
Southwest Logo
16:40 - 0:40SAT  San Antonio-SEA Seattle/Tacoma Intl
10h 00m2 stops Nashville Intl Chicago Midway
R4 560Southwest
Fri, Oct 16 - Mon, Oct 19
Southwest Logo
15:10 - 23:05SEA  Seattle/Tacoma Intl-SAT San Antonio
5h 55m1 stop Dallas Love Field
Southwest Logo
16:40 - 0:40SAT  San Antonio-SEA Seattle/Tacoma Intl
10h 00m2 stops Nashville Intl Chicago Midway
R4 576Southwest
Fri, Oct 16 - Mon, Oct 19
Southwest Logo
11:10 - 21:30SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 20m1 stop Denver Intl
Southwest Logo
18:30 - 23:55SAT  San Antonio-SEA Seattle/Tacoma Intl
7h 25m2 stops El Paso Phoenix Sky Harbor Intl
R4 592Southwest
Tue, Sep 29 - Tue, Oct 6
Southwest Logo
5:30 - 16:15SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 45m2 stops Chicago Midway Kansas City
Southwest Logo
13:35 - 20:55SAT  San Antonio-SEA Seattle/Tacoma Intl
9h 20m2 stops Las Vegas Harry Reid Intl San Diego
R4 641Southwest
Thu, Nov 12 - Mon, Nov 16
Southwest Logo
5:30 - 16:15SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 45m2 stops Chicago Midway Kansas City
Southwest Logo
6:10 - 13:00SAT  San Antonio-SEA Seattle/Tacoma Intl
8h 50m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl
R4 674Southwest
Mon, Nov 2 - Tue, Nov 10
Southwest Logo
21:25 - 11:20SEA  Seattle/Tacoma Intl-SAT San Antonio
11h 55m1 stop Las Vegas Harry Reid Intl
Southwest Logo
18:05 - 0:10SAT  San Antonio-SEA Seattle/Tacoma Intl
8h 05m2 stops Phoenix Sky Harbor Intl Sacramento Intl
R4 690Southwest
Mon, Nov 9 - Fri, Nov 13

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Southwest flights from Seattle to San Antonio

Our best Southwest deals on Seattle to San Antonio flight tickets
Southwest
Nov 13
SEA5:30Seattle/Tacoma Intl
8h 45m
2 stops
SAT16:15San Antonio
Nov 15
SAT5:25San Antonio
7h 05m
1 stop
SEA10:30Seattle/Tacoma Intl
R4 462
Southwest
Sept 29
SEA23:00Seattle/Tacoma Intl
9h 20m
1 stop
SAT10:20San Antonio
Oct 6
SAT6:40San Antonio
6h 45m
1 stop
SEA11:25Seattle/Tacoma Intl
R4 511
Southwest
Oct 14
SEA5:35Seattle/Tacoma Intl
8h 30m
2 stops
SAT16:05San Antonio
Oct 17
SAT18:00San Antonio
6h 25m
1 stop
SEA22:25Seattle/Tacoma Intl
R4 527

United Airlines flights from Seattle to San Antonio

Our best United Airlines deals on Seattle to San Antonio flight tickets
United Airlines
Nov 15
SEA23:59Seattle/Tacoma Intl
6h 30m
1 stop
SAT8:29San Antonio
Nov 22
SAT13:52San Antonio
9h 27m
1 stop
SEA21:19Seattle/Tacoma Intl
R4 836
United Airlines
Oct 14
SEA13:19Seattle/Tacoma Intl
6h 40m
1 stop
SAT21:59San Antonio
Oct 17
SAT13:12San Antonio
12h 15m
2 stops
SEA23:27Seattle/Tacoma Intl
R4 967
United Airlines
Oct 1
SEA13:19Seattle/Tacoma Intl
6h 40m
1 stop
SAT21:59San Antonio
Oct 5
SAT16:50San Antonio
8h 09m
1 stop
SEA22:59Seattle/Tacoma Intl
R4 983

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to San Antonio that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Fri 13/11

5:30-16:15

2 stops8h 45m

San Antonio

Sun 15/11

5:25-10:30

1 stop7h 05m

R4 462

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Sun 6/12

14:05-0:36

1 stop8h 31m

San Antonio

Thu 10/12

7:43-12:40

1 stop6h 57m

R4 478

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Wed 25/11

22:45-9:54

1 stop9h 09m

San Antonio

Tue 1/12

17:05-22:09

1 stop7h 04m

R4 511
Fastest return journey

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Wed 14/10

5:35-16:05

2 stops8h 30m

San Antonio

Sat 17/10

18:00-22:25

1 stop6h 25m

R4 527

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Fri 16/10

15:10-23:05

1 stop5h 55m

San Antonio

Mon 19/10

16:40-0:40

2 stops10h 00m

R4 560

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Fri 16/10

15:10-23:05

1 stop5h 55m

San Antonio

Mon 19/10

16:40-0:40

2 stops10h 00m

R4 576

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Tue 29/9

11:10-21:30

1 stop8h 20m

San Antonio

Tue 6/10

18:30-23:55

2 stops7h 25m

R4 592

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Thu 12/11

5:30-16:15

2 stops8h 45m

San Antonio

Mon 16/11

13:35-20:55

2 stops9h 20m

R4 641

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Mon 2/11

5:30-16:15

2 stops8h 45m

San Antonio

Tue 10/11

6:10-13:00

2 stops8h 50m

R4 674

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Mon 9/11

21:25-11:20

1 stop11h 55m

San Antonio

Fri 13/11

18:05-0:10

2 stops8h 05m

R4 690

Flights are sorted by cheapest return 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 Seattle 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 typical price of a round-trip flight between Seattle and San Antonio?

Prices are currently typical for flights on this route.

Typical prices usually range from R4 332 to R7 377.
The lowest price recently found on this route was R4 462.

What is the cheapest month to fly to San Antonio?

The month of February is, on average, the cheapest month to fly to San Antonio from Seattle, with most prices found around R4 722. If you’re not able to fly to San Antonio in February, then January is your next best option. Flight prices from Seattle to San Antonio during January average around R4 771.

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

You are more likely to see cheaper flights to San Antonio from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around R5 851 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Seattle for as low as R4 283 on momondo.

How have Seattle to San Antonio flight prices changed over time?

As of September 2026, prices for Seattle to San Antonio flights are approximately 10% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to San Antonio (SEA to SAT) flight deals and tips

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

Best price found

R1 628

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Seattle in the past 72 hours is R1 628. The best return flight deal from Seattle to San Antonio found on momondo in the last 72 hours is R4 462.
Direct flights go from Seattle to San Antonio every day.
There is 1 airport in San Antonio. From Seattle there are direct flights to San Antonio (SAT).
Search flight deals

Frequently asked questions about flying from Seattle to San Antonio

  • How far is Seattle/Tacoma Intl to San Antonio by plane?

    There are 2872,8 km between Seattle/Tacoma Intl and San Antonio.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Antonio Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to San Antonio Airport were last updated today.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Why use momondo?

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

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

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

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

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

momondo helps you find the best flight between Seattle and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Seattle to San Antonio flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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