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Cheap flights from Seattle to San Antonio from R2 133

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
6:10 - 17:00SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 50m2 stops Denver Intl Dallas Love Field
Southwest Logo
6:05 - 13:00SAT  San Antonio-SEA Seattle/Tacoma Intl
8h 55m1 stop San Diego
R4 432Southwest
Wed, Dec 2 - Sun, Dec 6
Delta Logo
6:00 - 16:03SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 03m1 stop Detroit Metropolitan Wayne County
Delta Logo
18:28 - 23:53SAT  San Antonio-SEA Seattle/Tacoma Intl
7h 25m1 stop Minneapolis St Paul
R4 482Delta
Thu, Dec 10 - Thu, Dec 17
Southwest Logo
7:00 - 19:20SEA  Seattle/Tacoma Intl-SAT San Antonio
10h 20m2 stops San Diego Las Vegas Harry Reid Intl
Southwest Logo
5:35 - 13:00SAT  San Antonio-SEA Seattle/Tacoma Intl
9h 25m2 stops Phoenix Sky Harbor Intl San Diego
R4 515Southwest
Wed, Dec 2 - Sun, Dec 6
Delta Logo
15:21 - 0:05SEA  Seattle/Tacoma Intl-SAT San Antonio
6h 44m1 stop Los Angeles
Delta Logo
11:47 - 21:54SAT  San Antonio-SEA Seattle/Tacoma Intl
12h 07m1 stop Detroit Metropolitan Wayne County
R4 549Delta
Wed, Dec 16 - Tue, Dec 22
Southwest Logo
21:25 - 10:05SEA  Seattle/Tacoma Intl-SAT San Antonio
10h 40m1 stop Las Vegas Harry Reid Intl
Southwest Logo
13:05 - 17:30SAT  San Antonio-SEA Seattle/Tacoma Intl
6h 25m1 stop Phoenix Sky Harbor Intl
R4 582Southwest
Mon, Nov 23 - Thu, Nov 26
Delta Logo
14:30 - 23:18SEA  Seattle/Tacoma Intl-SAT San Antonio
6h 48m1 stop Los Angeles
Delta Logo
12:25 - 18:30SAT  San Antonio-SEA Seattle/Tacoma Intl
8h 05m1 stop Salt Lake City
R4 615Delta
Wed, Mar 17 - Mon, Mar 22
Delta Logo
22:40 - 9:48SEA  Seattle/Tacoma Intl-SAT San Antonio
9h 08m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:16 - 12:41SAT  San Antonio-SEA Seattle/Tacoma Intl
9h 25m1 stop Atlanta Hartsfield-Jackson
R4 649Delta
Sat, Dec 5 - Sat, Dec 12
Southwest Logo
21:25 - 10:05SEA  Seattle/Tacoma Intl-SAT San Antonio
10h 40m1 stop Las Vegas Harry Reid Intl
Southwest Logo
9:15 - 17:30SAT  San Antonio-SEA Seattle/Tacoma Intl
10h 15m2 stops Dallas Love Field Phoenix Sky Harbor Intl
R4 665Southwest
Mon, Nov 23 - Thu, Nov 26
Delta Logo
23:47 - 11:55SEA  Seattle/Tacoma Intl-SAT San Antonio
10h 08m1 stop Minneapolis St Paul
Delta Logo
17:00 - 22:04SAT  San Antonio-SEA Seattle/Tacoma Intl
7h 04m1 stop Los Angeles
R4 682Delta
Tue, Nov 17 - Fri, Nov 20
Southwest Logo
11:25 - 22:05SEA  Seattle/Tacoma Intl-SAT San Antonio
8h 40m2 stops Sacramento Intl Las Vegas Harry Reid Intl
Southwest Logo
6:10 - 10:50SAT  San Antonio-SEA Seattle/Tacoma Intl
6h 40m1 stop Denver Intl
R4 699Southwest
Tue, Jan 12 - Mon, Jan 18

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United Airlines flights from Seattle to San Antonio

Our best United Airlines deals on Seattle to San Antonio flight tickets
United Airlines
Mar 18
SEA14:00Seattle/Tacoma Intl
6h 52m
1 stop
SAT22:52San Antonio
Mar 21
SAT5:20San Antonio
6h 46m
1 stop
SEA10:06Seattle/Tacoma Intl
R4 899
United Airlines
Dec 7
SEA14:30Seattle/Tacoma Intl
6h 34m
1 stop
SAT23:04San Antonio
Dec 12
SAT8:45San Antonio
9h 38m
2 stops
SEA16:23Seattle/Tacoma Intl
R4 932
United Airlines
Mar 18
SEA14:00Seattle/Tacoma Intl
6h 52m
1 stop
SAT22:52San Antonio
Mar 22
SAT5:20San Antonio
6h 46m
1 stop
SEA10:06Seattle/Tacoma Intl
R5 082

Southwest flights from Seattle to San Antonio

Our best Southwest deals on Seattle to San Antonio flight tickets
Southwest
Dec 2
SEA6:10Seattle/Tacoma Intl
8h 50m
2 stops
SAT17:00San Antonio
Dec 6
SAT6:05San Antonio
8h 55m
1 stop
SEA13:00Seattle/Tacoma Intl
R4 432
Southwest
Dec 2
SEA7:00Seattle/Tacoma Intl
10h 20m
2 stops
SAT19:20San Antonio
Dec 6
SAT5:35San Antonio
9h 25m
2 stops
SEA13:00Seattle/Tacoma Intl
R4 515
Southwest
Nov 23
SEA21:25Seattle/Tacoma Intl
10h 40m
1 stop
SAT10:05San Antonio
Nov 26
SAT13:05San Antonio
6h 25m
1 stop
SEA17:30Seattle/Tacoma Intl
R4 582

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

Wed 2/12

6:10-17:00

2 stops8h 50m

San Antonio

Sun 6/12

6:05-13:00

1 stop8h 55m

R4 432

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Thu 10/12

6:00-16:03

1 stop8h 03m

San Antonio

Thu 17/12

18:28-23:53

1 stop7h 25m

R4 482

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Wed 2/12

7:00-19:20

2 stops10h 20m

San Antonio

Sun 6/12

5:35-13:00

2 stops9h 25m

R4 515

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Wed 16/12

15:21-0:05

1 stop6h 44m

San Antonio

Tue 22/12

11:47-21:54

1 stop12h 07m

R4 549

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Mon 23/11

21:25-10:05

1 stop10h 40m

San Antonio

Thu 26/11

13:05-17:30

1 stop6h 25m

R4 582
Fastest return journey

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Wed 17/3

14:30-23:18

1 stop6h 48m

San Antonio

Mon 22/3

12:25-18:30

1 stop8h 05m

R4 615

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Sat 5/12

22:40-9:48

1 stop9h 08m

San Antonio

Sat 12/12

5:16-12:41

1 stop9h 25m

R4 649

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Mon 23/11

21:25-10:05

1 stop10h 40m

San Antonio

Thu 26/11

9:15-17:30

2 stops10h 15m

R4 665

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Tue 17/11

23:47-11:55

1 stop10h 08m

San Antonio

Fri 20/11

17:00-22:04

1 stop7h 04m

R4 682

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Tue 12/1

11:25-22:05

2 stops8h 40m

San Antonio

Mon 18/1

6:10-10:50

1 stop6h 40m

R4 699

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 low for flights on this route.

Typical prices usually range from R4 965 to R10 030.
The lowest price recently found on this route was R4 432.

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 915. 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 932.

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 R6 315 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 565 on momondo.

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

As of October 2026, prices for Seattle to San Antonio flights are approximately 35% 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

R2 133

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 R2 133. The best return flight deal from Seattle to San Antonio found on momondo in the last 72 hours is R4 432.
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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