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Cheap flights from Seattle to San Antonio from C$ 172

SEA — SAT
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to San Antonio

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to San Antonio

Tue 8/1211:05 a.m. -
2 stops8h 25m
Sat 12/125:40 a.m. -
2 stops14h 50m
Deal found 31/10C$ 364
Fri 4/1212:50 p.m. -
2 stops8h 14m
Mon 7/125:45 p.m. -
1 stop7h 06m
Deal found 2/11C$ 369
Tue 1/1211:59 p.m. -
1 stop6h 30m
Tue 8/123:24 p.m. -
1 stop10h 20m
Deal found 3/11C$ 370
Sat 5/126:45 a.m. -
2 stops8h 40m
Sun 6/125:35 a.m. -
1 stop6h 30m
Deal found 1/11C$ 371
Mon 16/115:05 a.m. -
1 stop5h 41m
Mon 16/116:03 p.m. -
1 stop6h 48m
Deal found 1/11C$ 380
Sun 15/113:13 p.m. -
1 stop6h 50m
Thu 19/117:01 a.m. -
1 stop10h 09m
Deal found 31/10C$ 387
Thu 3/1212:50 p.m. -
2 stops8h 14m
Thu 10/125:45 p.m. -
1 stop7h 06m
Deal found 4/11C$ 390
Thu 3/129:01 a.m. -
2 stops9h 33m
Mon 7/124:57 p.m. -
1 stop6h 24m
Deal found 3/11C$ 391
Thu 26/115:35 a.m. -
1 stop6h 04m
Tue 1/124:59 p.m. -
1 stop7h 03m
Deal found 1/11C$ 394

Find flight deals from Seattle to San Antonio

Round-trip from

C$ 364

One-way from

C$ 172

Popular in

June

Cheapest in

February

Average price

C$ 575
Delta
  • Delta
  • 21/1-24/1
  • 2 total stops
  • 15h 36m total
  • Seattle to San Antonio
Search Deals
Delta
  • Delta
  • 16/12-31/12
  • 1 total stop
  • 6h 44m total
  • Seattle to San Antonio
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2026
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Tue 5/1

12:08 p.m.-11:35 p.m.

1 stop9h 27m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 172

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Thu 24/12

11:36 a.m.-11:00 p.m.

1 stop9h 24m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 172

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Tue 9/2

5:00 a.m.-3:40 p.m.

2 stops8h 40m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 179

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Fri 11/12

9:25 p.m.-8:00 a.m.

2 stops8h 35m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 179

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Fri 18/12

8:40 p.m.-10:10 a.m.

1 stop11h 30m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 179

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Sun 13/12

3:21 p.m.-12:05 a.m.

1 stop6h 44m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 194
Quickest round-trip

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Thu 26/11

5:35 a.m.-1:39 p.m.

1 stop6h 04m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 223

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Sun 20/12

9:50 p.m.-10:05 a.m.

1 stop10h 15m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 242

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Tue 5/1

11:35 a.m.-10:30 p.m.

2 stops8h 55m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 249

SeattleSan Antonio

SEA Seattle/Tacoma Intl - SAT San Antonio

SEASAT

Seattle/Tacoma Intl

Mon 21/12

9:50 p.m.-8:35 a.m.

2 stops8h 45m

San Antonio

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 286

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Seattle to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to San Antonio

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

To ensure you get the cheapest price possible for a flight from Seattle to San Antonio, you should look to book at least 46 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to San Antonio?

Currently, February is the cheapest month in which you can book a flight from Seattle to San Antonio (average of C$ 412). Flying from Seattle to San Antonio in June is currently the most expensive (average of C$ 593). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to SAT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to San Antonio as you normally would.

How much does it cost to fly round-trip from Seattle to San Antonio?

Airfare is below average for this route at the moment.

Seattle to San Antonio flights typically cost between C$ 416 and C$ 841 in January.
The cheapest round-trip price found within the last 5 days was C$ 364 on Delta (21 Jan-24 Jan).

Related info for your journey

  • How popular is this Seattle to San Antonio flight route?

    The Seattle/Tacoma Intl to San Antonio flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to San Antonio?

    There are many flights that can get you from Seattle to San Antonio in 6h 04m. Fly via United Airlines, Delta, or Southwest to get the fastest option. The distance between Seattle and San Antonio is about 2852 km. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Seattle to San Antonio that include hotel bookings?

    Yes. In addition to deals on Seattle to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San Antonio.

  • Can I find deals for business class flights from Seattle to San Antonio?

    Yes. Cheapflights offers flight deals from Seattle to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to San Antonio?

    Currently, February is the cheapest month in which you can book a flight from Seattle to San Antonio (average of C$ 412). Flying from Seattle to San Antonio in June is currently the most expensive (average of C$ 593). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to San Antonio

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Seattle to Austin flights
Seattle to Dallas/Fort Worth flights
Bellingham to Dallas/Fort Worth flights

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