Plan to arrive at SEA at least two hours before your flight due to potentially long security lines.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $197 (American Airlines) |
One-way from | $68 (Kiwi.com) |
Popular in | November |
Cheapest in | August |
Average price | $292 |
Good round-trip deal | $217 or less |
Good one-way deal | $368 or less |
Fly from
Fly to
Route
Depart
Return
Price
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
vie. 3/6
4:40 pm-12:41 am
1 stop6h 01m
San Antonio
lun. 3/9
4:10 pm-11:21 pm
1 stop9h 11m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
jue. 3/5
8:30 am-5:04 pm
1 stop6h 34m
San Antonio
dom. 3/15
4:10 pm-11:23 pm
1 stop9h 13m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
vie. 2/6
2:02 pm-11:43 pm
1 stop7h 41m
San Antonio
vie. 2/13
4:42 pm-11:25 pm
1 stop8h 43m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
jue. 4/9
9:55 am-10:42 pm
1 stop10h 47m
San Antonio
mar. 4/14
7:35 am-12:40 pm
1 stop7h 05m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
lun. 3/16
1:30 pm-12:16 am
1 stop8h 46m
San Antonio
jue. 3/19
7:35 am-2:41 pm
1 stop9h 06m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
mié. 3/18
1:30 pm-12:16 am
1 stop8h 46m
San Antonio
vie. 3/27
5:55 pm-12:03 am
1 stop8h 08m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
jue. 3/19
1:30 pm-12:16 am
1 stop8h 46m
San Antonio
vie. 3/27
4:10 pm-11:23 pm
1 stop9h 13m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
jue. 4/16
11:59 pm-11:52 am
1 stop9h 53m
San Antonio
dom. 4/26
5:58 pm-11:59 pm
1 stop8h 01m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
dom. 2/1
2:02 pm-11:43 pm
1 stop7h 41m
San Antonio
jue. 2/5
4:40 pm-11:22 pm
1 stop8h 42m
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
sáb. 3/7
11:09 am-5:10 pm
Nonstop4h 01m
San Antonio
lun. 3/9
6:06 pm-8:43 pm
Nonstop4h 37m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from Seattle to San Antonio (average of $123). Flying from Seattle to San Antonio in June is currently the most expensive (average of $222). 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.
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.
Denver (DEN) – chosen by Cheapflights users on 40% of 1-stop itineraries from Seattle to San Antonio on Cheapflights.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $223.
Flights via Dallas (DFW) have the shortest average one-way travel time for 1-stop routes: 6h 16m.
Flights via Dallas (DFW) offer the fastest connection on this route, with an average layover time of 1h 14m.
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Anonymous,Dec 2025
SEA - MSY
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$163 | Average$220 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$164 | Average$268 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$171 | Average$265 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$330 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$194 | Average$320 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$197 | Average$377 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$201 | Average$304 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$217 | Average$391 | FlexibilityNo cancel fee | On-time75% |