Cheap Flights from Seattle, WA to San Antonio, TX from $73

Return flight: San Antonio – Seattle

On Cheapflightsplus.com you will find 2 direct and 267 connecting flights from Seattle to San Antonio. You can compare airfare deals from 7 airlines and multiple travel sites from $73, book and save on cheap plane tickets and last minute offers. Also check out SEA-SAT flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to San Antonio Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $73 (one-way), $125 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Seattle to San Antonio. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
12:29 — 18:25
12:29 — 18:25 AS494 Alaska Airlines
Seattle — San Antonio
3h 56m
Find flight
from$209
23:45 — 05:30
+1 day
23:45 — 05:30 AS446 Alaska Airlines
Seattle — San Antonio
3h 45m
Find flight
from$200
05:00 — 13:07
05:00 — 08:47 UA757 United Airlines
Seattle — Denver
1h 8m stop
09:55 — 13:07 UA1131 United Airlines
Denver — San Antonio
6h 7m
including layover
Find flight
from$180
05:36 — 16:38
05:36 — 07:50 UA1954 United Airlines
Seattle — San Francisco
3h 20m stop
11:10 — 16:38 UA1806 United Airlines
San Francisco — San Antonio
9h 2m
including layover
Find flight
from$180
06:00 — 21:26
06:00 — 08:46 NK801 Spirit Airlines
Seattle — Los Angeles
7h 48m stop
16:34 — 21:26 NK497 Spirit Airlines
Los Angeles — San Antonio
13h 26m
including layover
Find flight
from$120
07:00 — 17:44
07:00 — 13:23 UA1788 United Airlines
Seattle — Houston
3h 7m stop
16:30 — 17:44 UA6135 United Airlines
Houston — San Antonio
8h 44m
including layover
Find flight
from$182
07:05 — 15:26
07:05 — 13:24 UA1788 United Airlines
Seattle — Houston
56m stop
14:20 — 15:26 UA1524 United Airlines
Houston — San Antonio
6h 21m
including layover
Find flight
from$181
09:00 — 16:40
08:30 — 12:14 UA1829 United Airlines
Seattle — Denver
43m stop
13:41 — 16:54 UA1022 United Airlines
Denver — San Antonio
5h 40m
including layover
Find flight
from$180
09:57 — 19:30
14:55 — 17:32 F94830 Frontier Airlines
Seattle — Las Vegas
2h 13m stop
13:00 — 17:47 F93418 Frontier Airlines
Las Vegas — San Antonio
7h 33m
including layover
Find flight
from$92
11:36 — 17:47
+1 day
11:36 — 14:11 F94204 Frontier Airlines
Seattle — Las Vegas
22h 49m stop
13:00 — 17:47 F93418 Frontier Airlines
Las Vegas — San Antonio
28h 11m
including layover
Find flight
from$161
12:32 — 23:49
12:32 — 14:51 UA1399 United Airlines
Seattle — San Francisco
3h 34m stop
18:25 — 23:49 UA214 United Airlines
San Francisco — San Antonio
9h 17m
including layover
Find flight
from$181
12:55 — 23:59
12:55 — 15:12 UA737 United Airlines
Seattle — San Francisco
3h 13m stop
18:25 — 23:59 UA4669 United Airlines
San Francisco — San Antonio
9h 4m
including layover
Find flight
from$180
13:55 — 23:59
13:55 — 16:12 UA1152 United Airlines
Seattle — San Francisco
2h 13m stop
18:25 — 23:59 UA4669 United Airlines
San Francisco — San Antonio
8h 4m
including layover
Find flight
from$180
13:59 — 23:14
13:59 — 20:20 UA1334 United Airlines
Seattle — Houston
1h 45m stop
22:05 — 23:14 UA6158 United Airlines
Houston — San Antonio
7h 15m
including layover
Find flight
from$182
14:00 — 23:13
14:00 — 20:23 UA690 United Airlines
Seattle — Houston
1h 42m stop
22:05 — 23:13 UA5476 United Airlines
Houston — San Antonio
7h 13m
including layover
Find flight
from$180
14:00 — 23:10
14:00 — 20:23 UA690 United Airlines
Seattle — Houston
1h 42m stop
22:05 — 23:10 UA1645 United Airlines
Houston — San Antonio
7h 10m
including layover
Find flight
from$181
15:15 — 12:02
+1 day
09:19 — 13:04 F93406 Frontier Airlines
Seattle — Denver
13h 41m stop
07:10 — 10:29 F92356 Frontier Airlines
Denver — San Antonio
18h 47m
including layover
Find flight
from$73
15:20 — 23:38
15:20 — 19:04 UA1476 United Airlines
Seattle — Denver
1h 21m stop
20:25 — 23:38 UA2028 United Airlines
Denver — San Antonio
6h 18m
including layover
Find flight
from$180
17:28 — 04:59
+1 day
17:28 — 19:55 NK204 Spirit Airlines
Seattle — Las Vegas
4h 31m stop
00:26 — 04:59 NK1058 Spirit Airlines
Las Vegas — San Antonio
9h 31m
including layover
Find flight
from$103
19:45 — 04:59
+1 day
19:45 — 22:13 NK414 Spirit Airlines
Seattle — Las Vegas
2h 13m stop
00:26 — 04:59 NK1058 Spirit Airlines
Las Vegas — San Antonio
7h 14m
including layover
Find flight
from$136
22:08 — 08:19
+1 day
20:28 — 00:14 F91176 Frontier Airlines
Seattle — Denver
3h 15m stop
16:25 — 19:38 F92356 Frontier Airlines
Denver — San Antonio
8h 11m
including layover
Find flight
from$73
23:59 — 08:28
+1 day
23:59 — 06:14 UA2379 United Airlines
Seattle — Houston
1h 6m stop
07:20 — 08:28 UA222 United Airlines
Houston — San Antonio
6h 29m
including layover
Find flight
from$180
23:59 — 11:18
+1 day
23:59 — 06:14 UA2379 United Airlines
Seattle — Houston
3h 56m stop
10:10 — 11:18 UA1186 United Airlines
Houston — San Antonio
9h 19m
including layover
Find flight
from$180
06:00 — 05:04
+1 day
06:00 — 08:46 NK801 Spirit Airlines
Seattle — Los Angeles
4h 54m stop
13:40 — 15:01 NK1494 Spirit Airlines
Los Angeles — Las Vegas
9h 29m stop
00:30 — 05:04 NK1058 Spirit Airlines
Las Vegas — San Antonio
21h 4m
including layover
Find flight
from$174
08:44 — 23:10
08:44 — 11:01 UA1777 United Airlines
Seattle — San Francisco
3h 56m stop
14:57 — 20:50 UA242 United Airlines
San Francisco — Houston
1h 15m stop
22:05 — 23:10 UA1645 United Airlines
Houston — San Antonio
12h 26m
including layover
Find flight
from$186
08:44 — 23:38
08:44 — 11:01 UA1777 United Airlines
Seattle — San Francisco
1h 59m stop
13:00 — 16:40 UA1417 United Airlines
San Francisco — Denver
3h 45m stop
20:25 — 23:38 UA2028 United Airlines
Denver — San Antonio
12h 54m
including layover
Find flight
from$186
11:56 — 23:10
11:56 — 14:13 UA2848 United Airlines
Seattle — San Francisco
44m stop
14:57 — 20:50 UA242 United Airlines
San Francisco — Houston
1h 15m stop
22:05 — 23:10 UA1186 United Airlines
Houston — San Antonio
9h 14m
including layover
Find flight
from$188
16:00 — 10:09
+1 day
16:00 — 18:31 NK414 Spirit Airlines
Seattle — Las Vegas
5h 18m stop
23:49 — 07:15 NK1853 Spirit Airlines
Las Vegas — Orlando
45m stop
08:00 — 10:09 NK446 Spirit Airlines
Orlando — San Antonio
16h 9m
including layover
Find flight
from$129
17:28 — 17:46
+1 day
17:28 — 19:55 NK204 Spirit Airlines
Seattle — Las Vegas
9h 35m stop
05:30 — 13:02 NK867 Spirit Airlines
Las Vegas — Miami
2h 26m stop
15:28 — 17:46 NK955 Spirit Airlines
Miami — San Antonio
22h 18m
including layover
Find flight
from$162
21:21 — 19:35
+1 day
21:21 — 23:50 NK1456 Spirit Airlines
Seattle — Las Vegas
8h 33m stop
08:23 — 09:45 NK1723 Spirit Airlines
Las Vegas — Los Angeles
5h 5m stop
14:50 — 19:35 NK497 Spirit Airlines
Los Angeles — San Antonio
20h 14m
including layover
Find flight
from$192
*Departure and arrival times - local. Updated on April 4, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to San Antonio depends on and how to choose the most interesting flight option for you.

Distance between Seattle and San Antonio is 2854 miles. Time difference between the cities is 2h. Airplanes depart 05:00 to 23:59 from 3 Seattle airports and arrive 05:00 to 23:59 to 5 San Antonio airports. Average flight time is 3h 51m.

  • The fastest flight 3h 45m
  • Average flight time 3h 51m
  • The earliest flight 05:00
  • The latest flight 23:59
  • Distance 1774 ml

The cheapest months to travel to San Antonio are november (from 73 $), december (from 92 $), january (from 97 $).

The most expensive months are february (from 102 $), january (from 97 $), december (from 92 $).

What is the lowest airfare Seattle to San Antonio?

The cheapest plane ticket found by our users is $73. This airfare is for economy class on one-way F91176 flight by Frontier Airlines for February 21, 2025 which leaves Seattle-Tacoma Intl in Seattle at 22:08 am and arrives at San Antonio San Antonio at 08:19.

Economy class
$73
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Business class
?
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First class
?
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Popular Airlines on the Route

The flight Seattle — San Antonio is served by 7 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 61 departures per week at the price of from $ 192 . And the most expensive tickets are offered by Volaris airline - from $ 966.

Direct flights

There are 2 nonstop flights on the route. The fastest direct flight is AS446 by Alaska Airlines takes 3h 45m and the cheapest is F91176 by Frontier Airlines for $200.

  • AS - Alaska Airlines
    from $200
    Find
See more direct flights

Connecting Flights

There are 267 flights with layovers on the route. The fastest connecting flight is UA1829 by United Airlines takes 5h 40m and the cheapest is F91176 by Frontier Airlines for $73.

  • AS - Alaska Airlines
    from $192
    Find
  • F9 - Frontier Airlines
    from $73
    Find
  • SY - Sun Country Airlines
    from $272
    Find
  • Y4 - Volaris
    from $403
    Find
  • UA - United Airlines
    from $180
    Find
  • AM - Aeromexico
    from $792
    Find
  • NK - Spirit Airlines
    from $103
    Find
See more connecting flights

Airports

You can fly from Seattle to San Antonio from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

  • Boeing Field International Airport-BFI
    Find
  • Seattle-Tacoma Intl-SEA
    from $73
    Find
  • Kenmore Air Harbor SPB-LKE
    Find

San Antonio airports

  • Randolph AFB-RND
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  • Martindale AAF-MDA
    Find
  • San Antonio-SAT
    Find
  • Kelly AFB-SKF
    Find
  • Stinson Municipal-SSF
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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