Cheap Flights from Seattle, WA to San Antonio, TX from $88

Return flight: San Antonio – Seattle

On Cheapflightsplus.com you will find 8 direct and 254 connecting flights from Seattle to San Antonio. You can compare airfare deals from 6 airlines and multiple travel sites from $88, 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: $88 (one-way), $151 (round-trip).
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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
12:33 — 18:37
12:33 — 18:37 HA6891 Hawaiian Airlines
Seattle — San Antonio
4h 4m
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from$93
12:34 — 18:46
12:34 — 18:46 HA6441 Hawaiian Airlines
Seattle — San Antonio
4h 12m
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from$92
12:46 — 18:48
12:46 — 18:48 HA6576 Hawaiian Airlines
Seattle — San Antonio
4h 2m
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from$92
12:46 — 18:48
12:46 — 18:48 AS449 Alaska Airlines
Seattle — San Antonio
4h 2m
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from$94
17:59 — 23:59
17:59 — 23:59 HA6747 Hawaiian Airlines
Seattle — San Antonio
4h
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from$92
23:11 — 05:10
+1 day
23:11 — 05:10 HA6890 Hawaiian Airlines
Seattle — San Antonio
3h 59m
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from$147
23:11 — 05:10
+1 day
23:11 — 05:10 AS494 Alaska Airlines
Seattle — San Antonio
3h 59m
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from$151
23:36 — 05:40
+1 day
23:36 — 05:40 AS423 Alaska Airlines
Seattle — San Antonio
4h 4m
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from$112
05:00 — 13:16
05:00 — 11:19 UA1668 United Airlines
Seattle — Houston
51m stop
12:10 — 13:16 UA468 United Airlines
Houston — San Antonio
6h 16m
including layover
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from$129
05:07 — 12:43
05:07 — 08:48 UA2269 United Airlines
Seattle — Denver
47m stop
09:35 — 12:43 UA2063 United Airlines
Denver — San Antonio
5h 36m
including layover
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from$128
06:00 — 14:00
06:00 — 09:51 F93406 Frontier Airlines
Seattle — Denver
52m stop
10:43 — 14:00 F92356 Frontier Airlines
Denver — San Antonio
6h
including layover
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from$88
06:25 — 18:02
06:25 — 10:16 F93406 Frontier Airlines
Seattle — Denver
4h 31m stop
15:35 — 18:51 F92098 Frontier Airlines
Denver — San Antonio
9h 37m
including layover
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from$103
07:05 — 15:26
07:05 — 13:33 UA2135 United Airlines
Seattle — Houston
46m stop
14:20 — 15:26 UA697 United Airlines
Houston — San Antonio
6h 21m
including layover
Find flight
from$128
07:05 — 17:57
07:05 — 13:34 UA2135 United Airlines
Seattle — Houston
3h 16m stop
16:50 — 17:57 UA6233 United Airlines
Houston — San Antonio
8h 52m
including layover
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from$128
09:50 — 18:36
09:50 — 15:46 AS426 Alaska Airlines
Seattle — Dallas
1h 32m stop
17:34 — 18:39 AS4477 Alaska Airlines
Dallas — San Antonio
6h 46m
including layover
Find flight
from$142
09:50 — 19:27
09:50 — 15:53 AS426 Alaska Airlines
Seattle — Dallas
2h 22m stop
18:15 — 19:27 AS4325 Alaska Airlines
Dallas — San Antonio
7h 37m
including layover
Find flight
from$142
10:26 — 19:32
10:40 — 17:05 UA1005 United Airlines
Seattle — Houston
1h 35m stop
18:45 — 19:52 UA1477 United Airlines
Houston — San Antonio
7h 6m
including layover
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from$128
10:40 — 21:17
10:40 — 17:05 UA1005 United Airlines
Seattle — Houston
3h 5m stop
20:10 — 21:17 UA1542 United Airlines
Houston — San Antonio
8h 37m
including layover
Find flight
from$130
11:11 — 20:46
11:11 — 14:58 UA1049 United Airlines
Seattle — Denver
2h 37m stop
17:35 — 20:46 UA1110 United Airlines
Denver — San Antonio
7h 35m
including layover
Find flight
from$130
13:00 — 22:17
13:00 — 15:15 UA1620 United Airlines
Seattle — San Francisco
1h 33m stop
16:48 — 22:17 UA424 United Airlines
San Francisco — San Antonio
7h 17m
including layover
Find flight
from$130
13:37 — 23:42
13:40 — 19:36 AS549 Alaska Airlines
Seattle — Dallas
2h 54m stop
22:49 — 23:56 AS4300 Alaska Airlines
Dallas — San Antonio
8h 5m
including layover
Find flight
from$142
14:24 — 23:59
14:24 — 18:15 UA2859 United Airlines
Seattle — Denver
2h 28m stop
20:43 — 23:59 UA1801 United Airlines
Denver — San Antonio
7h 35m
including layover
Find flight
from$129
15:58 — 05:00
+1 day
15:20 — 17:51 NK2328 Spirit Airlines
Seattle — Las Vegas
6h 4m stop
00:33 — 05:04 NK2705 Spirit Airlines
Las Vegas — San Antonio
11h 2m
including layover
Find flight
from$113
16:58 — 05:04
+1 day
16:58 — 19:36 NK782 Spirit Airlines
Seattle — Las Vegas
4h 54m stop
00:30 — 05:04 NK1058 Spirit Airlines
Las Vegas — San Antonio
10h 6m
including layover
Find flight
from$112
17:30 — 18:33
+1 day
17:30 — 19:58 NK1682 Spirit Airlines
Seattle — Las Vegas
17h 53m stop
13:51 — 18:33 NK1586 Spirit Airlines
Las Vegas — San Antonio
23h 3m
including layover
Find flight
from$116
20:01 — 18:02
+1 day
19:10 — 23:12 F91176 Frontier Airlines
Seattle — Denver
14h 53m stop
15:20 — 18:36 F92098 Frontier Airlines
Denver — San Antonio
20h 1m
including layover
Find flight
from$103
23:59 — 09:47
+1 day
23:59 — 05:25 SY290 Sun Country Airlines
Seattle — Minneapolis
1h 44m stop
07:00 — 09:53 SY1835 Sun Country Airlines
Minneapolis — San Antonio
7h 48m
including layover
Find flight
from$119
08:00 — 22:48
08:00 — 16:10 UA2217 United Airlines
Seattle — Washington D.C.
1h 45m stop
17:55 — 20:13 UA2217 United Airlines
Washington D.C. — Houston
1h 32m stop
21:45 — 22:48 UA1475 United Airlines
Houston — San Antonio
12h 48m
including layover
Find flight
from$134
15:58 — 12:02
+1 day
15:20 — 17:51 NK2328 Spirit Airlines
Seattle — Las Vegas
1h 40m stop
19:56 — 21:15 NK2508 Spirit Airlines
Las Vegas — Los Angeles
9h 47m stop
08:54 — 13:42 NK2701 Spirit Airlines
Los Angeles — San Antonio
18h 4m
including layover
Find flight
from$109
16:58 — 23:30
+1 day
16:58 — 19:36 NK782 Spirit Airlines
Seattle — Las Vegas
9h 24m stop
05:00 — 06:18 NK465 Spirit Airlines
Las Vegas — Los Angeles
12h 21m stop
18:39 — 23:30 NK848 Spirit Airlines
Los Angeles — San Antonio
28h 32m
including layover
Find flight
from$119
*Departure and arrival times - local. Updated on June 6, 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 00:20 to 23:59 from 3 Seattle airports and arrive 00:20 to 23:59 to 5 San Antonio airports. Average flight time is 4h 2m.

  • The fastest flight 3h 59m
  • Average flight time 4h 2m
  • The earliest flight 00:20
  • The latest flight 23:59
  • Distance 1774 ml

The cheapest months to travel to San Antonio are may (from 108 $), june (from 109 $), september (from 118 $).

The most expensive months are november (from 339 $), february (from 282 $), december (from 272 $).

What is the lowest airfare Seattle to San Antonio?

The cheapest plane ticket found by our users is $88. This airfare is for economy class on one-way F93406 flight by Frontier Airlines for September 27, 2025 which leaves Seattle-Tacoma Intl in Seattle at 06:00 am and arrives at San Antonio San Antonio at 14:00.

Economy class
$88
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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 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 62 departures per week at the price of from $ 94 . And the most expensive tickets are offered by United Airlines airline - from $ 569.

Direct flights

There are 8 nonstop flights on the route. The fastest direct flight is HA6890 by Hawaiian Airlines takes 3h 59m and the cheapest is F93406 by Frontier Airlines for $92.

  • AS - Alaska Airlines
    from $94
    Find
  • HA - Hawaiian Airlines
    from $92
    Find
See more direct flights

Connecting Flights

There are 254 flights with layovers on the route. The fastest connecting flight is UA2269 by United Airlines takes 5h 36m and the cheapest is F93406 by Frontier Airlines for $88.

  • AS - Alaska Airlines
    from $142
    Find
  • F9 - Frontier Airlines
    from $88
    Find
  • SY - Sun Country Airlines
    from $119
    Find
  • HA - Hawaiian Airlines
    from $471
    Find
  • UA - United Airlines
    from $128
    Find
  • NK - Spirit Airlines
    from $109
    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 $88
    Find
  • Kenmore Air Harbor SPB-LKE
    Find

San Antonio airports

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