Cheap Flights from San Antonio, TX to Seattle, WA from $90

Return flight: Seattle – San Antonio

On Cheapflightsplus.com you will find 5 direct and 230 connecting flights from San Antonio to Seattle. You can compare airfare deals from 6 airlines and multiple travel sites from $90, book and save on cheap plane tickets and last minute offers. Also check out SAT-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip San Antonio to Seattle 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: $90 (one-way), $154 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from San Antonio to Seattle. 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
07:00 — 09:24
07:00 — 09:24 AS495 Alaska Airlines
San Antonio — Seattle
4h 24m
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from$97
19:37 — 21:53
19:37 — 21:53 HA6561 Hawaiian Airlines
San Antonio — Seattle
4h 16m
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from$93
19:37 — 21:53
19:37 — 21:53 AS494 Alaska Airlines
San Antonio — Seattle
4h 16m
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from$97
19:37 — 21:53
19:37 — 21:53 HA6517 Hawaiian Airlines
San Antonio — Seattle
4h 16m
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from$110
19:44 — 22:05
19:44 — 22:05 AS404 Alaska Airlines
San Antonio — Seattle
4h 21m
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from$96
05:30 — 10:22
05:30 — 06:36 UA469 United Airlines
San Antonio — Houston
59m stop
08:05 — 10:52 UA1894 United Airlines
Houston — Seattle
6h 52m
including layover
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from$130
05:30 — 12:46
05:30 — 06:34 UA469 United Airlines
San Antonio — Houston
3h 26m stop
10:00 — 12:46 UA1486 United Airlines
Houston — Seattle
9h 16m
including layover
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from$130
06:00 — 15:53
06:00 — 06:44 NK1059 Spirit Airlines
San Antonio — Las Vegas
6h 26m stop
13:10 — 15:53 NK781 Spirit Airlines
Las Vegas — Seattle
11h 53m
including layover
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from$114
07:45 — 14:19
07:45 — 09:34 UA1245 United Airlines
San Antonio — San Francisco
2h 31m stop
12:05 — 14:19 UA433 United Airlines
San Francisco — Seattle
8h 34m
including layover
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from$130
08:03 — 13:21
08:00 — 09:16 AS4387 Alaska Airlines
San Antonio — Dallas
1h 43m stop
13:00 — 15:15 AS543 Alaska Airlines
Dallas — Seattle
7h 18m
including layover
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from$144
09:00 — 13:28
09:00 — 10:18 UA2853 United Airlines
San Antonio — Denver
1h 10m stop
11:28 — 13:28 UA690 United Airlines
Denver — Seattle
6h 28m
including layover
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from$130
09:00 — 15:31
08:55 — 10:13 UA2853 United Airlines
San Antonio — Denver
3h 17m stop
13:56 — 15:52 UA594 United Airlines
Denver — Seattle
8h 31m
including layover
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from$130
11:45 — 19:18
11:45 — 12:49 UA1282 United Airlines
San Antonio — Houston
3h 41m stop
16:30 — 19:18 UA2084 United Airlines
Houston — Seattle
9h 33m
including layover
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from$130
12:31 — 17:32
12:31 — 13:45 AS4622 Alaska Airlines
San Antonio — Dallas
1h 27m stop
15:12 — 17:32 AS415 Alaska Airlines
Dallas — Seattle
7h 1m
including layover
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from$144
13:43 — 17:49
13:43 — 15:00 UA1312 United Airlines
San Antonio — Denver
50m stop
15:50 — 17:49 UA1254 United Airlines
Denver — Seattle
6h 6m
including layover
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from$132
13:44 — 17:57
13:44 — 15:00 UA490 United Airlines
San Antonio — Denver
1h 1m stop
16:01 — 17:57 UA745 United Airlines
Denver — Seattle
6h 13m
including layover
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from$132
14:55 — 20:44
14:55 — 16:23 F92355 Frontier Airlines
San Antonio — Denver
2h 9m stop
18:32 — 20:44 F94545 Frontier Airlines
Denver — Seattle
7h 49m
including layover
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from$90
16:22 — 21:16
16:22 — 17:25 UA2157 United Airlines
San Antonio — Houston
1h 5m stop
18:30 — 21:16 UA1544 United Airlines
Houston — Seattle
6h 54m
including layover
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from$130
16:31 — 22:37
16:21 — 17:25 UA1494 United Airlines
San Antonio — Houston
2h 15m stop
19:50 — 22:37 UA2456 United Airlines
Houston — Seattle
8h 6m
including layover
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from$130
17:56 — 22:37
18:01 — 19:07 UA2170 United Airlines
San Antonio — Houston
48m stop
20:13 — 23:00 UA2456 United Airlines
Houston — Seattle
6h 41m
including layover
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from$130
17:56 — 23:17
17:56 — 19:05 UA2078 United Airlines
San Antonio — Houston
1h 25m stop
20:30 — 23:17 UA2456 United Airlines
Houston — Seattle
7h 21m
including layover
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from$130
18:35 — 07:59
+1 day
18:45 — 21:40 SY1836 Sun Country Airlines
San Antonio — Minneapolis
8h 53m stop
07:36 — 09:21 SY281 Sun Country Airlines
Minneapolis — Seattle
15h 24m
including layover
Find flight
from$121
18:59 — 23:42
18:59 — 20:29 F92097 Frontier Airlines
San Antonio — Denver
1h 11m stop
21:36 — 23:44 F94545 Frontier Airlines
Denver — Seattle
6h 43m
including layover
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from$90
20:14 — 00:34
+1 day
20:12 — 21:45 F92097 Frontier Airlines
San Antonio — Denver
44m stop
22:29 — 00:34 F93405 Frontier Airlines
Denver — Seattle
6h 20m
including layover
Find flight
from$94
20:14 — 18:59
+1 day
20:12 — 21:45 F92097 Frontier Airlines
San Antonio — Denver
19h 12m stop
16:57 — 19:06 F91175 Frontier Airlines
Denver — Seattle
24h 45m
including layover
Find flight
from$99
14:11 — 16:25
+1 day
14:11 — 15:31 NK1274 Spirit Airlines
San Antonio — Los Angeles
5h 37m stop
19:20 — 20:34 NK1052 Spirit Airlines
Los Angeles — Las Vegas
15h 14m stop
13:40 — 16:25 NK1681 Spirit Airlines
Las Vegas — Seattle
28h 14m
including layover
Find flight
from$116
*Departure and arrival times - local. Updated on June 24, 2025

Flight Information

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

Distance between San Antonio and Seattle is 2854 miles. Time difference between the cities is 2h. Airplanes depart 05:00 to 22:57 from 5 San Antonio airports and arrive 05:00 to 22:57 to 3 Seattle airports. Average flight time is 4h 16m.

  • The fastest flight 4h 16m
  • Average flight time 4h 16m
  • The earliest flight 05:00
  • The latest flight 22:57
  • Distance 1774 ml

The cheapest months to travel to Seattle are september (from 120 $), july (from 121 $), august (from 125 $).

The most expensive months are december (from 348 $), february (from 246 $), january (from 240 $).

What is the lowest airfare San Antonio to Seattle?

The cheapest plane ticket found by our users is $90. This airfare is for economy class on one-way F92355 flight by Frontier Airlines for September 27, 2025 which leaves San Antonio in San Antonio at 14:55 am and arrives at Seattle Seattle-Tacoma Intl at 20:44.

Economy class
$90
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Business class
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First class
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Popular Airlines on the Route

The flight San Antonio — Seattle is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Spirit Airlines - 48 departures per week at the price of from $ 114 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 614.

Direct flights

There are 5 nonstop flights on the route. The fastest direct flight is HA6561 by Hawaiian Airlines takes 4h 16m and the cheapest is F92355 by Frontier Airlines for $93.

  • AS - Alaska Airlines
    from $96
    Find
  • HA - Hawaiian Airlines
    from $93
    Find
See more direct flights

Connecting Flights

There are 230 flights with layovers on the route. The fastest connecting flight is UA1312 by United Airlines takes 6h 6m and the cheapest is F92355 by Frontier Airlines for $90.

  • NK - Spirit Airlines
    from $114
    Find
  • AS - Alaska Airlines
    from $144
    Find
  • F9 - Frontier Airlines
    from $90
    Find
  • SY - Sun Country Airlines
    from $121
    Find
  • UA - United Airlines
    from $130
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See more connecting flights

Airports

You can fly from San Antonio to Seattle from 5 airports (Randolph AFB, Martindale AAF, San Antonio, Kelly AFB, Stinson Municipal).

San Antonio airports

  • Randolph AFB-RND
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  • Martindale AAF-MDA
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  • San Antonio-SAT
    from $90
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  • Kelly AFB-SKF
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  • Stinson Municipal-SSF
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Seattle airports

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