Cheap Flights from San Antonio, TX to Seattle, WA from $114

Return flight: Seattle – San Antonio

On Cheapflightsplus.com you will find 7 direct and 365 connecting flights from San Antonio to Seattle. You can compare airfare deals from 6 airlines and multiple travel sites from $114, 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: $114 (one-way), $195 (round-trip).
Direct flights
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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
06:30 — 08:50
06:30 — 08:50 HA6562 Hawaiian Airlines
San Antonio — Seattle
4h 20m
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from$217
06:30 — 08:50
06:30 — 08:50 AS400 Alaska Airlines
San Antonio — Seattle
4h 20m
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from$221
07:00 — 09:24
07:00 — 09:24 AS495 Alaska Airlines
San Antonio — Seattle
4h 24m
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from$124
07:00 — 00:10
+1 day
06:45 — 07:59 NK2700 Spirit Airlines
San Antonio — Los Angeles
2h 14m stop
10:30 — 11:47 NK2685 Spirit Airlines
Los Angeles — Las Vegas
9h 45m stop
21:32 — 00:10 NK2625 Spirit Airlines
Las Vegas — Seattle
19h 10m
including layover
Find flight
from$134
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$114
15:56 — 14:11
+1 day
14:18 — 15:18 F93417 Frontier Airlines
San Antonio — Las Vegas
18h 25m stop
11:19 — 14:16 F92407 Frontier Airlines
Las Vegas — Seattle
24h 15m
including layover
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from$126
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$115
19:37 — 21:53
19:37 — 21:53 HA6561 Hawaiian Airlines
San Antonio — Seattle
4h 16m
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from$120
19:37 — 21:53
19:37 — 21:53 AS494 Alaska Airlines
San Antonio — Seattle
4h 16m
Find flight
from$124
19:37 — 21:53
19:37 — 21:53 HA6517 Hawaiian Airlines
San Antonio — Seattle
4h 16m
Find flight
from$141
19:44 — 22:05
19:44 — 22:05 AS404 Alaska Airlines
San Antonio — Seattle
4h 21m
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from$122
19:50 — 00:34
+1 day
12:07 — 13:29 F92355 Frontier Airlines
San Antonio — Denver
1h 13m stop
17:17 — 19:27 F93405 Frontier Airlines
Denver — Seattle
6h 44m
including layover
Find flight
from$120
19:50 — 18:12
+1 day
19:36 — 21:04 F92355 Frontier Airlines
San Antonio — Denver
18h 47m stop
16:08 — 18:15 F91175 Frontier Airlines
Denver — Seattle
24h 22m
including layover
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from$125
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$120
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$125
*Departure and arrival times - local. Updated on September 14, 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 20m.

  • The fastest flight 4h 16m
  • Average flight time 4h 20m
  • The earliest flight 05:00
  • The latest flight 22:57
  • Distance 1774 ml

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 Alaska Airlines - 71 departures per week at the price of from $ 122 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 781.

Direct flights

There are 7 nonstop flights on the route. The fastest direct flight is HA6561 by Hawaiian Airlines takes 4h 16m.

  • AS - Alaska Airlines
    from $122
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  • HA - Hawaiian Airlines
    from $120
    Find
See more direct flights

Connecting Flights

There are 365 flights with layovers on the route. The fastest connecting flight is UA1312 by United Airlines takes 6h 6m.

  • AS - Alaska Airlines
    from $184
    Find
  • F9 - Frontier Airlines
    from $114
    Find
  • SY - Sun Country Airlines
    from $155
    Find
  • UA - United Airlines
    from $166
    Find
  • NK - Spirit Airlines
    from $134
    Find
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 $114
    Find
  • Kelly AFB-SKF
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  • Stinson Municipal-SSF
    Find

Seattle airports

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