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.

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

The cheapest months to travel to Seattle are september (from 114 $), july (from 115 $), august (from 119 $).

The most expensive months are december (from 331 $), february (from 234 $), january (from 228 $).

What is the lowest airfare San Antonio to Seattle?

The cheapest plane ticket found by our users is $114. 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
$114
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Business class
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First class
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Flight Schedule San Antonio (Texas) to Seattle (Washington)

06:30 — 08:50
4h 20m flight time
Find flight
from$216
San Antonio — Seattle
HA6562 Hawaiian Airlines
06:30 — 08:50
4h 20m flight time
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from$220
San Antonio — Seattle
AS400 Alaska Airlines
07:00 — 09:24
4h 24m flight time
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from$124
San Antonio — Seattle
AS495 Alaska Airlines
07:00 — 00:10+1day
19h 10m flight time
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from$133
06:45 — 07:59 San Antonio — Los Angeles
NK2700 Spirit Airlines
2h 14m stop
10:30 — 11:47 Los Angeles — Las Vegas
NK2685 Spirit Airlines
9h 45m stop
21:32 — 00:10 Las Vegas — Seattle
NK2625 Spirit Airlines
14:55 — 20:44
7h 49m flight time
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from$114
14:55 — 16:23 San Antonio — Denver
F92355 Frontier Airlines
2h 9m stop
18:32 — 20:44 Denver — Seattle
F94545 Frontier Airlines
15:56 — 14:11+1day
24h 15m flight time
Find flight
from$126
14:18 — 15:18 San Antonio — Las Vegas
F93417 Frontier Airlines
18h 25m stop
11:19 — 14:16 Las Vegas — Seattle
F92407 Frontier Airlines
18:59 — 23:42
6h 43m flight time
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from$115
18:59 — 20:29 San Antonio — Denver
F92097 Frontier Airlines
1h 11m stop
21:36 — 23:44 Denver — Seattle
F94545 Frontier Airlines
19:37 — 21:53
4h 16m flight time
Find flight
from$119
San Antonio — Seattle
HA6561 Hawaiian Airlines
19:37 — 21:53
4h 16m flight time
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from$124
San Antonio — Seattle
AS494 Alaska Airlines
19:37 — 21:53
4h 16m flight time
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from$140
San Antonio — Seattle
HA6517 Hawaiian Airlines
19:44 — 22:05
4h 21m flight time
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from$122
San Antonio — Seattle
AS404 Alaska Airlines
19:50 — 00:34+1day
6h 44m flight time
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from$120
12:07 — 13:29 San Antonio — Denver
F92355 Frontier Airlines
1h 13m stop
17:17 — 19:27 Denver — Seattle
F93405 Frontier Airlines
19:50 — 18:12+1day
24h 22m flight time
Find flight
from$125
19:36 — 21:04 San Antonio — Denver
F92355 Frontier Airlines
18h 47m stop
16:08 — 18:15 Denver — Seattle
F91175 Frontier Airlines
20:14 — 00:34+1day
6h 20m flight time
Find flight
from$120
20:12 — 21:45 San Antonio — Denver
F92097 Frontier Airlines
44m stop
22:29 — 00:34 Denver — Seattle
F93405 Frontier Airlines
20:14 — 18:59+1day
24h 45m flight time
Find flight
from$125
20:12 — 21:45 San Antonio — Denver
F92097 Frontier Airlines
19h 12m stop
16:57 — 19:06 Denver — Seattle
F91175 Frontier Airlines
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 and arrival times - local. Updated on October 12, 2025.

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 $ 779.

Direct flights

There are 7 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 $119.

  • AS - Alaska Airlines
    from $122
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  • HA - Hawaiian Airlines
    from $119
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Connecting Flights

There are 365 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 $114.

  • AS - Alaska Airlines
    from $183
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  • F9 - Frontier Airlines
    from $114
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  • SY - Sun Country Airlines
    from $154
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  • UA - United Airlines
    from $165
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  • NK - Spirit Airlines
    from $133
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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 $114
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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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