United Airlines Seattle to San Antonio Flights

Cheapflightsplus.com will find cheap United Airlines flights from Seattle to San Antonio. Compare airline ticket prices and book air tickets starting from $155 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — San Antonio (TX) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in january: one-way - $155, two-way – $266.
Direct flights
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
11:05 am — 11:15 pm
11:05 am — 5:10 pm UA747 United Airlines
Seattle — Chicago
2h 53m stop
8:03 pm — 11:15 pm UA1504 United Airlines
Chicago — San Antonio
10h 10m
including layover
Find flight
from$617
11:20 pm — 3:18 pm
+1 day
11:20 pm — 7:26 am UA341 United Airlines
Seattle — Newark
4h 32m stop
11:58 am — 3:18 pm UA1027 United Airlines
Newark — San Antonio
13h 58m
including layover
Find flight
from$375
12:35 pm — 9:03 pm
12:35 pm — 4:17 pm UA1483 United Airlines
Seattle — Denver
1h 32m stop
5:49 pm — 9:03 pm UA1762 United Airlines
Denver — San Antonio
6h 28m
including layover
Find flight
from$155
1:56 pm — 11:15 pm
1:56 pm — 8:20 pm UA1746 United Airlines
Seattle — Houston
1h 48m stop
10:08 pm — 11:15 pm UA2142 United Airlines
Houston — San Antonio
7h 19m
including layover
Find flight
from$258
1:59 pm — 11:14 pm
1:59 pm — 8:20 pm UA1334 United Airlines
Seattle — Houston
1h 45m stop
10:05 pm — 11:14 pm UA6158 United Airlines
Houston — San Antonio
7h 15m
including layover
Find flight
from$155
3:24 pm — 1:49 pm
+1 day
3:24 pm — 5:42 pm UA589 United Airlines
Seattle — San Francisco
14h 38m stop
8:20 am — 1:49 pm UA5468 United Airlines
San Francisco — San Antonio
20h 25m
including layover
Find flight
from$320
4:58 pm — 1:49 pm
+1 day
4:58 pm — 7:10 pm UA2482 United Airlines
Seattle — San Francisco
13h 10m stop
8:20 am — 1:49 pm UA5468 United Airlines
San Francisco — San Antonio
18h 51m
including layover
Find flight
from$320
7:00 am — 5:44 pm
7:00 am — 1:23 pm UA1788 United Airlines
Seattle — Houston
3h 7m stop
4:30 pm — 5:44 pm UA6135 United Airlines
Houston — San Antonio
8h 44m
including layover
Find flight
from$155
7:05 am — 6:39 pm
7:05 am — 9:25 am UA1403 United Airlines
Seattle — San Francisco
3h 30m stop
12:55 pm — 6:39 pm UA5435 United Airlines
San Francisco — San Antonio
9h 34m
including layover
Find flight
from$155
8:00 am — 8:21 pm
8:00 am — 4:06 pm UA1360 United Airlines
Seattle — Washington D.C.
1h 18m stop
5:24 pm — 8:21 pm UA1869 United Airlines
Washington D.C. — San Antonio
10h 21m
including layover
Find flight
from$656
9:00 am — 4:40 pm
8:30 am — 12:14 pm UA1829 United Airlines
Seattle — Denver
43m stop
1:41 pm — 4:54 pm UA1022 United Airlines
Denver — San Antonio
5h 40m
including layover
Find flight
from$155
9:20 am — 6:39 pm
9:20 am — 11:39 am UA1960 United Airlines
Seattle — San Francisco
1h 16m stop
12:55 pm — 6:39 pm UA5435 United Airlines
San Francisco — San Antonio
7h 19m
including layover
Find flight
from$155
12:35 pm — 11:14 pm
12:35 pm — 4:17 pm UA1483 United Airlines
Seattle — Denver
1h 3m stop
5:20 pm — 8:50 pm UA726 United Airlines
Denver — Houston
1h 15m stop
10:05 pm — 11:14 pm UA6158 United Airlines
Houston — San Antonio
8h 39m
including layover
Find flight
from$160
3:16 pm — 8:33 am
+1 day
3:16 pm — 7:01 pm UA757 United Airlines
Seattle — Denver
1h 29m stop
8:30 pm — 11:58 pm UA2419 United Airlines
Denver — Houston
7h 22m stop
7:20 am — 8:33 am UA6089 United Airlines
Houston — San Antonio
15h 17m
including layover
Find flight
from$386
5:00 am — 5:44 pm
5:00 am — 8:43 am UA2269 United Airlines
Seattle — Denver
57m stop
9:40 am — 1:11 pm UA2676 United Airlines
Denver — Houston
3h 19m stop
4:30 pm — 5:44 pm UA6135 United Airlines
Houston — San Antonio
10h 44m
including layover
Find flight
from$160
5:00 am — 3:42 pm
5:00 am — 8:43 am UA2269 United Airlines
Seattle — Denver
57m stop
9:40 am — 1:11 pm UA2676 United Airlines
Denver — Houston
1h 19m stop
2:37 pm — 3:49 pm UA2399 United Airlines
Houston — San Antonio
8h 42m
including layover
Find flight
from$160
6:15 am — 5:44 pm
6:15 am — 9:02 am UA1571 United Airlines
Seattle — Los Angeles
1h 13m stop
10:15 am — 3:36 pm UA1571 United Airlines
Los Angeles — Houston
54m stop
4:30 pm — 5:44 pm UA6135 United Airlines
Houston — San Antonio
9h 29m
including layover
Find flight
from$160
6:15 am — 7:22 pm
6:15 am — 9:02 am UA1571 United Airlines
Seattle — Los Angeles
1h 13m stop
10:15 am — 3:36 pm UA1571 United Airlines
Los Angeles — Houston
2h 34m stop
6:10 pm — 7:22 pm UA1477 United Airlines
Houston — San Antonio
11h 7m
including layover
Find flight
from$160
8:50 am — 11:15 pm
8:50 am — 12:36 pm UA1829 United Airlines
Seattle — Denver
4h 44m stop
5:20 pm — 8:50 pm UA726 United Airlines
Denver — Houston
1h 18m stop
10:08 pm — 11:15 pm UA2142 United Airlines
Houston — San Antonio
12h 25m
including layover
Find flight
from$329
*Departure and arrival times are local. Last updated on 01/21/2025

Flight Information

There are 49 flights by United Airlines from Seattle to San Antonio every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at San Antonio, Kelly AFB, Stinson Municipal, Randolph AFB, Martindale AAF.

Departures start from 11:05 am to 9:20 am. Nonstop flight is 5h 40m. The time difference between Seattle and San Antonio is 2h.

  • The fastest flight 5h 40m
  • Average flight time 10h 37m
  • The earliest flight 11:05 am
  • The latest flight 9:20 am
  • Distance 1774 ml

The cheapest months for traveling to San Antonio are november (from 152 $), january (from 155 $), february (from 155 $).

The most expensive and popular months are december (from 210 $), february (from 155 $), january (from 155 $).

The cheapest flight by United Airlines that our users were able to find is $155. This airfare is economy class on one-way UA1829 flight for February 1, 2025 leaving Seattle-Tacoma Intl in Seattle at 9:00 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 5 airline carriers between Seattle and San Antonio. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to San Antonio.

Nonstop flights

There’re no direct flights on this route. Try flights with stops.

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air 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 airfare.
  • 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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