$123+ Cheap flights from Seattle to San Antonio (SEA - SAT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAT
Jul 8 — Jul 151
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to San Antonio with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Antonio are usually found in September or August, booked 70 days in advance, depart on a Thursday or Tuesday and return on a Thursday
Cheap flight deals from Seattle to San Antonio
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Best
Last-minute
One-way
Cheapest flights from Seattle to San AntonioExplore the most affordable flight options available from Seattle to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 8, 2026.
Explore the most affordable flight options available from Seattle to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 8, 2026.
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:00 am
SEA
- SAT
2 stops9h 25m
Southwest
Wed 8/1912:55 pm
SAT
- SEA
2 stops9h 20m
Southwest
Deal found 6/6![Southwest logo]()
$287
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:45 pm
SEA
- SAT
1 stop9h 35m
Southwest
Tue 8/412:55 pm
SAT
- SEA
2 stops9h 20m
Southwest
Deal found 6/4![Southwest logo]()
$290
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/12:03 pm
SEA
- SAT
1 stop7h 56m
American Airlines
Wed 7/225:35 pm
SAT
- SEA
1 stop9h 22m
American Airlines
Deal found 6/7![American Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:59 pm
SEA
- SAT
1 stop9h 50m
Delta
Thu 7/166:03 pm
SAT
- SEA
1 stop7h 56m
Delta
Deal found 6/7![Delta logo]()
$293
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:15 am
SEA
- SAT
1 stop10h 50m
Southwest
Wed 11/45:55 am
SAT
- SEA
2 stops9h 05m
Southwest
Deal found 6/8![Southwest logo]()
$296
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/122:25 pm
SEA
- SAT
1 stop8h 45m
Southwest
Thu 8/207:50 pm
SAT
- SEA
1 stop6h 50m
Southwest
Deal found 6/4![Southwest logo]()
$297
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:00 pm
SEA
- SAT
2 stops10h 35m
Southwest
Mon 7/278:35 pm
SAT
- SEA
1 stop6h 20m
Southwest
Deal found 6/3![Southwest logo]()
$298
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:05 am
SEA
- SAT
1 stop7h 51m
American Airlines
Sun 7/128:23 pm
SAT
- SEA
1 stop6h 34m
American Airlines
Deal found 6/4![American Airlines logo]()
$301
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/812:00 pm
SEA
- SAT
2 stops10h 35m
Southwest
Mon 7/135:20 pm
SAT
- SEA
1 stop9h 35m
Southwest
Deal found 6/6![Southwest logo]()
$302
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2512:35 pm
SEA
- SAT
1 stop9h 17m
Delta
Mon 6/294:44 pm
SAT
- SEA
1 stop7h 35m
Delta
Deal found 6/5![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:20 pm
SEA
- SAT
1 stop6h 00m
Southwest
Tue 7/145:55 pm
SAT
- SEA
2 stops7h 40m
Southwest
Deal found 6/4![Southwest logo]()
$306
This American Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:45 pm
SEA
- SAT
1 stop6h 14m
American Airlines
Tue 6/167:07 pm
SAT
- SEA
1 stop7h 52m
American Airlines
Deal found 6/3![American Airlines logo]()
$307
Best flights from Seattle to San AntonioDiscover carefully curated flight deals from Seattle to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 8, 2026.
Discover carefully curated flight deals from Seattle to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 8, 2026.
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:15 am
SEA
- SAT
1 stop6h 45m
Southwest
Tue 7/145:55 pm
SAT
- SEA
2 stops7h 40m
Southwest
Deal found 6/6![Southwest logo]()
$297
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/269:45 am
SEA
- SAT
1 stop10h 36m
Delta
Sun 6/286:30 am
SAT
- SEA
1 stop8h 22m
Delta
Deal found 6/5![Delta logo]()
$303
This Alaska Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:58 pm
SEA
- SAT
Nonstop4h 02m
Alaska Airlines
Wed 7/87:02 am
SAT
- SEA
Nonstop4h 23m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/812:00 pm
SEA
- SAT
2 stops10h 35m
Southwest
Tue 7/145:55 pm
SAT
- SEA
2 stops7h 40m
Southwest
Deal found 6/6![Southwest logo]()
$302
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/239:25 pm
SEA
- SAT
1 stop11h 00m
Southwest
Sat 8/2912:50 pm
SAT
- SEA
2 stops9h 40m
Southwest
Deal found 6/3![Southwest logo]()
$308
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/172:25 pm
SEA
- SAT
1 stop8h 50m
Southwest
Sun 7/197:40 pm
SAT
- SEA
1 stop7h 15m
Southwest
Deal found 6/5![Southwest logo]()
$363
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:30 am
SEA
- SAT
2 stops9h 25m
Southwest
Tue 8/412:55 pm
SAT
- SEA
2 stops9h 20m
Southwest
Deal found 6/5![Southwest logo]()
$366
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:30 am
SEA
- SAT
1 stop12h 05m
Southwest
Wed 7/13:55 pm
SAT
- SEA
2 stops10h 45m
Southwest
Deal found 6/3![Southwest logo]()
$420
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/251:30 pm
SEA
- SAT
2 stops10h 05m
Southwest
Wed 7/15:55 pm
SAT
- SEA
1 stop8h 45m
Southwest
Deal found 6/3![Southwest logo]()
$423
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/122:25 pm
SEA
- SAT
1 stop8h 45m
Southwest
Sun 6/147:40 pm
SAT
- SEA
1 stop7h 10m
Southwest
Deal found 6/6![Southwest logo]()
$439
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:55 am
SEA
- SAT
2 stops10h 35m
Southwest
Wed 7/13:55 pm
SAT
- SEA
2 stops10h 45m
Southwest
Deal found 6/3![Southwest logo]()
$448
This Southwest deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/205:30 am
SEA
- SAT
2 stops9h 10m
Southwest
Wed 6/245:55 pm
SAT
- SEA
2 stops7h 35m
Southwest
Deal found 6/7![Southwest logo]()
$458
Last-minute flights from Seattle to San AntonioDiscover last-minute flight deals from Seattle to San Antonio. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to San Antonio. Data last updated June 8, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:30 am
SEA
- SAT
1 stop6h 40m
Southwest
Mon 6/228:35 pm
SAT
- SEA
1 stop6h 15m
Southwest
Deal found 6/3![Southwest logo]()
$308
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/122:25 pm
SEA
- SAT
1 stop8h 45m
Southwest
Thu 8/207:50 pm
SAT
- SEA
1 stop6h 50m
Southwest
Deal found 6/4![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/172:36 pm
SEA
- SAT
1 stop7h 19m
United Airlines
Fri 6/195:57 pm
SAT
- SEA
1 stop6h 54m
United Airlines
Deal found 6/3![United Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2512:35 pm
SEA
- SAT
1 stop9h 17m
Delta
Mon 6/294:44 pm
SAT
- SEA
1 stop7h 35m
Delta
Deal found 6/5![Delta logo]()
$303
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/12:03 pm
SEA
- SAT
1 stop7h 56m
American Airlines
Wed 7/225:35 pm
SAT
- SEA
1 stop9h 22m
American Airlines
Deal found 6/7![American Airlines logo]()
$292
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:05 am
SEA
- SAT
1 stop7h 51m
American Airlines
Sun 7/128:23 pm
SAT
- SEA
1 stop6h 34m
American Airlines
Deal found 6/4![American Airlines logo]()
$301
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:59 pm
SEA
- SAT
1 stop9h 50m
Delta
Thu 7/166:03 pm
SAT
- SEA
1 stop7h 56m
Delta
Deal found 6/7![Delta logo]()
$293
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/812:00 pm
SEA
- SAT
2 stops10h 35m
Southwest
Mon 7/135:20 pm
SAT
- SEA
1 stop9h 35m
Southwest
Deal found 6/6![Southwest logo]()
$302
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/812:00 pm
SEA
- SAT
2 stops10h 35m
Southwest
Tue 7/145:55 pm
SAT
- SEA
2 stops7h 40m
Southwest
Deal found 6/8![Southwest logo]()
$307
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:20 pm
SEA
- SAT
1 stop6h 00m
Southwest
Tue 7/145:55 pm
SAT
- SEA
2 stops7h 40m
Southwest
Deal found 6/4![Southwest logo]()
$306
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:45 pm
SEA
- SAT
1 stop9h 35m
Southwest
Tue 8/412:55 pm
SAT
- SEA
2 stops9h 20m
Southwest
Deal found 6/4![Southwest logo]()
$290
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:00 pm
SEA
- SAT
2 stops10h 35m
Southwest
Mon 7/278:35 pm
SAT
- SEA
1 stop6h 20m
Southwest
Deal found 6/3![Southwest logo]()
$298
One-way flights from Seattle to San AntonioSearch for one-way flight options from Seattle to San Antonio. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
Search for one-way flight options from Seattle to San Antonio. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
This American Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1511:22 pm
SEA
- SAT
1 stop7h 18m
American Airlines
Deal found 6/3![American Airlines logo]()
$123
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/243:40 pm
SEA
- SAT
1 stop6h 15m
United Airlines
Deal found 6/5![United Airlines logo]()
$124
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:53 pm
SEA
- SAT
1 stop10h 17m
Delta
Deal found 6/5![Delta logo]()
$129
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:00 pm
SEA
- SAT
1 stop6h 00m
Southwest
Deal found 6/8![Southwest logo]()
$133
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/89:20 am
SEA
- SAT
1 stop11h 30m
Southwest
Deal found 6/6![Southwest logo]()
$134
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/205:00 am
SEA
- SAT
1 stop8h 39m
United Airlines
Deal found 6/5![United Airlines logo]()
$144
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:00 am
SEA
- SAT
1 stop8h 39m
United Airlines
Deal found 6/4![United Airlines logo]()
$149
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1511:49 pm
SEA
- SAT
1 stop6h 38m
United Airlines
Deal found 6/4![United Airlines logo]()
$154
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:00 am
SEA
- SAT
1 stop8h 39m
United Airlines
Deal found 6/3![United Airlines logo]()
$161
This Trip.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:06 pm
SEA
- SAT
1 stop21h 38m
Frontier
Deal found 6/7![Frontier logo]()
$165
Find flight deals from Seattle to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $287 (Southwest) |
One-way from | $123 (American Airlines) |
Popular in | May |
Cheapest in | September |
Average price | $377 |
Good round-trip deal | $467 or less |
Good one-way deal | $363 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 8, 2026.
Use the filters below to find and compare flights from Seattle to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Tue 7/14
5:15 am-2:00 pm
1 stop6h 45m
San Antonio
Tue 7/14
5:55 pm-11:35 pm
2 stops7h 40m
$297
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Wed 7/8
12:00 pm-12:35 am
2 stops10h 35m
San Antonio
Tue 7/14
5:55 pm-11:35 pm
2 stops7h 40m
$302
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Fri 6/26
9:45 am-10:21 pm
1 stop10h 36m
San Antonio
Sun 6/28
6:30 am-12:52 pm
1 stop8h 22m
$303
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Sun 8/23
9:25 pm-10:25 am
1 stop11h 00m
San Antonio
Sat 8/29
12:50 pm-8:30 pm
2 stops9h 40m
$308
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Fri 7/17
2:25 pm-1:15 am
1 stop8h 50m
San Antonio
Sun 7/19
7:40 pm-12:55 am
1 stop7h 15m
$363
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Thu 7/30
5:30 am-4:55 pm
2 stops9h 25m
San Antonio
Tue 8/4
12:55 pm-8:15 pm
2 stops9h 20m
$366
Quickest round-trip
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Wed 7/1
10:58 pm-5:00 am
Nonstop4h 02m
San Antonio
Wed 7/8
7:02 am-9:25 am
Nonstop4h 23m
$387
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Fri 6/26
6:30 am-8:35 pm
1 stop12h 05m
San Antonio
Wed 7/1
3:55 pm-12:40 am
2 stops10h 45m
$420
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Thu 6/25
1:30 pm-1:35 am
2 stops10h 05m
San Antonio
Wed 7/1
5:55 pm-12:40 am
1 stop8h 45m
$423
SeattleSan Antonio
SEA - SAT
SEASAT
Seattle/Tacoma Intl
Fri 6/12
2:25 pm-1:10 am
1 stop8h 45m
San Antonio
Sun 6/14
7:40 pm-12:50 am
1 stop7h 10m
$439
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Seattle to San Antonio
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to San Antonio in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Seattle with our price prediction graph.
SEA-SAT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to San Antonio
Prices
More
How far ahead should I book a flight from Seattle to San Antonio?
Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Seattle to San Antonio?
Currently, September is the cheapest month in which you can book a flight from Seattle to San Antonio (average of $266). Flying from Seattle to San Antonio in June is currently the most expensive (average of $442). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to SAT?
Find hourly flight availability from Seattle to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 8, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to San Antonio as you normally would.
What’s the top layover airport for flights from Seattle to San Antonio?
Share of 1-stop round-trip flights from Seattle to San Antonio chosen by Cheapflights users in the past 12 months, using the same layover each way.
Houston (IAH) – chosen by Cheapflights users on 33% of 1-stop itineraries from Seattle to San Antonio on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to San Antonio?
Average round-trip fare for 1-stop flights from Seattle to San Antonio, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $168.
What’s the fastest layover option from Seattle to San Antonio?
Shortest average travel time for 1-stop one-way flights from Seattle to San Antonio, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 5h 53m.
Which airport typically offers the quickest layover for flights from Seattle to San Antonio?
Average layover duration for 1-stop one-way flights from Seattle to San Antonio, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 0h 49m.
The best insider tips for Seattle to San Antonio flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to San Antonio trip
Our travel experts
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated June 8, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, andDelta from Seattle to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Food
7.1
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.1
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.1
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.1
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.1
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.1
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Seattle to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Seattle and San Antonio flights
Browse other Seattle and San Antonio flight options. Last updated on June 8, 2026.
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Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 8, 2026.
Top 7 airlines flying from Seattle to San Antonio
Discover the top 7 airlines that operate flights from Seattle to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$84 | Average$253 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$352 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$169 | Average$280 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$186 | Average$384 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$196 | Average$351 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$201 | Average$300 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$217 | Average$395 | FlexibilityNo cancel fee | On-time75% |