$124+ Cheap flights from San Antonio to Seattle (SAT - SEA)
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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SEA
Aug 26 — Sep 21
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Seattle 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 San Antonio to Seattle/Tacoma Intl are usually found in October or February, booked 75 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from San Antonio to Seattle
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Cheapest flights from San Antonio to SeattleExplore the most affordable flight options available from San Antonio to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.
Explore the most affordable flight options available from San Antonio to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.
This Super.com deal was found by Cheapflights users on 7/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:32 pm
SAT
- SEA
1 stop15h 32m
Frontier
Tue 8/117:06 pm
SEA
- SAT
1 stop21h 48m
Frontier
Deal found 7/22![Frontier logo]()
$264
This Southwest deal was found by Cheapflights users on 7/22. 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 9/205:40 pm
SAT
- SEA
1 stop9h 10m
Southwest
Mon 9/2811:00 pm
SEA
- SAT
1 stop9h 20m
Southwest
Deal found 7/22![Southwest logo]()
$266
This CheapOair deal was found by Cheapflights users on 7/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:26 pm
SAT
- SEA
1 stop14h 53m
Frontier
Sun 8/239:29 pm
SEA
- SAT
1 stop22h 00m
Frontier
Deal found 7/23![Frontier logo]()
$267
This CheapOair deal was found by Cheapflights users on 7/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/19:32 pm
SAT
- SEA
1 stop15h 07m
Frontier
Mon 8/319:29 pm
SEA
- SAT
1 stop22h 00m
Frontier
Deal found 7/22![Frontier logo]()
$269
This Southwest deal was found by Cheapflights users on 7/22. 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 8/2112:40 pm
SAT
- SEA
2 stops10h 35m
Southwest
Fri 8/2811:00 pm
SEA
- SAT
1 stop9h 00m
Southwest
Deal found 7/22![Southwest logo]()
$271
This Delta deal was found by Cheapflights users on 7/21. 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.
Sat 8/2912:39 pm
SAT
- SEA
1 stop8h 05m
Delta
Thu 9/311:56 am
SEA
- SAT
1 stop10h 32m
Delta
Deal found 7/21![Delta logo]()
$272
This CheapOair deal was found by Cheapflights users on 7/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:39 pm
SAT
- SEA
1 stop15h 25m
Frontier
Tue 8/117:06 pm
SEA
- SAT
1 stop21h 48m
Frontier
Deal found 7/22![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:26 pm
SAT
- SEA
1 stop14h 53m
Frontier
Wed 9/28:53 pm
SEA
- SAT
1 stop22h 36m
Frontier
Deal found 7/24![Frontier logo]()
$275
This Delta deal was found by Cheapflights users on 7/24. 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 11/52:00 pm
SAT
- SEA
1 stop10h 03m
Delta
Sun 11/85:35 am
SEA
- SAT
1 stop6h 05m
Delta
Deal found 7/24![Delta logo]()
$276
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Mon 8/35:35 pm
SAT
- SEA
1 stop6h 51m
American Airlines
Thu 8/66:10 am
SEA
- SAT
1 stop8h 23m
American Airlines
Deal found 7/22![American Airlines logo]()
$277
This CheapOair deal was found by Cheapflights users on 7/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:39 pm
SAT
- SEA
1 stop15h 38m
Frontier
Thu 8/138:53 pm
SEA
- SAT
1 stop21h 44m
Frontier
Deal found 7/23![Frontier logo]()
$278
Best flights from San Antonio to SeattleDiscover carefully curated flight deals from San Antonio to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
Discover carefully curated flight deals from San Antonio to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/21. 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 9/212:55 pm
SAT
- SEA
2 stops9h 20m
Southwest
Sun 9/65:10 am
SEA
- SAT
1 stop6h 15m
Southwest
Deal found 7/21![Southwest logo]()
$308
This United Airlines deal was found by Cheapflights users on 7/22. 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 9/912:00 pm
SAT
- SEA
2 stops10h 43m
United Airlines
Tue 9/159:00 am
SEA
- SAT
2 stops11h 44m
United Airlines
Deal found 7/22![United Airlines logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 11/195:21 pm
SAT
- SEA
Nonstop4h 34m
Alaska Airlines
Mon 11/2310:58 am
SEA
- SAT
Nonstop3h 59m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 7/23. 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 10/99:20 pm
SAT
- SEA
1 stop6h 15m
Southwest
Tue 10/135:35 am
SEA
- SAT
2 stops8h 30m
Southwest
Deal found 7/23![Southwest logo]()
$318
This Southwest deal was found by Cheapflights users on 7/25. 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 9/173:30 pm
SAT
- SEA
2 stops10h 25m
Southwest
Mon 9/219:05 am
SEA
- SAT
1 stop12h 50m
Southwest
Deal found 7/25![Southwest logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 7/24. 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.
Sat 8/154:44 pm
SAT
- SEA
Nonstop4h 26m
Alaska Airlines
Wed 8/1910:00 am
SEA
- SAT
Nonstop4h 13m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 7/21. 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 9/11:30 pm
SAT
- SEA
2 stops7h 40m
Southwest
Fri 9/45:00 am
SEA
- SAT
2 stops7h 55m
Southwest
Deal found 7/21![Southwest logo]()
$363
This United Airlines deal was found by Cheapflights users on 7/22. 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 9/57:35 am
SAT
- SEA
2 stops12h 54m
United Airlines
Sat 9/127:00 am
SEA
- SAT
2 stops11h 52m
United Airlines
Deal found 7/22![United Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Fri 9/44:39 pm
SAT
- SEA
1 stop8h 25m
United Airlines
Wed 9/97:11 am
SEA
- SAT
2 stops11h 41m
United Airlines
Deal found 7/25![United Airlines logo]()
$488
This Southwest deal was found by Cheapflights users on 7/21. 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 8/1512:50 pm
SAT
- SEA
2 stops9h 40m
Southwest
Mon 8/175:00 am
SEA
- SAT
2 stops10h 10m
Southwest
Deal found 7/21![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 7/22. 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 8/512:55 pm
SAT
- SEA
2 stops9h 20m
Southwest
Sat 8/85:00 am
SEA
- SAT
2 stops9h 25m
Southwest
Deal found 7/22![Southwest logo]()
$423
This Southwest deal was found by Cheapflights users on 7/24. 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 12/227:30 am
SAT
- SEA
2 stops8h 20m
Southwest
Mon 12/287:30 am
SEA
- SAT
2 stops14h 55m
Southwest
Deal found 7/24![Southwest logo]()
$514
Last-minute flights from San Antonio to SeattleDiscover last-minute flight deals from San Antonio to Seattle. Data last updated July 27, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Seattle. Data last updated July 27, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/19:32 pm
SAT
- SEA
1 stop15h 07m
Frontier
Mon 8/319:29 pm
SEA
- SAT
1 stop22h 00m
Frontier
Deal found 7/22![Frontier logo]()
$269
This CheapOair deal was found by Cheapflights users on 7/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:39 pm
SAT
- SEA
1 stop15h 38m
Frontier
Thu 8/138:53 pm
SEA
- SAT
1 stop21h 44m
Frontier
Deal found 7/23![Frontier logo]()
$278
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Mon 8/35:35 pm
SAT
- SEA
1 stop6h 51m
American Airlines
Thu 8/66:10 am
SEA
- SAT
1 stop8h 23m
American Airlines
Deal found 7/22![American Airlines logo]()
$277
This CheapOair deal was found by Cheapflights users on 7/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:39 pm
SAT
- SEA
1 stop15h 25m
Frontier
Tue 8/117:06 pm
SEA
- SAT
1 stop21h 48m
Frontier
Deal found 7/22![Frontier logo]()
$274
This Delta deal was found by Cheapflights users on 7/22. 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.
Wed 8/56:50 am
SAT
- SEA
1 stop8h 09m
Delta
Sat 8/87:16 am
SEA
- SAT
1 stop6h 43m
Delta
Deal found 7/22![Delta logo]()
$283
This Super.com deal was found by Cheapflights users on 7/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:32 pm
SAT
- SEA
1 stop15h 32m
Frontier
Tue 8/117:06 pm
SEA
- SAT
1 stop21h 48m
Frontier
Deal found 7/22![Frontier logo]()
$264
This Southwest deal was found by Cheapflights users on 7/24. 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 8/1712:40 pm
SAT
- SEA
2 stops10h 35m
Southwest
Sat 8/225:00 am
SEA
- SAT
2 stops9h 25m
Southwest
Deal found 7/24![Southwest logo]()
$276
This CheapOair deal was found by Cheapflights users on 7/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:26 pm
SAT
- SEA
1 stop14h 53m
Frontier
Sun 8/239:29 pm
SEA
- SAT
1 stop22h 00m
Frontier
Deal found 7/23![Frontier logo]()
$267
This Southwest deal was found by Cheapflights users on 7/22. 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 8/2112:40 pm
SAT
- SEA
2 stops10h 35m
Southwest
Fri 8/2811:00 pm
SEA
- SAT
1 stop9h 00m
Southwest
Deal found 7/22![Southwest logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:26 pm
SAT
- SEA
1 stop14h 53m
Frontier
Wed 9/28:53 pm
SEA
- SAT
1 stop22h 36m
Frontier
Deal found 7/24![Frontier logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:26 pm
SAT
- SEA
1 stop14h 53m
Frontier
Mon 8/317:06 pm
SEA
- SAT
1 stop22h 25m
Frontier
Deal found 7/24![Frontier logo]()
$281
One-way flights from San Antonio to SeattleSearch for one-way flight options from San Antonio to Seattle. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
Search for one-way flight options from San Antonio to Seattle. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/21. 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 8/77:05 pm
SAT
- SEA
1 stop7h 15m
Southwest
Deal found 7/21![Southwest logo]()
$124
This Super.com deal was found by Cheapflights users on 7/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:26 pm
SAT
- SEA
1 stop14h 53m
Frontier
Deal found 7/21![Frontier logo]()
$126
This Super.com deal was found by Cheapflights users on 7/24. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:32 pm
SAT
- SEA
1 stop15h 32m
Frontier
Deal found 7/24![Frontier logo]()
$128
This Delta deal was found by Cheapflights users on 7/22. 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 8/144:49 pm
SAT
- SEA
1 stop6h 56m
Delta
Deal found 7/22![Delta logo]()
$129
This Jettzy deal was found by Cheapflights users on 7/24. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:49 pm
SAT
- SEA
1 stop15h 15m
Frontier
Deal found 7/24![Frontier logo]()
$131
This Trip.com deal was found by Cheapflights users on 7/24. 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.
Thu 8/139:32 pm
SAT
- SEA
1 stop15h 32m
Frontier
Deal found 7/24![Frontier logo]()
$133
This Delta deal was found by Cheapflights users on 7/24. 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.
Mon 8/104:49 pm
SAT
- SEA
1 stop8h 55m
Delta
Deal found 7/24![Delta logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:26 pm
SAT
- SEA
1 stop14h 53m
Frontier
Deal found 7/22![Frontier logo]()
$135
This Southwest deal was found by Cheapflights users on 7/22. 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 8/267:35 am
SAT
- SEA
1 stop6h 40m
Southwest
Deal found 7/22![Southwest logo]()
$138
This Southwest deal was found by Cheapflights users on 7/25. 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 9/84:20 pm
SAT
- SEA
2 stops8h 50m
Southwest
Deal found 7/25![Southwest logo]()
$143
This Super.com deal was found by Cheapflights users on 7/24. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:32 pm
SAT
- SEA
1 stop15h 07m
Frontier
Deal found 7/24![Frontier logo]()
$144
This Super.com deal was found by Cheapflights users on 7/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:39 pm
SAT
- SEA
1 stop15h 38m
Frontier
Deal found 7/25![Frontier logo]()
$145
Find flight deals from San Antonio to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Seattle (SEA). 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 July 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $264 (Super.com) |
One-way from | $124 (Southwest) |
Popular in | July |
Cheapest in | October |
Average price | $405 |
Good round-trip deal | $467 or less |
Good one-way deal | $266 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Seattle 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 July 27, 2026.
Use the filters below to find and compare flights from San Antonio to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Wed 9/2
12:55 pm-8:15 pm
2 stops9h 20m
Seattle/Tacoma Intl
Sun 9/6
5:10 am-1:25 pm
1 stop6h 15m
$308
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Fri 10/9
9:20 pm-1:35 am
1 stop6h 15m
Seattle/Tacoma Intl
Tue 10/13
5:35 am-4:05 pm
2 stops8h 30m
$318
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Thu 9/17
3:30 pm-11:55 pm
2 stops10h 25m
Seattle/Tacoma Intl
Mon 9/21
9:05 am-11:55 pm
1 stop12h 50m
$339
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Tue 9/1
1:30 pm-7:10 pm
2 stops7h 40m
Seattle/Tacoma Intl
Fri 9/4
5:00 am-2:55 pm
2 stops7h 55m
$363
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Wed 9/9
12:00 pm-8:43 pm
2 stops10h 43m
Seattle/Tacoma Intl
Tue 9/15
9:00 am-10:44 pm
2 stops11h 44m
$368
Quickest round-trip
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Thu 11/19
5:21 pm-7:55 pm
Nonstop4h 34m
Seattle/Tacoma Intl
Mon 11/23
10:58 am-4:57 pm
Nonstop3h 59m
$387
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Sat 8/15
4:44 pm-7:10 pm
Nonstop4h 26m
Seattle/Tacoma Intl
Wed 8/19
10:00 am-4:13 pm
Nonstop4h 13m
$397
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Sat 8/15
12:50 pm-8:30 pm
2 stops9h 40m
Seattle/Tacoma Intl
Mon 8/17
5:00 am-5:10 pm
2 stops10h 10m
$418
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Wed 8/5
12:55 pm-8:15 pm
2 stops9h 20m
Seattle/Tacoma Intl
Sat 8/8
5:00 am-4:25 pm
2 stops9h 25m
$423
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Sat 9/5
7:35 am-6:29 pm
2 stops12h 54m
Seattle/Tacoma Intl
Sat 9/12
7:00 am-8:52 pm
2 stops11h 52m
$473
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from San Antonio to Seattle
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 San Antonio to Seattle in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Antonio-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-Seattle 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 San Antonio-Seattle 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 San Antonio to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from San Antonio with our price prediction graph.
SAT-SEA
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 San Antonio to Seattle
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How far ahead should I book a flight from San Antonio to Seattle?
The best time to book flights from San Antonio to Seattle is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from San Antonio to Seattle?
Currently, October is the cheapest month in which you can book a flight from San Antonio to Seattle (average of $266). Flying from San Antonio to Seattle in July is currently the most expensive (average of $405). 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 SAT to SEA?
Find hourly flight availability from San Antonio to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 27, 2026.
It’s optimal to fly from San Antonio to Seattle in the morning. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the evening.
What’s the top layover airport for flights from San Antonio to Seattle?
Share of 1-stop round-trip flights from San Antonio to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 40% of 1-stop itineraries from San Antonio to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from San Antonio to Seattle?
Average round-trip fare for 1-stop flights from San Antonio to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Chicago (MDW) is the most affordable 1-stop option, with an average round-trip price of $194.
What’s the fastest layover option from San Antonio to Seattle?
Shortest average travel time for 1-stop one-way flights from San Antonio to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 11m.
Which airport typically offers the quickest layover for flights from San Antonio to Seattle?
Average layover duration for 1-stop one-way flights from San Antonio to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 00m.
The best insider tips for San Antonio to Seattle 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 San Antonio to Seattle trip
Our travel experts
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated July 27, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta from San Antonio to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Related info for your journey
Find useful and relevant information for your journey from San Antonio to Seattle. 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 Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah
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San Antonio and Seattle flights
Browse other San Antonio and Seattle flight options. Last updated on July 27, 2026.
Other flights from San Antonio
Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on July 27, 2026.
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Top 7 airlines flying from San Antonio to Seattle
Discover the top 7 airlines that operate flights from San Antonio to Seattle. 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 July 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$255 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$138 | Average$337 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$149 | Average$274 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$296 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$198 | Average$355 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$214 | Average$349 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$217 | Average$400 | FlexibilityNo cancel fee | On-time75% |