$85+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SEA
May 23 — May 301
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 September, 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 April 23, 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 April 23, 2026.
This Delta deal was found by Cheapflights users on 4/20. 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 7/76:03 pm
SAT
- SEA
1 stop5h 57m
Delta
Sat 7/115:25 am
SEA
- SAT
1 stop6h 11m
Delta
Deal found 4/20![Delta logo]()
$255
This Southwest deal was found by Cheapflights users on 4/22. 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.
Thu 5/148:30 pm
SAT
- SEA
1 stop6h 25m
Southwest
Tue 5/196:50 am
SEA
- SAT
1 stop8h 10m
Southwest
Deal found 4/22![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 4/22. 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.
Tue 6/26:10 am
SAT
- SEA
1 stop13h 50m
Southwest
Wed 6/242:00 pm
SEA
- SAT
1 stop6h 45m
Southwest
Deal found 4/22![Southwest logo]()
$260
This CheapOair deal was found by Cheapflights users on 4/19. 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.
Thu 6/188:56 pm
SAT
- SEA
1 stop15h 39m
Frontier
Mon 6/228:12 pm
SEA
- SAT
1 stop21h 59m
Frontier
Deal found 4/19![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 4/19. 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.
Thu 5/77:54 pm
SAT
- SEA
1 stop15h 55m
Frontier
Mon 5/117:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/19![Frontier logo]()
$262
This CheapOair deal was found by Cheapflights users on 4/20. 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.
Thu 5/77:54 pm
SAT
- SEA
1 stop15h 55m
Frontier
Sun 5/107:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/20![Frontier logo]()
$263
This Delta deal was found by Cheapflights users on 4/21. 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.
Fri 5/154:47 pm
SAT
- SEA
1 stop9h 08m
Delta
Mon 5/257:15 am
SEA
- SAT
1 stop7h 50m
Delta
Deal found 4/21![Delta logo]()
$265
This CheapOair deal was found by Cheapflights users on 4/20. 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.
Mon 5/43:00 pm
SAT
- SEA
1 stop20h 49m
Frontier
Thu 5/77:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/20![Frontier logo]()
$266
This Southwest deal was found by Cheapflights users on 4/21. 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 5/274:55 pm
SAT
- SEA
2 stops8h 00m
Southwest
Wed 6/38:25 am
SEA
- SAT
1 stop6h 55m
Southwest
Deal found 4/21![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 4/20. 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 9/212:25 pm
SAT
- SEA
1 stop6h 27m
Delta
Tue 9/82:30 pm
SEA
- SAT
1 stop6h 48m
Delta
Deal found 4/20![Delta logo]()
$268
This Southwest deal was found by Cheapflights users on 4/21. 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 8/77:50 pm
SAT
- SEA
1 stop6h 50m
Southwest
Mon 8/176:15 am
SEA
- SAT
2 stops13h 45m
Southwest
Deal found 4/21![Southwest logo]()
$270
This Southwest deal was found by Cheapflights users on 4/22. 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 6/103:55 pm
SAT
- SEA
2 stops10h 45m
Southwest
Fri 6/125:35 pm
SEA
- SAT
1 stop6h 00m
Southwest
Deal found 4/22![Southwest logo]()
$271
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 April 23, 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 April 23, 2026.
This Southwest deal was found by Cheapflights users on 4/21. 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 5/201:35 pm
SAT
- SEA
2 stops9h 25m
Southwest
Wed 5/279:20 am
SEA
- SAT
2 stops6h 55m
Southwest
Deal found 4/21![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 8/251:45 pm
SAT
- SEA
2 stops11h 39m
United Airlines
Thu 9/312:10 pm
SEA
- SAT
1 stop7h 06m
United Airlines
Deal found 4/22![United Airlines logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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.
Fri 5/155:57 pm
SAT
- SEA
Nonstop4h 34m
Alaska Airlines
Tue 5/1911:35 pm
SEA
- SAT
Nonstop4h 05m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$407
This Southwest deal was found by Cheapflights users on 4/22. 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.
Thu 7/98:25 pm
SAT
- SEA
2 stops7h 15m
Southwest
Sun 7/128:05 pm
SEA
- SAT
1 stop12h 45m
Southwest
Deal found 4/22![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:02 pm
SAT
- SEA
1 stop6h 50m
United Airlines
Tue 5/127:08 am
SEA
- SAT
2 stops11h 41m
United Airlines
Deal found 4/21![United Airlines logo]()
$390
This Southwest deal was found by Cheapflights users on 4/20. 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 7/249:40 pm
SAT
- SEA
1 stop6h 00m
Southwest
Fri 7/315:30 am
SEA
- SAT
2 stops9h 25m
Southwest
Deal found 4/20![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 4/22. 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 5/92:25 pm
SAT
- SEA
2 stops9h 33m
United Airlines
Tue 5/1211:59 pm
SEA
- SAT
1 stop6h 43m
United Airlines
Deal found 4/22![United Airlines logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:57 pm
SAT
- SEA
Nonstop4h 34m
Alaska Airlines
Tue 7/710:58 pm
SEA
- SAT
Nonstop4h 02m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$507
This Southwest deal was found by Cheapflights users on 4/20. 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 9/45:35 am
SAT
- SEA
2 stops11h 25m
Southwest
Mon 9/711:00 pm
SEA
- SAT
1 stop9h 20m
Southwest
Deal found 4/20![Southwest logo]()
$487
This Southwest deal was found by Cheapflights users on 4/21. 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 6/136:20 pm
SAT
- SEA
2 stops8h 50m
Southwest
Sun 6/216:10 am
SEA
- SAT
2 stops13h 15m
Southwest
Deal found 4/21![Southwest logo]()
$498
This Southwest deal was found by Cheapflights users on 4/18. 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 7/208:25 pm
SAT
- SEA
2 stops7h 15m
Southwest
Sun 7/266:10 am
SEA
- SAT
2 stops13h 15m
Southwest
Deal found 4/18![Southwest logo]()
$498
Last-minute flights from San Antonio to SeattleDiscover last-minute flight deals from San Antonio to Seattle. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Seattle. Data last updated April 23, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 4/20. 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.
Mon 5/43:00 pm
SAT
- SEA
1 stop20h 49m
Frontier
Thu 5/77:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/20![Frontier logo]()
$266
This CheapOair deal was found by Cheapflights users on 4/19. 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.
Thu 5/77:54 pm
SAT
- SEA
1 stop15h 55m
Frontier
Mon 5/117:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/19![Frontier logo]()
$262
This CheapOair deal was found by Cheapflights users on 4/20. 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.
Thu 5/77:54 pm
SAT
- SEA
1 stop15h 55m
Frontier
Sun 5/107:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/20![Frontier logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:59 pm
SAT
- SEA
2 stops14h 50m
Frontier
Sun 5/177:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/21![Frontier logo]()
$272
This Southwest deal was found by Cheapflights users on 4/22. 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.
Thu 5/148:30 pm
SAT
- SEA
1 stop6h 25m
Southwest
Tue 5/196:50 am
SEA
- SAT
1 stop8h 10m
Southwest
Deal found 4/22![Southwest logo]()
$258
This CheapOair deal was found by Cheapflights users on 4/20. 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.
Thu 5/147:54 pm
SAT
- SEA
1 stop15h 55m
Frontier
Sun 5/177:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/20![Frontier logo]()
$261
This Delta deal was found by Cheapflights users on 4/20. 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 5/154:47 pm
SAT
- SEA
1 stop8h 08m
Delta
Sun 5/249:05 am
SEA
- SAT
1 stop10h 27m
Delta
Deal found 4/20![Delta logo]()
$255
This Delta deal was found by Cheapflights users on 4/21. 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.
Fri 5/154:47 pm
SAT
- SEA
1 stop9h 08m
Delta
Mon 5/257:15 am
SEA
- SAT
1 stop7h 50m
Delta
Deal found 4/21![Delta logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:54 pm
SAT
- SEA
2 stops23h 43m
Frontier
Sun 5/177:50 pm
SEA
- SAT
1 stop21h 09m
Frontier
Deal found 4/21![Frontier logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:54 pm
SAT
- SEA
1 stop16h 12m
Frontier
Thu 6/47:50 pm
SEA
- SAT
2 stops46h 24m
Frontier
Deal found 4/21![Frontier logo]()
$273
This Southwest deal was found by Cheapflights users on 4/21. 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 5/274:55 pm
SAT
- SEA
2 stops8h 00m
Southwest
Wed 6/38:25 am
SEA
- SAT
1 stop6h 55m
Southwest
Deal found 4/21![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 4/22. 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 5/294:15 pm
SAT
- SEA
1 stop8h 33m
Delta
Tue 6/26:00 am
SEA
- SAT
1 stop9h 20m
Delta
Deal found 4/22![Delta logo]()
$268
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 April 23, 2026.
Search for one-way flight options from San Antonio to Seattle. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
This Super.com deal was found by Cheapflights users on 4/20. 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.
Sun 5/107:54 pm
SAT
- SEA
1 stop15h 55m
Frontier
Deal found 4/20![Frontier logo]()
$85
This American Airlines deal was found by Cheapflights users on 4/20. 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 5/135:00 am
SAT
- SEA
1 stop6h 35m
American Airlines
Deal found 4/20![American Airlines logo]()
$87
This Delta deal was found by Cheapflights users on 4/20. 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 5/194:47 pm
SAT
- SEA
1 stop8h 08m
Delta
Deal found 4/20![Delta logo]()
$89
This Southwest deal was found by Cheapflights users on 4/20. 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 6/105:55 pm
SAT
- SEA
1 stop8h 45m
Southwest
Deal found 4/20![Southwest logo]()
$90
This Southwest deal was found by Cheapflights users on 4/21. 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 6/95:55 pm
SAT
- SEA
2 stops7h 35m
Southwest
Deal found 4/21![Southwest logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Tue 5/197:54 pm
SAT
- SEA
1 stop15h 55m
Frontier
Deal found 4/19![Frontier logo]()
$98
This Southwest deal was found by Cheapflights users on 4/22. 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.
Tue 9/2911:30 am
SAT
- SEA
2 stops8h 40m
Southwest
Deal found 4/22![Southwest logo]()
$105
This Super.com deal was found by Cheapflights users on 4/21. 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.
Fri 6/57:54 pm
SAT
- SEA
1 stop16h 12m
Frontier
Deal found 4/21![Frontier logo]()
$110
This Trip.com deal was found by Cheapflights users on 4/20. 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.
Fri 5/87:54 pm
SAT
- SEA
1 stop15h 55m
Frontier
Deal found 4/20![Frontier logo]()
$111
This CheapOair deal was found by Cheapflights users on 4/18. 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 5/24:04 pm
SAT
- SEA
1 stop19h 23m
Frontier
Deal found 4/18![Frontier logo]()
$117
This Southwest deal was found by Cheapflights users on 4/20. 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 9/86:40 am
SAT
- SEA
1 stop6h 35m
Southwest
Deal found 4/20![Southwest logo]()
$123
This KAYAK deal was found by Cheapflights users on 4/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:47 pm
SAT
- SEA
1 stop9h 08m
Delta
Deal found 4/20![Delta logo]()
$127
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 April 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $255 (Delta) |
One-way from | $85 (Super.com) |
Popular in | July |
Cheapest in | October |
Average price | $286 |
Good round-trip deal | $457 or less |
Good one-way deal | $316 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 April 23, 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 5/20
1:35 pm-9:00 pm
2 stops9h 25m
Seattle/Tacoma Intl
Wed 5/27
9:20 am-6:15 pm
2 stops6h 55m
$334
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Tue 8/25
1:45 pm-11:24 pm
2 stops11h 39m
Seattle/Tacoma Intl
Thu 9/3
12:10 pm-9:16 pm
1 stop7h 06m
$356
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Thu 7/9
8:25 pm-1:40 am
2 stops7h 15m
Seattle/Tacoma Intl
Sun 7/12
8:05 pm-10:50 am
1 stop12h 45m
$368
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Fri 7/24
9:40 pm-1:40 am
1 stop6h 00m
Seattle/Tacoma Intl
Fri 7/31
5:30 am-4:55 pm
2 stops9h 25m
$370
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Thu 5/7
6:02 pm-10:52 pm
1 stop6h 50m
Seattle/Tacoma Intl
Tue 5/12
7:08 am-8:49 pm
2 stops11h 41m
$390
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Sat 5/9
2:25 pm-9:58 pm
2 stops9h 33m
Seattle/Tacoma Intl
Tue 5/12
11:59 pm-8:42 am
1 stop6h 43m
$391
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Fri 5/15
5:57 pm-8:31 pm
Nonstop4h 34m
Seattle/Tacoma Intl
Tue 5/19
11:35 pm-5:40 am
Nonstop4h 05m
$407
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Fri 9/4
5:35 am-3:00 pm
2 stops11h 25m
Seattle/Tacoma Intl
Mon 9/7
11:00 pm-10:20 am
1 stop9h 20m
$487
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Sat 6/13
6:20 pm-1:10 am
2 stops8h 50m
Seattle/Tacoma Intl
Sun 6/21
6:10 am-9:25 pm
2 stops13h 15m
$498
San AntonioSeattle
SAT - SEA
SATSEA
San Antonio
Mon 7/20
8:25 pm-1:40 am
2 stops7h 15m
Seattle/Tacoma Intl
Sun 7/26
6:10 am-9:25 pm
2 stops13h 15m
$498
Showing 1-10 of 23 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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
Prices
More
How far ahead should I book a flight from San Antonio to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Seattle. Price data was last updated on April 17, 2026.
The best time to book flights from San Antonio to Seattle is 75 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 $257). Flying from San Antonio to Seattle in July is currently the most expensive (average of $397). 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 April 23, 2026.
It’s optimal to fly from San Antonio to Seattle in the afternoon. By choosing this option you can save up to 19% 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 45% 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 12m.
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 April 23, 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.
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Kent
Tumwater
Tukwila
Puyallup
Renton
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
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San Antonio and Seattle flights
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Other flights from San Antonio
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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 April 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$247 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$109 | Average$264 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$153 | Average$377 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$194 | Average$325 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$194 | Average$288 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$210 | Average$327 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$217 | Average$388 | FlexibilityNo cancel fee | On-time75% |