$89+ Cheap flights from San Antonio to Seattle (SAT - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SEA
Nov 23 — Nov 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 February or April, booked 89 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from San Antonio to Seattle
Cheapest
Best
Last-minute
One-way
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 October 24, 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 October 24, 2026.
This Southwest deal was found by Cheapflights users on 10/22. 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.
Mon 11/95:55 pm -
2 stops9h 05m
Wed 11/115:40 am -
2 stops9h 30m
Deal found 10/22![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 10/23. 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.
Wed 11/116:20 am -
1 stop8h 40m
Fri 11/135:30 am -
2 stops8h 45m
Deal found 10/23![Southwest logo]()
$276
This United Airlines deal was found by Cheapflights users on 10/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:57 pm -
1 stop6h 24m
Tue 12/811:59 pm -
1 stop6h 30m
Deal found 10/19![United Airlines logo]()
$277
This American Airlines deal was found by Cheapflights users on 10/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/256:00 am -
1 stop7h 30m
Mon 1/412:47 am -
1 stop5h 46m
Deal found 10/21![American Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Wed 11/258:28 pm -
2 stops26h 10m
Mon 11/309:53 pm -
1 stop19h 15m
Deal found 10/22![Frontier logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Thu 12/38:41 pm -
1 stop20h 59m
Sun 12/61:36 pm -
2 stops28h 26m
Deal found 10/21![Frontier logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Fri 11/208:28 pm -
2 stops18h 09m
Tue 11/249:53 pm -
1 stop21h 23m
Deal found 10/22![Frontier logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:29 pm -
1 stop13h 16m
Mon 11/169:13 pm -
2 stops20h 12m
Deal found 10/23![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Thu 12/38:41 pm -
1 stop20h 59m
Mon 12/78:56 pm -
2 stops19h 05m
Deal found 10/21![Frontier logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Fri 11/138:11 pm -
1 stop21h 01m
Sun 11/229:53 pm -
1 stop21h 23m
Deal found 10/22![Frontier logo]()
$288
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 11/178:56 am -
2 stops9h 31m
Sun 11/2211:59 pm -
1 stop6h 30m
Deal found 10/21![United Airlines logo]()
$289
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 October 24, 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 October 24, 2026.
This Southwest deal was found by Cheapflights users on 10/22. 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 12/65:55 pm -
2 stops8h 50m
Sun 12/136:15 am -
1 stop5h 30m
Deal found 10/22![Southwest logo]()
$290
This United Airlines deal was found by Cheapflights users on 10/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:30 am -
2 stops11h 09m
Sun 11/1511:59 pm -
1 stop6h 30m
Deal found 10/23![United Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Fri 12/45:00 pm -
Nonstop4h 40m
Sat 12/510:01 am -
Nonstop4h 01m
Deal found 10/19![Alaska Airlines logo]()
$452
This Southwest deal was found by Cheapflights users on 10/22. 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 11/116:10 am -
2 stops8h 50m
Sat 11/145:30 am -
2 stops10h 55m
Deal found 10/22![Southwest logo]()
$338
This Southwest deal was found by Cheapflights users on 10/20. 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 12/226:05 pm -
2 stops9h 40m
Tue 12/299:50 pm -
1 stop12h 20m
Deal found 10/20![Southwest logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:30 am -
2 stops12h 42m
Mon 11/239:05 am -
3 stops11h 46m
Deal found 10/20![United Airlines logo]()
$431
This Southwest deal was found by Cheapflights users on 10/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/15:50 am -
1 stop6h 45m
Thu 1/76:00 am -
2 stops7h 50m
Deal found 10/19![Southwest logo]()
$359
This Southwest deal was found by Cheapflights users on 10/20. 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.
Thu 11/196:10 am -
2 stops8h 50m
Sun 11/226:30 am -
2 stops14h 20m
Deal found 10/20![Southwest logo]()
$415
This Southwest deal was found by Cheapflights users on 10/21. 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 12/194:20 pm -
2 stops8h 45m
Mon 12/289:50 pm -
2 stops8h 45m
Deal found 10/21![Southwest logo]()
$428
Last-minute flights from San Antonio to SeattleDiscover last-minute flight deals from San Antonio to Seattle. Data last updated October 24, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Seattle. Data last updated October 24, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/22. 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.
Mon 11/95:55 pm -
2 stops9h 05m
Wed 11/115:40 am -
2 stops9h 30m
Deal found 10/22![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 10/23. 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.
Wed 11/116:20 am -
1 stop8h 40m
Fri 11/135:30 am -
2 stops8h 45m
Deal found 10/23![Southwest logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:29 pm -
1 stop13h 16m
Mon 11/169:13 pm -
2 stops20h 12m
Deal found 10/23![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Fri 11/138:11 pm -
1 stop21h 01m
Sun 11/229:53 pm -
1 stop21h 23m
Deal found 10/22![Frontier logo]()
$288
This American Airlines deal was found by Cheapflights users on 10/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:35 pm -
1 stop6h 34m
Sun 11/157:10 am -
1 stop6h 59m
Deal found 10/23![American Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Fri 11/1310:29 pm -
2 stops18h 43m
Wed 11/184:27 pm -
1 stop24h 58m
Deal found 10/22![Frontier logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Fri 11/1310:29 pm -
2 stops18h 43m
Sat 11/219:53 pm -
1 stop21h 23m
Deal found 10/22![Frontier logo]()
$293
This Cheapflightsfares deal was found by Cheapflights users on 10/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:20 pm -
1 stop20h 52m
Fri 11/209:53 pm -
1 stop21h 23m
Deal found 10/24![Frontier logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Sun 11/158:20 pm -
1 stop20h 52m
Sun 11/229:53 pm -
1 stop21h 23m
Deal found 10/22![Frontier logo]()
$297
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 11/178:56 am -
2 stops9h 31m
Sun 11/2211:59 pm -
1 stop6h 30m
Deal found 10/21![United Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Fri 11/208:28 pm -
2 stops18h 09m
Tue 11/249:53 pm -
1 stop21h 23m
Deal found 10/22![Frontier logo]()
$282
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 October 24, 2026.
Search for one-way flight options from San Antonio to Seattle. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Mon 12/2111:48 am -
1 stop7h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/156:47 pm -
1 stop22h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$96
This Delta deal was found by Cheapflights users on 10/20. 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.
Thu 11/1912:45 pm -
1 stop7h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Delta logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2010:11 pm -
1 stop16h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$113
This Southwest deal was found by Cheapflights users on 10/21. 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 12/1512:00 pm -
2 stops9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Southwest logo]()
$116
This Southwest deal was found by Cheapflights users on 10/22. 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.
Sat 11/145:40 am -
2 stops14h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Southwest logo]()
$122
This SmartFares deal was found by Cheapflights users on 10/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/217:57 pm -
1 stop6h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Delta logo]()
$128
This Southwest deal was found by Cheapflights users on 10/21. 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 12/163:00 pm -
2 stops9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Southwest logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2011:48 am -
1 stop7h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$134
This Expedia deal was found by Cheapflights users on 10/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2911:48 am -
1 stop7h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$136
This United Airlines deal was found by Cheapflights users on 10/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:30 am -
2 stops11h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$137
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 October 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $275 (Southwest) |
One-way from | $89 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $365 |
Good round-trip deal | $640 or less |
Good one-way deal | $453 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 7,457,451 searches. Data last updated October 24, 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 San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Wed 12/16
7:38 am-2:36 pm
1 stop8h 58m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$111
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Tue 2/2
11:50 am-9:17 pm
2 stops11h 27m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$137
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Fri 12/11
5:55 pm-12:45 am
2 stops8h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$144
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Wed 12/16
1:50 pm-8:47 pm
2 stops8h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$173
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Tue 12/15
11:47 am-11:44 pm
3 stops13h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$202
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Sat 11/14
5:30 am-8:47 pm
3 stops17h 17m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$202
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Fri 11/27
5:25 am-10:30 am
1 stop7h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$219
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Mon 12/21
6:50 pm-1:45 am
2 stops8h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$224
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Fri 11/20
6:45 pm-1:20 am
2 stops8h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$224
Quickest round-trip
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Mon 11/23
5:55 pm-8:31 pm
Nonstop4h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$239
Showing 1-10 of 19 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 October.
| 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 Accuracy- | 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
Prices
Airlines
More
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 88 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, February is the cheapest month in which you can book a flight from San Antonio to Seattle (average of $287). Flying from San Antonio to Seattle in July is currently the most expensive (average of $418). 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 October 24, 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 38% 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.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $281.
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 Dallas (DAL) have the shortest average one-way travel time for 1-stop routes: 6h 20m.
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 11m.
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 October 24, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, 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.
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
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
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Tacoma
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Centralia
Kent
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Ocean Shores
Ellensburg
Issaquah
Lakewood
Poulsbo
Marysville
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San Antonio and Seattle flights
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Top 6 airlines flying from San Antonio to Seattle
Discover the top 6 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 7,457,451 searches. Data last updated October 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$261 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$290 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$341 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$216 | Average$368 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$230 | Average$453 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$236 | Average$382 | FlexibilityNo cancel fee | On-time69% |