$118+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SEA
Oct 5 — Oct 121
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 April, booked 87 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 September 5, 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 September 5, 2026.
This Super.com deal was found by Cheapflights users on 9/1. 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.
Tue 9/228:20 pm -
1 stop20h 48m
Sun 10/259:16 pm -
1 stop22h 33m
Deal found 9/1![Frontier logo]()
$248
This Expedia deal was found by Cheapflights users on 8/31. 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.
Mon 10/198:21 pm -
1 stop20h 51m
Thu 10/229:16 pm -
1 stop22h 33m
Deal found 8/31![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 8/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:50 pm -
1 stop13h 52m
Tue 9/2910:57 am -
1 stop25h 23m
Deal found 8/31![Frontier logo]()
$253
This CheapOair deal was found by Cheapflights users on 8/31. 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 9/268:20 pm -
1 stop20h 48m
Sat 10/244:27 pm -
1 stop24h 59m
Deal found 8/31![Frontier logo]()
$254
This Trip.com deal was found by Cheapflights users on 9/2. 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.
Sun 10/1810:34 pm -
1 stop13h 14m
Wed 10/214:27 pm -
1 stop24h 59m
Deal found 9/2![Frontier logo]()
$257
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:34 pm -
1 stop13h 14m
Fri 10/169:16 pm -
1 stop14h 36m
Deal found 9/5![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:21 pm -
1 stop20h 51m
Mon 10/268:00 pm -
2 stops23h 34m
Deal found 9/4![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 9/1. 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.
Fri 9/189:50 pm -
1 stop13h 52m
Fri 9/254:27 pm -
1 stop24h 58m
Deal found 9/1![Frontier logo]()
$262
This Super.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:19 pm -
1 stop20h 23m
Tue 9/294:27 pm -
1 stop24h 58m
Deal found 9/3![Frontier logo]()
$264
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:50 pm -
1 stop13h 52m
Sat 10/104:27 pm -
1 stop24h 59m
Deal found 9/5![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 -
1 stop14h 30m
Tue 11/178:09 pm -
2 stops21h 16m
Deal found 9/2![Frontier logo]()
$269
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 September 5, 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 September 5, 2026.
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/261:12 pm -
1 stop6h 25m
Sat 10/243:55 pm -
1 stop6h 03m
Deal found 8/31![United Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 8/31. 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 stop6h 13m
Wed 11/2510:45 pm -
1 stop9h 09m
Deal found 8/31![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 8/31. 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 10/193:55 pm -
2 stops8h 50m
Thu 10/222:05 pm -
1 stop8h 35m
Deal found 8/31![Southwest logo]()
$291
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/284:45 pm -
1 stop6h 27m
Sat 1/308:30 am -
2 stops9h 00m
Deal found 9/3![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 9/1. 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 10/13:55 pm -
2 stops8h 45m
Thu 10/86:15 am -
1 stop8h 00m
Deal found 9/1![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/31. 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 11/241:52 pm -
2 stops11h 26m
Thu 11/265:05 am -
1 stop5h 42m
Deal found 8/31![United Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 9/2. 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 1/75:55 am -
2 stops9h 35m
Mon 1/116:00 am -
2 stops7h 50m
Deal found 9/2![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:48 pm -
1 stop8h 27m
Mon 11/96:30 pm -
2 stops11h 59m
Deal found 9/4![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 8/31. 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 11/246:50 pm -
2 stops8h 50m
Thu 11/265:05 am -
2 stops9h 30m
Deal found 8/31![Southwest logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:45 am -
1 stop9h 32m
Sat 10/315:05 am -
1 stop5h 41m
Deal found 9/4![United Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:45 am -
2 stops12h 05m
Mon 11/2311:59 pm -
1 stop6h 30m
Deal found 9/3![United Airlines logo]()
$400
Last-minute flights from San Antonio to SeattleDiscover last-minute flight deals from San Antonio to Seattle. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Seattle. Data last updated September 5, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/1. 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.
Fri 9/189:50 pm -
1 stop13h 52m
Fri 9/254:27 pm -
1 stop24h 58m
Deal found 9/1![Frontier logo]()
$262
This CheapOair deal was found by Cheapflights users on 9/1. 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.
Fri 9/188:20 pm -
1 stop20h 48m
Wed 9/239:45 pm -
1 stop11h 59m
Deal found 9/1![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 8/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:50 pm -
1 stop13h 52m
Tue 9/2910:57 am -
1 stop25h 23m
Deal found 8/31![Frontier logo]()
$253
This Super.com deal was found by Cheapflights users on 9/1. 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.
Tue 9/228:20 pm -
1 stop20h 48m
Sun 10/259:16 pm -
1 stop22h 33m
Deal found 9/1![Frontier logo]()
$248
This Super.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:19 pm -
1 stop20h 23m
Tue 9/294:27 pm -
1 stop24h 58m
Deal found 9/3![Frontier logo]()
$264
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:50 pm -
1 stop13h 52m
Sat 10/104:27 pm -
1 stop24h 59m
Deal found 9/5![Frontier logo]()
$268
This CheapOair deal was found by Cheapflights users on 8/31. 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 9/268:20 pm -
1 stop20h 48m
Sat 10/244:27 pm -
1 stop24h 59m
Deal found 8/31![Frontier logo]()
$254
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:34 pm -
1 stop13h 14m
Fri 10/169:16 pm -
1 stop14h 36m
Deal found 9/5![Frontier logo]()
$258
This Trip.com deal was found by Cheapflights users on 9/2. 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.
Sun 10/1810:34 pm -
1 stop13h 14m
Wed 10/214:27 pm -
1 stop24h 59m
Deal found 9/2![Frontier logo]()
$257
This Expedia deal was found by Cheapflights users on 8/31. 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.
Mon 10/198:21 pm -
1 stop20h 51m
Thu 10/229:16 pm -
1 stop22h 33m
Deal found 8/31![Frontier logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:21 pm -
1 stop20h 51m
Mon 10/268:00 pm -
2 stops23h 34m
Deal found 9/4![Frontier logo]()
$261
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 September 5, 2026.
Search for one-way flight options from San Antonio to Seattle. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:39 pm -
1 stop7h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:20 pm -
1 stop20h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$121
This Super.com deal was found by Cheapflights users on 9/1. 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 9/259:50 pm -
1 stop13h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$122
This Super.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:29 pm -
1 stop14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:34 pm -
1 stop13h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$124
This CheapOair deal was found by Cheapflights users on 9/1. 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.
Fri 10/98:21 pm -
1 stop20h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$126
This Super.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:50 pm -
1 stop13h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$136
This Super.com deal was found by Cheapflights users on 9/1. 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.
Tue 9/153:19 pm -
1 stop20h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$138
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/31:12 pm -
Nonstop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![United Airlines logo]()
$139
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 September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $248 (Super.com) |
One-way from | $118 (Frontier) |
Popular in | July |
Cheapest in | October |
Average price | $332 |
Good round-trip deal | $447 or less |
Good one-way deal | $238 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 September 5, 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
Fri 10/2
6:54 pm-1:15 am
1 stop8h 21m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$139
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Wed 9/16
9:24 am-4:14 pm
1 stop8h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$139
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Tue 10/27
6:40 am-1:35 pm
2 stops8h 55m
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
Sun 11/8
5:30 am-2:39 pm
2 stops11h 09m
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
Fri 9/11
1:55 pm-9:15 pm
1 stop9h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Thu 9/17
7:50 pm-12:45 am
1 stop6h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Fri 9/11
12:40 pm-9:15 pm
2 stops10h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$174
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Sat 9/19
4:12 pm-9:38 pm
1 stop7h 26m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$189
Quickest round-trip
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Fri 1/1
4:41 pm-9:25 pm
1 stop6h 44m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$200
San AntonioSeattle
SAT San Antonio - SEA Seattle/Tacoma Intl
SATSEA
San Antonio
Sat 9/26
1:12 pm-5:37 pm
1 stop6h 25m
Seattle/Tacoma Intl
Sat 10/24
3:55 pm-11:58 pm
1 stop6h 03m
$277
Showing 1-10 of 20 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 September.
| 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
Prices
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 86 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 $269). Flying from San Antonio to Seattle in July is currently the most expensive (average of $416). 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 September 5, 2026.
It’s optimal to fly from San Antonio to Seattle in the morning. By choosing this option you can save up to 21% 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.
Phoenix (PHX) – chosen by Cheapflights users on 33% 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 $214.
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 15m.
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 September 5, 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
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
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
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
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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 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$252 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$257 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$176 | Average$279 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$297 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$214 | Average$362 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$216 | Average$368 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$217 | Average$411 | FlexibilityNo cancel fee | On-time75% |