Find cheap Southwest flights to Seattle
WAS — SEA
Nov 11 — Nov 181
Round-trip
1 adult, Economy
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Cheapest Southwest flights from USA to SeattleExplore the most affordable Southwest flight options available from USA to Seattle. Find the lowest fares with prices last updated on October 12, 2026.
Explore the most affordable Southwest flight options available from USA to Seattle. Find the lowest fares with prices last updated on October 12, 2026.
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:55 pm -
1 stop5h 10m
Wed 11/47:00 am -
Nonstop2h 40m
Deal found 10/7![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:45 am -
1 stop5h 25m
Thu 11/56:30 am -
1 stop4h 10m
Deal found 10/8![Southwest logo]()
$128
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:45 pm -
1 stop6h 15m
Sun 11/16:30 am -
1 stop4h 10m
Deal found 10/8![Southwest logo]()
$132
Best Southwest flights from USA to SeattleDiscover carefully curated Southwest flight deals from USA to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
Discover carefully curated Southwest flight deals from USA to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:15 pm -
1 stop7h 25m
Fri 12/257:00 am -
Nonstop2h 40m
Deal found 10/8![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:45 pm -
1 stop6h 15m
Sun 11/16:30 am -
1 stop4h 10m
Deal found 10/7![Southwest logo]()
$132
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/255:05 pm -
1 stop4h 25m
Thu 12/315:15 am -
2 stops6h 30m
Deal found 10/8![Southwest logo]()
$138
Direct Southwest flights from USA to SeattleExplore non-stop Southwest flight options from USA to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 12, 2026.
Explore non-stop Southwest flight options from USA to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 12, 2026.
This Southwest deal was found by Cheapflights users on 10/10. 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 12/86:05 pm -
Nonstop3h 05m
Fri 12/117:55 am -
Nonstop2h 45m
Deal found 10/10![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:05 am -
Nonstop3h 05m
Sat 10/3111:15 am -
Nonstop2h 50m
Deal found 10/8![Southwest logo]()
$169
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:45 pm -
Nonstop3h 10m
Fri 12/117:55 am -
Nonstop2h 45m
Deal found 10/8![Southwest logo]()
$170
Last-minute Southwest flights from USA to SeattleDiscover last-minute Southwest flight deals from USA to Seattle. Data last updated October 12, 2026 and is based on user searches.
Discover last-minute Southwest flight deals from USA to Seattle. Data last updated October 12, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:55 pm -
1 stop5h 10m
Wed 11/47:00 am -
Nonstop2h 40m
Deal found 10/7![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:45 am -
1 stop5h 25m
Thu 11/56:30 am -
1 stop4h 10m
Deal found 10/8![Southwest logo]()
$128
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:45 pm -
1 stop6h 15m
Sun 11/16:30 am -
1 stop4h 10m
Deal found 10/8![Southwest logo]()
$132
One-way Southwest flights to SeattleSearch for one-way Southwest flight options to Seattle. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
Search for one-way Southwest flight options to Seattle. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:40 am -
1 stop4h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$71
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:55 pm -
1 stop7h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$76
This Southwest deal was found by Cheapflights users on 10/10. 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 11/96:00 pm -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Southwest logo]()
$79
Flights to Seattle with Southwest at a glance
Find detailed information about Southwest flights from USA to Seattle. Explore the options provided by Southwest to plan your journey from USA to Seattle. Data last updated October 12, 2026.
Cheapflights Insights
Find cheap Southwest flights to Seattle
US0-SEA
SAN-SEA
LAX-SEA
How long is the flight to Seattle with Southwest?
On average, Southwest flights from the United States to Seattle take 4 hours 37 minutes. Flights to Seattle from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Southwest weekly flight availability to Seattle
The most flights to Seattle operated by Southwest are scheduled on a Monday (25 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (22 on average).
When is the best time to book a flight to Seattle with Southwest?
The best time to book a flight to Seattle with Southwest is 49 days before departure. On average, fares are higher if you book on the same day as departure.
When is the cheapest time to fly to Seattle with Southwest?
Users looking for the cheapest Southwest fares to Seattle should consider flying on Tuesday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, when prices are usually at their highest.
FAQs about flights to Seattle with Southwest
Reviews of Southwest
See what Cheapflights users have to say about their Southwest experience.
Overview
Reviews
Southwest
4,221 reviews
Overview
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Recent reviews
8.0
|Oct 2026I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
10.0
|Sep 2026Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.
4.0
|Sep 2026It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
10.0
|Sep 2026I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
10.0
|Aug 2026great
1 out of 1407
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