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Southwest Flights to Seattle

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Book Southwest Flights to Seattle

Southwest operates nonstop flights to Seattle-Tacoma International Airport from cities like Las Vegas, Denver, Phoenix, Oakland, San Diego, Dallas Love Field, and Houston Hobby. SEA is the largest airport in the Pacific Northwest, handling over 50 million passengers a year. Southwest's Seattle operation is concentrated on West Coast connections, with many routes running under 3 hours.

Southwest Airlines Flight Details and Travel Information for Flights to Seattle

US Departure Airports for Southwest Airlines Flights to Seattle

<p><span style="font-size:11pt; font-variant:normal; white-space:pre-wrap"><span style="font-family:Lexend,sans-serif"><span style="color:#000000"><span style="font-weight:700"><span style="font-style:normal"><span style="text-decoration:none">Denver International Airport (DEN)</span></span></span></span></span></span></p>

Denver International Airport (DEN)

Denver to Seattle runs about 3 hours nonstop. Popular year-round with daily Southwest flights.

<p><span style="font-size:11pt; font-variant:normal; white-space:pre-wrap"><span style="font-family:Lexend,sans-serif"><span style="color:#000000"><span style="font-weight:700"><span style="font-style:normal"><span style="text-decoration:none">Phoenix Sky Harbor International Airport (PHX)</span></span></span></span></span></span></p>

Phoenix Sky Harbor International Airport (PHX)

Phoenix to Seattle takes about 3 hours 30 minutes nonstop. Especially popular in summer when Phoenix residents head to cooler weather.

<p><span style="font-size:11pt; font-variant:normal; white-space:pre-wrap"><span style="font-family:Lexend,sans-serif"><span style="color:#000000"><span style="font-weight:700"><span style="font-style:normal"><span style="text-decoration:none">Oakland International Airport (OAK)</span></span></span></span></span></span></p>

Oakland International Airport (OAK)

Oakland to Seattle is about 2 hours nonstop. One of the most frequent Southwest routes on the West Coast corridor.

<p><span style="font-size:11pt; font-variant:normal; white-space:pre-wrap"><span style="font-family:Lexend,sans-serif"><span style="color:#000000"><span style="font-weight:700"><span style="font-style:normal"><span style="text-decoration:none">San Diego International Airport (SAN)</span></span></span></span></span></span></p>

San Diego International Airport (SAN)

San Diego to Seattle runs about 2 hours 50 minutes nonstop. New daily service launched from SAN in March 2026.

<p><span style="font-size:11pt; font-variant:normal; white-space:pre-wrap"><span style="font-family:Lexend,sans-serif"><span style="color:#000000"><span style="font-weight:700"><span style="font-style:normal"><span style="text-decoration:none">Dallas Love Field (DAL)</span></span></span></span></span></span></p>

Dallas Love Field (DAL)

Dallas to Seattle takes around 3 hours 50 minutes nonstop. Daily service connects the Southwest heartland.

<p><span style="font-size:11pt; font-variant:normal; white-space:pre-wrap"><span style="font-family:Lexend,sans-serif"><span style="color:#000000"><span style="font-weight:700"><span style="font-style:normal"><span style="text-decoration:none">William P. Hobby Airport (HOU)</span></span></span></span></span></span></p>

William P. Hobby Airport (HOU)

Houston to Seattle runs about 4 hours 20 minutes nonstop. Longer route with daily availability.

Seattle Airport Arrival Guide for Southwest Airlines Flights from the USA

  • Terminal: Main terminal, Southwest typically uses the North Satellite or nearby gates

  • Transport Options: Link Light Rail to downtown, rideshare, taxis, rental cars

  • Baggage Claim: Located on the arrivals level of the main terminal

  • Distance to Downtown Seattle: About 14 miles, 25 to 40 minutes by car or 40 minutes by Link Light Rail

  • Key Areas: Pike Place Market (30 min), Capitol Hill (35 min), Bellevue (30 min)


Book Southwest Airlines Flights to Seattle

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Best Time to Book Southwest Airlines Flights to Seattle

1

Cheapest Months to Travel

January and February offer the lowest fares, as Seattle's rainy season keeps tourism lower. November after Thanksgiving is another good window.

2

Peak Travel Seasons to Avoid

June through September is peak season with dry warm weather and long days. Fares jump 30% to 50% compared to winter.

3

Best Time to Book

4 to 6 weeks for winter travel. Summer flights benefit from booking 2 to 3 months ahead.

4

Midweek Advantage

Tuesday and Wednesday flights typically save $30 to $50 versus weekend travel.

5

Time Difference to Keep in Mind

Seattle runs on Pacific Time (PT). Same as Portland and LA. 3 hours behind New York, 2 behind Chicago, 1 behind Denver.

What Cabin Classes Are Available on Southwest Airlines Flights to Seattle?

Behind Extra Legroom, front-mid section. Standard pitch, better position. Comes with Choice fares.

Main cabin at 31 inches. USB power on newer aircraft, free WiFi for Rapid Rewards members.

Frequently Asked Questions 

Does Southwest fly nonstop to Seattle?

What's the cheapest month to fly to Seattle?

What seats are available on Southwest to Seattle?

How long is the Southwest flight to Seattle?

Does Seattle have transit from the airport?

How do I find cheap flights to Seattle on Southwest?

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