Southwest Airlines Terminal at Seattle-Tacoma International Airport (SEA)
Seattle-Tacoma International Airport has only one main terminal with four concourses: A, B, C, and D, of which Southwest operates from Concourse B. The Seattle Airport Southwest Airlines terminal is directly connected to the central terminal area, where check-in and security are located. The airline offers several nonstop domestic routes from Seattle, with easy connections to major US destinations, including California, Arizona, Nevada, Colorado, Illinois, Missouri, and Tennessee.
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Where is the Southwest Airlines Terminal at SeaTac?
Southwest Airlines operates from B gates (Concourse B) at SeaTac main terminal. This concourse is connected to the main terminal complex by the SEA Underground Train Loop.
Seattle Airport Departure Terminal for Southwest Airlines
Southwest Airlines departures from Seattle Airport are handled in the main terminal hall.
- The SeaTac Southwest Terminal check-in counters are centrally located, making it easy to drop off bags and print boarding passes.
- Online and mobile check-in via the Southwest app allows to complete check-in 24 hours before reaching the airport.
- The terminal features 6 security checkpoints, and checkpoints 2 and 3 are closest to Southwest check-in counters. However, passengers can access any of the other checkpoints.
- TSA PreCheck lanes, CLEAR, and SEA Spot Saver are also available for eligible travelers, helping reduce SEA security wait times during peak hours.
- After passing through the security checkpoints, move to the boarding gates. Concourse B features 17 gates, and Southwest typically uses gates B1 through B15.
Note: New automated screening lanes have been added to several checkpoints to speed up the TSA process.
Southwest Airlines Arrivals Terminal at Seattle Airport
The Seattle Airport Southwest Terminal arrival hall is located on the lower level. Upon arrival at SEA,
- Follow signs to the baggage claim level.
- Southwest mainly uses the 15 and 16 carousel numbers for baggage delivery.
- The Southwest Airlines Baggage Service Office is located near the carousels to assist with delayed or lost luggage concerns.
- Access the SEA ground transportation services near the exit door.
Seattle Airport Terminal Map Southwest Airlines
All the key locations, including the ticketing and check-in counters, security checkpoints, baggage claim belts, boarding gates, and other areas, are clearly marked on the SEA map for easy navigation.
Southwest Airlines Seattle Lounge and Amenities
While Southwest does not have its own private lounge at this airport, passengers have access to several SEA lounge options.
Lounge Options
- The American Express Centurion Lounge (Central Terminal on the mezzanine level)
- The Club SEA (Concourse A, near Gate A12 and the South Satellite, near Gate S9)
- USO Center (Mezzanine level)
Other Amenities
- Rel’Lish Burger Lounge
- LouLou Market and Bar
- Quick Service
- Planewear
- Hudson
- Pet Relief Area
- Children’s Play Area
- Charging Stations
- Free Wi-Fi
- Curbside Check-in
- Baggage Services
- Family and Relax Area
- SEA Spot Saver
The SeaTac Airport Southwest Airlines terminal (Concourse B) provides multiple check-in options, reliable ground transportation, and easy access to the parking area and other services. Passengers can check the flight status and delay information either on the SEA website or the FlySea app.
Frequently Asked Question (FAQs)
Southwest operates from the Main Terminal at SeaTac Airport, specifically using Concourse B.
The Southwest Airlines’ check-in counters are located on the Ticketing Level of the Main Terminal.
Southwest generally uses gates B1 through B15.
No, Southwest does not have its own lounge, but eligible passengers can access The Club at SEA or The American Express Centurion Lounge.
The SeaTac Southwest Airlines terminal baggage claim is located on the lower level of the Main Terminal.
Yes, curbside check-in counters are available at SEA Airport, but use of indoor kiosks or the mobile app is recommended for the fastest service.
The concourse is accessible via the SEA Underground Train Loop after security.
Yes, TSA PreCheck is available for eligible travellers.
Yes, some late-night and early-morning flights are available.