Alaska Airlines Terminal at Seattle-Tacoma International Airport

Alaska Airlines operates through the Main Terminal at Seattle-Tacoma International Airport. It uses concourses C and D for flight departures, while international planes arrive at concourses A and S. The Alaska Airlines Seattle terminal has almost ten levels, but functions take place at two levels, consisting of baggage claim areas, ticketing counters, security checkpoints, and boarding gates. The check-in counters work from 3:30 a.m. to 12:05 a.m., and baggage hours remain between 4.30 a.m. to 1 a.m.  Additionally, it has three Alaska lounges at different concourses, C, D, and N.

What terminal is Alaska Airlines at SeaTac Airport?

Alaska Airlines utilizes the Main terminal at SEA Airport, conducting both domestic and international flights from here. Out of the 10 available levels, this airline uses levels 3 and 4 for arrivals and departures. The remaining levels provide amenities including a cruise lobby, train platforms, SEA Parking, an international corridor, a walkway, and more.

• Level 3: This is the arrival level where all Alaska passengers reach after disembarking to collect their bags. It also features the baggage service office, near the bag claim belt 14, and the CBP office near door 00. 
• Level 5: It is the departure level with all ticketing counters, TSA checkpoints, and concourses C and D with boarding gates.

Alaska Airlines Lounges Location at Seattle Airport

The Alaska Airlines SEA Terminal contains three individual lounges of this airline at different locations:

• Concourse C, on the mezzanine level next to Gate C-16. (Every day, 5 a.m. to 7 p.m.)
• Concourse D, just beyond Security Checkpoint 4 (Daily, 5 a.m. to 11 p.m.)
• North Satellite on the mezzanine level, above Gates N13-18 (Regularly 5 a.m. to 11 p.m.)

Seattle Airport Terminal Map Alaska Airlines

The official website of the airport features the SEA Terminal Map with an interactive feature of searching locations, according to the concourses and terminals.

SeaTac Alaska Airlines Arrivals

Domestic flights of Alaska Airlines arrive at Level 3 of the main terminal. While international flights take place at concourses A and S. Flyers can move to the baggage claim areas after disembarking the plane and completing their customs procedure at this level, using SEA ground transportation.

Alaska Airlines Departure Terminal at Seattle Airport

Level 5 supports Alaska Airlines departures at SEA Airport through the main terminal. It has the presence of all ticketing counters, security checkpoints, and boarding gates. 

• Arrive at level 5 and proceed to the check-in counters near door 29, or complete it through the self-service kiosk.
• Zones 6 and 7 feature the Skybridge level connecting to the parking garage operates from 5 a.m. to 10 a.m.
• After dropping bags, move to the TSA security checkpoints. 
• The airline assigns boarding gates on the same day of departure. So head to the gate number written on the pass. 
• The boarding process starts approximately 30 to 40 minutes before takeoff. 

NOTE: Alaska Airlines recommends flyers to arrive at least 2 to 3 hours prior to departure, especially when traveling with luggage. 

Alaska Airlines provides its services through the main satellite terminal at Seattle-Tacoma International Airport. It has several amenities, including family rooms, kids’ area, free wifi, Global Entry, power outlets at gates, TSA, and CLEAR facilities for speeding up the identification process.

Frequently Asked Question (FAQs)