Seattle Airport Informational Guide to Seattle–Tacoma Airport - Seatac (SEA) - NON OFFICIAL

Seattle Airport Terminal - SEATAC Terminal

Seattle Airport Terminal, Main Terminal, operates both international and domestic flights. 

The Main Terminal is divided into several parts:

4 concourses, that are physically connected to the terminal, and two satellite terminals: North Terminal (“N” gates) and South Terminal (“S” gates).

Each Satellite Terminal is linked with the Main Terminal Building via a Train Loop (North Train Loop, South Train Loop). The train loop is an underground people mover system.

Main Terminal Building

The Main Terminal Building in SEA Airport is the core of the facility and the central union of its concourses.

This is the post-security concourse level, passengers can both access to the baggage claim area and to the concourses once cleared the security checkpoints.

There are plenty of services available; various shops, restaurants and cafés are located in the main area.

There are also a children’s play area, a pet relief area, vending machines and ATMs.

Levels

The Main Terminal Building in SEA Airport consists of five levels: 

Level 2 

STS Platform. 

Level 3 

Baggage Claim and Arrivals area. 

Level 4 

Skybridge.

Level 5 

Check-in and access to Concourses. 

Level 6 

Mezzanine level, where there are several services available. 

Concourses

The Main Terminal has 4 concourses named A, B, C and D and are located in the level 5 of the Main Terminal. 

Concourse A

It has gates A1 to A21.

Find in this concourse connection to B, S and D gates with connection to C and N gates by the train loop at the lower levels (opposite gate 4).

Close to gate A1, on opposite sides, there is access to B gates and further services such as children’s play area and pet relief areas.

Services: ATMs, Foreign Currency Exchange, United Terminal Customer Service, Shops, Restaurants.

Concourse B

It has gates B1 to B21. 

It is connected to C & N gates and transit to A, S and D gates. At the exit to the main terminal, there is a link to Concourse A and to the Central Terminal Building.

From this concourse it is possible to access to the baggage claim area.

There are services available in addition to shops and restaurants, the concourse has ATMs machines, a children’s play area, and Delta airlines Customer Service (including VIP lounges).

There is a train loop (underground people mover) that connects the 3 concourses with the satellites.

Concourse C

It has gates C2 to C3 and C10 to C20.

From this Concourse, passengers can connect to D and N gates, and to A, B and S gates from Gate C14.

Services available: ATMs, Service Center, Restaurants, Shops, Shoe Shine, Vending Machines.

Concourse D

It has gates from D1 to D11 and D20 to D26. 

There is connection to C and N gates and to the shuttle to A gates opposite gate D3, counting also with connections to both B and S gates.

Services and amenities are Alaska Airlines Board Room, Alaska Airlines Customer, Service Center, ATMs, Restaurants, Shops, Shoe Shine service, Vending Machines.

satellites

North Satellite Terminal

The North Satellite Terminal has underwent renovation projects. They are working on it and it is thought to be complete by 2021. The project is doubling dining and retail space as well as increasing the number of gates to 20. 

It is located between Concourses C and D. It has a total of 13 gates N1 - N16.

It is mainly served by Alaska and United airlines.

Down one level, to gates N9 and N10, you can get to the Main Terminal Building, to the baggage claim area and other gates.

Services offered: ATMs, Massage Bar, Service, Vending Machines, Alaska Airlines Board Room, Alaska Airlines Customer.

South Satellite Terminal

It is located between Concourses A and B. It has a total of 12 boarding gates.

Most of the international flights are handled in the South Terminal, except those from airports with customer preclearance. In general, it takes between 30 minutes or 1 hour to clear U.S. Customs.

Close to gate S9, down one level, you can transfer to the main terminal, baggage claim area and further gates.

Services offered: ATMs, Foreign Currency Exchange, British Airways Terraces Lounge, Delta Sky Club, The Club at Sea, Vending Machines.

A Shuttle train service links both sides of the terminal with their respective satellite terminals: Concourses A + B + South Terminal. Concourses C + D + North Terminal.

Inter-terminal transportation

You can move freely between Concourses A, B, C and D since they are connected at post-security area.

Both satellites, North and South gates, are linked to the main terminal by underground loop trains, which stand for the underground people mover system.

The trip takes between 10 to 15 minutes. Opening hours: 24/7.

If you wish to connect between the terminal and the gates, the STS train is available between North and South Stations.

On the other hand, the shuttle train is really useful to avoid unnecessary walks between the main terminal, the concourses and satellite gates.

See below the inter-terminal transportation options regarding rail and shuttle train:

- South Train Loop: It follows the route between the main terminal South Station and B & S gates.

- North Train Loop: It follows the route between the main terminal North Station and C & N gates.

- The Shuttle train between North and South Terminal Stations connecting N & S gates.

Services

- ATMs
- Currency exchange
- Children’s play area
- Mother’s room
- Pet relief area
- Vending machines
- Food, drink and retail concessions

See more Services here

lounges

The Club at SEA: Concourse A. Open from 5:00am to 12:00am. Services: snacks, Wi-Fi, newspapers and magazines, TV, Telephones, among others. 

Passes start at 39$ per person. 

The Club at SEA: South Satellite. Open from 5:30 am to 5:30pm. Services: snacks, drinks, Wi-Fi, newspapers and magazines, among other.s 

Passes start at 39$ per person. 

Delta Air Lines Delta Sky Club: Concourse A. Open from 4:45am to 10:30pm. Services: snacks, showers, drinks, Wi-Fi, flight monitors, among others. 

United Airlines United Club: Concourse A. Open from 4:30am to 12:15pm. Services: snacks, Wi-Fi, newspapers and magazines, among others. 

The Centurion Lounge (Temporarily Closed): Concourse B. Services: snacks, showers, Wi-Fi, drinks, among others. 

Alaska Airlines Alaska Lounge: Concourse C. Open from 5:00am to 12:00am. Services: snacks, drinks, Wi-Fi, newspapers and magazines, among others. 

Alaska Airlines Alaska Lounge: Concourse D. Open from 4:30am to 8:00pm. Services: snacks, Wi-Fi, newspapers, flight monitors, among others. 

USO Lounge: Main Terminal. Open 24 hours. Services: snacks, showers, children’s area, Wi-Fi, TV, among others. 

Alaska Airlines Alaska Lounge: North Satellite. Open from 5:00am to 11:00pm. Services: snacks, drinks, WI-Fi, liquors, Tv, Internet Terminals, among others. 

Delta Air Lines Delta Sky Club (Temporarily Closed): South Satellite. Services: snacks, drinks, showers, Wi-Fi, among others. 

British Airways Terraces Lounge: South satellite. Open from first departure until last departure of the day. Services: snacks, drinks, showers, Wi-Fi, spirits, liquour, among others. 

British Airways First Lounge: South Satellite. Open from First departure until last departure of the day. Services: snacks, showers, Wi-Fi, flights monitors, among others. 

Purchase your lounge pass to Seattle Airport lounges