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Seattle Tacoma SEA Airport Terminal Map

Main Terminal / Concourses at Seattle Tacoma SEA Airport

Sea-Tac Airport terminal layout, check-in information, Getting Around, International Arrivals, Skywest operations, and Terminal details:

The passenger terminal complex at Seattle/Tacoma’s Sea-Tac Airport is shaped like a bow, consisting of a main terminal with North & South train stations, surrounded by the Central Terminal with access to Concourses. 
The Main Terminal's North & South Stations are to the right & left of the complex, connecting both ends by train.  The South Satellite (S gates) serves all international arrivals (except those with U.S. preclearance).

Check-in Information: 
(a) New check-in kiosks from select Airlines to print boarding passes are available for passengers without luggage, Those with luggage on Alaska Airlines can get their boarding pass and then take their luggage right to their airline's baggage drop area. Note that Alaska Airlines offers self-bag-tagging option - enabling customers to print & attach baggage tags at self-service kiosks in the lobby, then show I.D. and drop bag off with airline employee for screening & loading onto aircraft.
(b) Holders of the Global Entry card can reduce average wait time by 70 percent.
(d) Self-Service Automated Passport Control: The 14 new kiosks cut waiting time through customs in half
(c) The light rail station has a new flight information display.

Getting Around at Sea-Tac International:
  Concourses A, B, C & D are connected at post-security, enabling passengers to freely move around without having to leave the secured area. The satellites (N & S gates) are linked to the main terminal by continuously running underground loop trains. If your flight will depart from one of the satellite terminals, add an extra 10-15 minutes to your boarding schedule.
Connecting  between terminal and between gates, you can take the STS train to/from the Main Terminal's North Station to/from its South Station. To avoid a lengthy walk from the Main Terminal to the Concourses and satellite gates, use the shuttle train:
1, the South Train Loop between the main terminal South station and the B & S Gates;
2. the North Train Loop between the main terminal North station and the C and N gates; and
3. the shuttle train between North & South Terminal Stations with connections to N & S Gates:
(a) Between N gates & S gates: take the train from South or North Satellite to the Main Terminal, then cross over and take the train on the opposite side, which is the shuttle that runs at post-security between the North & South stations.
(b) Between South Satellite & Concourse C: take first the train from the South Satellite to the Main Terminal, cross over to the shuttle to the North Transit Station, from there cross again to the train at the opposite side to take you to the end of Concourse C.

International arrivals:  Passengers arrive at the South Satellite (whether changing planes or ending their trip at Sea-Tac) and then go through immigration clearance, pick up checked luggage, continue to customs (taking 30-60 minutes), and (from here on procedures differ):
(a) If you end your trip at SeaTac, put your luggage on the high-speed conveyor which will deliver it to the Baggage Claim. Proceed to the Main Terminal to pick up your bags at the Baggage Claim carousel 1. (Ground Transportation Information Booth is on level 3 of the parking garage.)
(b) If you need to transfer to a domestic flight at Sea-Tac International, you must re-check-in your bags and go through TSA security screening prior to proceeding to your connecting flight. If you have duty-free liquid items, put them in our checked luggage to prevent confiscation at the security checkpoint.

Currently SkyWest Airlines operates as: United Express, Delta Connection or Alaska Airlines; their gate locations are:
United Express at NorthTerminal, baggage claims 15,16; 
Delta Connection at South Satellite, baggage claims 3, 4;  and
Alaska at North Satellite & Concourses C & D, baggage claims 12-15.

TERMINAL DETAILS:

The bow-shaped Passenger Terminal at Sea-Tac Airport incorporates Main & Central terminals on different levels.
The Main Terminal consists of a lower level baggage claim level, a ticketing level and a Mezzanine.
The Central Terminal offers direct access to Concourses B, C, D & A, and provides transit train stations in all of its Concourses and North & South Satellites: separate underground trains run (a) between the North Satellite & Concourses /gates C and D;  (b) between Concourses /gates A & D; and between Concourses /gates A & B & Satellite S.

The Main Terminal comprises pre-security check-in / ticketing, arrivals & mezzanine levels.
At check-in level, ticket counters 1 - 6 correspond to the skybridge numbers leading to level 4 of the parking garage, while skybridge 6 also leads to the pedestrian walkway getting to the Link Light Rail Station and to the public buses.  Some food & drink, shops & services are available behind the ticket counters, as well as four security checks near ticket counters (TC) - TC-1 to A & S gates;  TC-2 to B  C gates; TC-3 to DC & D gates; TC-4 to D & N gates - while all four security checks also have access to all gates. The Arrivals Hall atrium area is located near ticket counter 1 and skybridge 1.
The baggage claim level with even-numbered doors 4 - 26 houses  baggage carousels 1 - 16. The International Arrivals waiting area is close to carousel 1.  Outside of door 02 are public transit buses, shuttles to rental car facilities, outside of door 00 are schedule airporters, Cruise line  & charter buses.  Near doors 00 & 26 are also Pet Potty spots outside.
The mezzanine level 
houses the USO Sea-Tac Center, open 24/7, with full service, including showers (tel. 206-433-5438 or visit usopsa.org.

The Central Terminal
represents the post-security Concourse level, and has direct access to the baggage claim area on either side of the center housing a number of dining & shopping options, a pet relief area and access to all concourses/gates:
Concourse A is presently served by Air Canada, Sun Country, US Airways & United  /United Express - at gates A1 to A14. Opposite gate 4, two levels down, is transit to B, S & D gates, with connection to C & N gates.
Travelex foreign exchange is near the security check. Across from the food court are exits to the main terminal, and past gate A1 leads to B gates.
Concourse B
is presently served by Frontier, Southwest & Virgin America - at gates B3 to B15.  At gate 11, two levels down, is transit to A, S & D gate and  C & N gate connections.
An ATM cash machine is next to gate B3, a children’s play area, is next to the exit to the main terminal, with connections to both Concourse A and Central Terminal in the same area. 
Concourse C is presently served by Alaska Airlines only (& in Concourse D & North Satellite) - at  gates C2A through C2M & C3-C20. Near gate C14, go down to transit to D & N gates, with connections to A, B & S gates.
An ATM cash machine is opposite gate 8, Horizon Air Customer Service are near gate C3, and the Alaska Board Room is in the connector to D & N gates. Near ‘InMotion DVD Rentals’ you can connect to the Central Terminal. The Regus Business Center is at gate C3.
Concourse D is presently served by Alaska, American & JetBlue  - at gates D1 to D11.
Opposite gate D3, down 2 levels, is transit to C & N gates, & shuttle to A gates, with connections to B & S gates. Opposite gate D3 is the exit to the main terminal; past gate D1 leads to the Baggage Claim of the Central Terminal, and at opposite side to the C gates. Opposite from the gate 3 area is a separate area which includes elevator, escalator & stairway to the North Satellite; two levels down is the transit to C & N gates, the shuttle to A gates, with connections to B & S gates.
The North Satellite is presently served by Alaska (and in Concouses C & D) & United airlines at gates N1 to N16.
Near gate N10, down one level, is transit to Main Terminal, baggge claim & all other gates.  The United Club in on the transit level. A cash machine is near gate N2; United Airlines Customer Service is near gate N16. Escalators, elevators & stairways lead to the main terminal and to the train station.
The South Satellite is presently served by ANA, Asiana, Avianca, British, Condor, Delta, Emirates, EVA, Hainan, Hawaiian, Icelandair, Lufthansa & Korean airlines - at gates S1 to S16.  Between gates S9 & S10, down one level, is transit to main terminal, baggage claim & other gates.  All international arrivals, except those from airports with customs pre-clearances, arrive at South Satellite.  A Travelex foreign exchange, an ATM machine & a duty-free shop are in the center, and a connector leads to the Customs area with the elevator, escalator & stairway leading to Main Terminal & train station. 

Airline & Airport Lounges:
Near Gate S9 is the Delta Club, and British Airways Terrace Lounge; 
Club International adjacent to Gate S9, and Club Cascade across from gate A11 are accessible to all passengers at a fee of $50  (call Club International at 206-787-4040 of Club Cascade at 206-787-7970 for more information).

Seattle Tacoma SEA Airport

Concourse A Concourse B
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Walk Route

Go towards Gate A1 to exit Concourse into Central Terminal and turn left into Concourse B
Walk Time: 7 min

Shuttle Route

Exit Concourse A. Walk to Main Terminal South Station, walk through the station and board train to Concourse B. Pass Satellite South. Exit train at Concourse B and enter Concourse B.
Shuttle Time: 3-13 minutes min

Through Security? No

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