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201

Routes out

90

Destinations

KSEA

ICAO

433 ft

Elevation

TravelerPulse profile

The Pacific Northwest's primary gateway to the world.

Opened

1944

Location

Seattle, United States

Seattle–Tacoma International Airport, commonly known as Sea-Tac, is the primary commercial airport serving the Seattle–Tacoma metropolitan area in Washington State. It is one of the busiest airports in the United States, consistently ranking among the top 10 by passenger volume, handling over 50 million passengers annually in peak pre-pandemic years. Opened in 1944 and operated by the Port of Seattle, Sea-Tac serves as a major hub for Alaska Airlines and a significant gateway for Delta Air Lines. Its location on the Pacific Rim makes it an important transpacific hub connecting North America to Asia and beyond. The airport has undergone extensive modernization and expansion projects in recent decades, including the opening of the International Arrivals Facility in 2020, which significantly improved international passenger processing capacity and amenities.

Terminals

Sea-Tac has one main terminal with a central building and four concourses (A, B, C, and D/S), connected by an automated underground people mover system.

Getting to & from

The airport is connected to downtown Seattle and the broader region via the Link Light Rail (1 Line), operated by Sound Transit, with a station directly beneath the terminal, as well as shuttle services, taxis, and rideshares.

Airlines here

Alaska Airlines uses Sea-Tac as its primary hub, while Delta Air Lines operates a significant hub here, with additional service from United, American, Southwest, and numerous international carriers.

Notable facts

›Sea-Tac is the largest airport in the Pacific Northwest and one of the top 10 busiest in the United States.
›Alaska Airlines was founded in the region and maintains its largest hub and headquarters presence at Sea-Tac.
›The International Arrivals Facility, opened in 2020, cost approximately $968 million and doubled international processing capacity.
›The airport sits at an elevation of 433 feet above sea level on a plateau between Puget Sound and Lake Washington.
›Sea-Tac is managed and operated by the Port of Seattle, a public agency.

Official website Wikipedia

This profile is provided for general information only. Details may be inaccurate or outdated — always verify with the airport's official website before acting on them.

Featured article · TravelerPulse Library

Seattle Tacoma Airport - SEA

Seattle-Tacoma International Airport (SEA), commonly known as Seattle International Airport, is a major U.S. hub located 14 miles south of downtown Seattle. Serving 120+ destinations, SEA is home to Alaska Airlines and offers top dining, shopping, and efficient international connections.

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Route map (90 destinations)

Leaflet © OpenStreetMap © CARTO

Airlines serving this airport

Routes

SEA → BOSAA · 737

SEA → BURAA · 737

SEA → CLTAA · 320 321 319

SEA → DENAA · 737

SEA → DFWAA · 738 757

SEA → EWRAA · 737

SEA → JFKAA · 738

SEA → KTNAA · 737

SEA → LAXAA · 737

SEA → LGBAA · CR7

SEA → LHRAA · 777

SEA → MCIAA · 737

SEA → MCOAA · 737

SEA → MIAAA · 757

SEA → OAKAA · 737

SEA → ONTAA · 737

SEA → ORDAA · 738

SEA → PEKAA · 787

SEA → PHLAA · 320 321

SEA → PHXAA · 321 320

SEA → SANAA · 737

SEA → SFOAA · 737

SEA → SJCAA · 737

SEA → SMFAA · 737

SEA → SNAAA · 737

SEA → STLAA · 737

SEA → YVRAA · DH4

SEA → YVRAC · DH3

SEA → YYZAC · E90

SEA → ATLAF · 739 76W 757

SEA → CDGAF · 332

SEA → HNLAF · 753

SEA → LHRAF · 76W

SEA → ATLAM · 739 76W 757

SEA → ALWAS · DH4

SEA → ANCAS · 73J 73H 734 739 73Q 73G

SEA → ATLAS · 73J 73H

SEA → AUSAS · 739 73H

SEA → BILAS · DH4

SEA → BLIAS · DH4

SEA → BOIAS · DH4

SEA → BOSAS · 73H 73J

SEA → BURAS · 73H 73G

SEA → BZNAS · DH4

SEA → COSAS · CR7

SEA → DCAAS · 73H

SEA → DENAS · 73G 73H 739

SEA → DFWAS · 73J 739

SEA → EATAS · DH4

SEA → EUGAS · DH4

SEA → EWRAS · 73J

SEA → FAIAS · 73G 73J 739 73H

SEA → FATAS · CR7

SEA → FCAAS · DH4

SEA → FLLAS · 73H

SEA → GEGAS · 734

SEA → GTFAS · DH4

SEA → HNLAS · 73H

SEA → IAHAS · 73J

SEA → JFKAS · 738

Aircraft operating here

73H39 routes Boeing 737-90027 routes De Havilland Canada DHC-8-400 Dash 8Q26 routes 73J24 routes Airbus A32021 routes 73W20 routes Boeing 737-80018 routes Boeing 73717 routes Boeing 737-70016 routes Boeing 737-40014 routes 76W13 routes Boeing 75712 routes

Official airport contacts

Port of Seattle

General emailSEAcustomercare@portseattle.org

Customer service phone206-787-5388

Official website Contact page

Official contacts sourced from the airport authority. Verified 2026-08-11.

Hotels near SEA

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Where

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City & Place Guide

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Passport, Visa & Immigration

Flying internationally via SEA? Check entry, transit and customs requirements for United States from official government sources.

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Encyclopaedia

Seattle–Tacoma International Airport is the primary international airport serving Seattle and its surrounding metropolitan area in the U.S. state of Washington. It is in the city of SeaTac, which was named after the airport's nickname Sea–Tac, approximately 14 miles (23 km) south of downtown Seattle and 18 miles (29 km) north-northeast of downtown Tacoma. The airport is the busiest in the Pacific Northwest region of North America and is owned by the Port of Seattle.

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