SEA
Major hub airport · United States
Seattle–Tacoma International Airport
Seattle, United States · #33 world#12 of 114 in country
SEAIATA code
KSEAICAO code
52.7Mpassengers in 2025
3,627 mlongest of 3 runways
132 melevation · 433 ft
1944opened
Seattle–Tacoma International Airport (SEA/KSEA) is an airport in the United States serving Seattle.
It handled 52,715,181 passengers in 2025, making it number 33 in our world ranking and number 12 of 114 ranked airports in the United States.
It has 3 runways, the longest 3,627 m, at an elevation of 132 m.
3 airlines use it as a hub, including Delta Air Lines, Alaska Airlines and Horizon Air.
Passengers per year
2011–202532.8M33.2M34.8M37.5M42.3M45.7M46.9M49.8M51.8M36.2M46M50.9M52.6M52.7M
2011’112012’122013’132014’142015’152016’162017’172018’182019’192021’212022’222023’232024’242025’25
Identification
- IATA
- SEA
- ICAO
- KSEA
- Wikidata
- Q14295
Location
- Country
- United States
- City served
- Seattle
- Located in
- SeaTac
- Coordinates
- 47.4489, -122.3094
- Elevation
- 132 m (433 ft)
Organisation
- Type
- international airport, airport
- Opened
- 1944-01-01
- Operator
- Port of Seattle
- Named after
- Seattle, Tacoma
Runways
- 16C/34C
- 2,873 m · 9,426 ftconcrete
- 16R/34L
- 2,591 m · 8,501 ftconcrete
- 16L/34R
- 3,627 m · 11,900 ftconcrete
Hub for 3 airlines
DLDelta Air LinesASAlaska AirlinesQXHorizon Air