SEA Airport Code, Seattle–Tacoma International Airport
SEA is the IATA airport code for Seattle–Tacoma International Airport, the main international gateway for Seattle, United States. Pilots and air traffic control use its ICAO code, KSEA.
What airport is SEA?
SEA is the IATA airport code for Seattle–Tacoma International Airport, in Seattle, United States. The same airport has the ICAO code KSEA.
It is a major hub, ranked number 67 by scheduled connections in the open dataset. Its ICAO code KSEA begins with K, the prefix ICAO assigns to the contiguous United States.
| IATA airport code | SEA |
|---|---|
| ICAO airport code | KSEA |
| Airport | Seattle–Tacoma International Airport |
| City | Seattle |
| Country | United States |
| Main airlines | AS, DL, WN |
| Runways | 3 |
Airport data comes from OurAirports (public domain), regenerated here on . How we build this · Data and sources.
Where is SEA airport located?
Seattle–Tacoma International Airport (SEA) is in Seattle, United States, at coordinates 47.44794, -122.31028.
It lies in the northern and western hemispheres, at 47.45° N, 122.31° W. It is close to sea level at 433 ft (132 m), typical of a coastal or low-lying airport.
Runways at SEA
It has 3 runways. The longest is 11,901 ft (3.63 km), designated 16L/34R.
Which airlines fly to SEA?
The open route dataset lists AS (Alaska Airlines), DL (Delta Air Lines), WN (Southwest Airlines), AA (American Airlines), UA (United Airlines), US (US Airways) as operating carriers on nonstop routes touching Seattle–Tacoma International Airport.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Where the SEA code comes from
SEA is SEAttle, though the airport's full name is Seattle-Tacoma International, a 1940s compromise for Tacoma's funding contribution. The Sea-Tac nickname preserves the deal; the code sided with Seattle. SEA is the primary hub of Alaska Airlines and Delta's transpacific gateway.
Curious why codes look the way they do? Read how airport codes work.
Frequently asked questions
What is the IATA code for Seattle–Tacoma International Airport?
The IATA code for Seattle–Tacoma International Airport in Seattle is SEA. It is the three-letter code on tickets, baggage tags and departure boards.
What is the 3-letter code for Seattle?
The 3-letter IATA code for Seattle–Tacoma International Airport in Seattle is SEA.
What is the ICAO code for Seattle–Tacoma International Airport?
The ICAO code for Seattle–Tacoma International Airport is KSEA. Pilots and air traffic control use it, while airlines and booking systems use the IATA code SEA.
What is the difference between SEA and KSEA?
SEA is the IATA code used for tickets and baggage. KSEA is the ICAO code used by pilots and air traffic control for the same airport, Seattle–Tacoma International Airport.
Read more about Seattle–Tacoma International Airport on Wikipedia →
Nearby and related airports
Other airports in Seattle and United States and the wider region:
Popular routes from SEA
Distance and typical flight time from Seattle–Tacoma International Airport to other airports it connects with:
All 2 Seattle airports · All airports in United States · Busiest airports worldwide · SEA as JSON