---
title: "SEA — Seattle–Tacoma Airport, Seattle · Orbit"
description: "Seattle–Tacoma International Airport (SEA/KSEA) serves Seattle, United States. Opened 1944, 52.7 million passengers in 2025, 18 km from Seattle."
url: https://orbitflights.app/airports/sea
---

Seattle · United States · North America

# SEA — Seattle–Tacoma

Seattle–Tacoma International Airport serves Seattle, United States, 18 km from the city centre, and sits at 47.4°N, 122.3°W. This site carries 6 routes touching it, with the great circle distance for each.

**IATA**
SEA
the code on your bag tag

**ICAO**
KSEA
used by air traffic control

**Opened**
1944
per Wikidata

**Passengers**
52.7M
in 2025

## History & name

Opened in 1944, Seattle–Tacoma International Airport takes its name from the cities of Seattle and Tacoma in the United States. Operated by the Port of Seattle, it lies 18 km from Seattle, has 3 runways up to 3,627 m long and handled 52.7 million passengers in 2025.

Read more: [Wikipedia ↗](https://en.wikipedia.org/wiki/Seattle%E2%80%93Tacoma%5FInternational%5FAirport) · [Wikidata ↗](https://www.wikidata.org/wiki/Q14295)

## At a glance

**Full name**
Seattle–Tacoma International Airport

**Serves**
Seattle, United States

**City centre**
18 km from Seattle

**Opened**
1944

**Operator**
Port of Seattle

**Passengers**
52.7 million in 2025

**Runways**
3 runways, longest 3,627 m

**Elevation**
433 ft (132 m)

**Map**
[Open in Google Maps ↗](https://www.google.com/maps/search/?api=1&query=47.44790,-122.31030)

**Website**
[portseattle.org ↗](https://www.portseattle.org/sea-tac)

## Where it sits

47.4°N, 122.3°W puts SEA in the northern hemisphere, 5,276 km from the equator and 4,732 km from the North pole.

Of the 661 airports on this site it is the **88th** most northerly, which makes it the 574th most southerly.

## Straight through the middle

Straight down through the centre of the Earth comes out at 47.4°S, 57.7°E. The nearest airport on this site to that point is Roland Garros (RUN) in Réunion, still 2,960 km away — most of the planet's antipodes are ocean.

## What’s near it

The closest other airport on this site is **Victoria** (YYJ), 157 km away in a straight line. Nothing else on this site is within 100 km.

## Distances from SEA

Great circle distance and an estimated time in the air. The longest is Seoul, at 8,373 km.

| To                                                        |     | Distance | Estimated |
| --------------------------------------------------------- | --- | -------- | --------- |
| [Los Angeles](https://orbitflights.app/routes/lax-to-sea) | LAX | 1,537 km | 2h 25m    |
| [New York](https://orbitflights.app/routes/jfk-to-sea)    | JFK | 3,887 km | 5h 20m    |
| [Honolulu](https://orbitflights.app/routes/sea-to-hnl)    | HNL | 4,308 km | 5h 51m    |
| [London](https://orbitflights.app/routes/lhr-to-sea)      | LHR | 7,702 km | 10h 04m   |
| [Tokyo](https://orbitflights.app/routes/sea-to-hnd)       | HND | 7,711 km | 10h 05m   |
| [Seoul](https://orbitflights.app/routes/sea-to-icn)       | ICN | 8,373 km | 10h 54m   |

[Distance from SEA to any airport →](https://orbitflights.app/distance?from=SEA&to=ICN) [Map a trip from SEA →](https://orbitflights.app/tools/flight-route-map?r=SEA-ICN)

## Where these facts come from

The profile is looked up, not written from memory: type, runways, elevation and the official website from [OurAirports](https://ourairports.com/data/) (public domain); opening year, namesake, operator and passenger count from [Wikidata](https://www.wikidata.org/) (CC0); the city centre from [GeoNames](https://www.geonames.org/) (CC BY 4.0). Where a source has nothing, the line is left out. Distances, neighbours and the antipode are computed from the coordinates.

What you won’t find: terminal maps, airline lists, shops or live departures. Orbit is a logbook, not a flight tracker, and a page that guessed at those would be worse than one that leaves them out.

[Measure SEA to anywhere →](https://orbitflights.app/distance) [Flights to Seattle →](https://orbitflights.app/flights-to/seattle)

## Flown through SEA?

Orbit knows all 8,801 airports offline and works out the distance the moment you enter two codes.

[Download now](https://play.google.com/store/apps/details?id=com.qwertybit.orbit)

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Markdown copy of https://orbitflights.app/airports/sea for language models and agents. Site index: https://orbitflights.app/llms.txt