flights.net Airport · SEA
Seattle–Tacoma International Airport
- Terminals
- 1
- Elevation
- 433 ft
- Hub airlines
- 2
Seattle–Tacoma International Airport (SEA/KSEA) is the Pacific Northwest's primary airport and Alaska Airlines' home hub, with a growing Delta presence. It has 1 terminal and sits 433 ft above sea level in Seattle, United States.
Getting around Seattle–Tacoma International Airport
Public transit & taxi
- Train Link light rail — to downtown Seattle, ~40 min
About Seattle–Tacoma International Airport
Seattle–Tacoma International Airport — IATA SEA, ICAO KSEA — is the principal airport serving Seattle, Washington, in United States, and is one of the the United States hubs profiled across this guide. The airfield lies at 47.45° latitude and -122.31° longitude, 433 feet above mean sea level, and observes America/Los_Angeles local time. Arriving and departing passengers are handled across 1 passenger terminal.
Day-to-day operations at Seattle–Tacoma International Airport are anchored by Alaska Airlines and Delta Air Lines, which operate a hub or focus city here. Those carriers base aircraft and crews at Seattle, scheduling banks of connecting flights that join short-haul feeder services to the longer trunk routes which make SEA a recognisable waypoint on the the United States network.
Principal nonstop destinations from Seattle include Los Angeles (LAX), San Francisco (SFO), Denver (DEN), Chicago (ORD), New York (JFK), Las Vegas (LAS), Newark (EWR), Atlanta (ATL), Dallas–Fort Worth (DFW), Boston (BOS) and Salt Lake City (SLC). Each of those airports carries its own profile in this guide, so you can compare terminals, field elevation, based carriers and the busiest routes on the same terms before you book. Those links form part of the guide's internal route graph, connecting SEA to its principal the United States and intercontinental markets.
Airport facts
| IATA / ICAO | SEA / KSEA |
|---|---|
| City | Seattle, Washington, United States |
| Coordinates | 47.45°, -122.31° |
| Elevation | 433 ft |
| Terminals | 1 |
| Timezone | America/Los_Angeles |
| Hub airlines | Alaska Airlines, Delta Air Lines |
Terminals at Seattle–Tacoma International Airport
| Concourses C, D, N | Alaska Airlines |
|---|---|
| Concourses A, B, S | Delta and international (S satellite) |
Airlines occasionally relocate between terminals — confirm with your airline. As of 2026-06.
Live flights near Seattle–Tacoma International Airport
Aircraft in the air near the airport right now — live ADS-B, not a scheduled board.
Checking live traffic…
Connecting airports
Principal destinations served from Seattle–Tacoma International Airport. Live BTS T-100 traffic volumes and on-time rates appear here once this airport's data is baked.
Route guides from SEA
Directional route profiles departing Seattle–Tacoma International Airport, with nonstop carriers, aircraft, typical flight time and where to search fares.
Tools for your trip
- Carry-on size checker Confirm your bag fits before you fly.
- Baggage-fee comparator Compare the all-in cost across carriers.
- Delay & cancellation compensation Check what you're owed if your flight is disrupted.
Frequently asked questions
- What is the airport code for Seattle–Tacoma International Airport?
- Seattle–Tacoma International Airport in Seattle, United States, uses IATA code SEA and ICAO code KSEA.
- Which airlines are based at Seattle (SEA)?
- Alaska Airlines (AS), Delta Air Lines (DL) operate a hub or focus city at Seattle–Tacoma International Airport.
- Where is Seattle–Tacoma International Airport located?
- Seattle–Tacoma International Airport sits at 47.45°, -122.31° and 433 feet above sea level, in the America/Los_Angeles timezone.
- How many terminals does Seattle–Tacoma International Airport have?
- Seattle–Tacoma International Airport has 1 passenger terminal.
- What city and country does SEA serve?
- SEA (Seattle–Tacoma International Airport) serves Seattle, Washington, in United States.
- Is Seattle–Tacoma International Airport a hub airport?
- Yes. Alaska Airlines, Delta Air Lines operate a hub or focus city at SEA, giving Seattle a dense schedule of connecting flights across its 1 terminal.
- Which destinations can you fly to nonstop from Seattle?
- Major nonstop markets from Seattle–Tacoma International Airport include Los Angeles (LAX), San Francisco (SFO), Denver (DEN), Chicago (ORD), New York (JFK), Las Vegas (LAS), each with its own airport profile in this guide.
Data sources
- Airport identity and geography courtesy of OurAirports (ourairports.com) and Wikidata.