IATA Code
SEA
ICAO Code
KSEA
Airport Type
Large Airport
Class
International

Seattle-Tacoma International Airport (SEA, “Sea-Tac”) is the principal airport for the Seattle metro area and a major hub for Alaska Airlines and a key base for other carriers. Passenger traffic is in the tens of millions annually. The airport has a single central terminal complex with multiple concourses.

Seattle–Tacoma International Airport
Elevation: 131 m
47.4479, -122.3103

Terminal Guide for Seattle-Tacoma International Airport #

SEA has one central terminal with multiple concourses (commonly referred to as Concourses A, B and C) branching from the main ticketing and baggage hall; concourses are connected airside and landside via walkways and people‑movers. Ground transport, rental cars and hotels are immediately adjacent to the terminal complex.

Getting to and From Seattle-Tacoma International Airport #

Downtown Seattle is about 20 miles (≈32 km) by road; typical travel time on the Link light rail is 35-40 minutes and by car/taxi 25-45 minutes depending on traffic.

  • Light rail: Sound Transit Link light rail serves the airport station adjacent to the terminal and runs frequently to downtown Seattle; fares are modest (card or app payment).
  • Taxis / rideshare: Taxis and app services operate from designated curb areas; fares vary with distance and traffic.
  • Shuttles / buses: Shared shuttles and airport buses connect to hotels and suburban locations; schedule and booking vary by operator.

Facilities, Shopping, and Dining at Seattle-Tacoma International Airport #

SEA offers a wide range of services: multiple airline and independent lounges, sit‑down restaurants and fast‑casual outlets, duty‑free shopping (international departures), free/limited Wi‑Fi, charging points and family facilities. Accessibility services and medical assistance are available; baggage services and shops operate throughout the day.

Hotels and Layovers at Seattle-Tacoma International Airport #

  • Seattle Airport Marriott - adjacent to the terminal area; book via marriott.com.

Tips for Seattle–Tacoma International Airport #

  • The Link light rail is often the fastest and cheapest way into downtown Seattle during daytime - it connects the airport to downtown in about 35-40 minutes.
  • If you have a tight connection check concourse locations before you arrive; Alaska Airlines operates large operations and many gates are in Concourse A and C.
  • Consider TSA PreCheck or Clear (if enrolled) to speed security at peak times.

Weather & Climate near Seattle–Tacoma International Airport #

Climate

Seattle–Tacoma International Airport's climate is classified as Warm-Summer Mediterranean - Warm-Summer Mediterranean climate with mild summers (peaking in August) and cold winters (coldest in December). Temperatures range from 1°C to 24°C. Moderate rainfall (987 mm/year).

Air Quality: AQI 30 Good
Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
38°
Warmest Month
-10°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 1° - 8° 2° 138 mm overcast 90% 3.2 m/s 0.1 low 8.8h
February Acceptable 2° - 10° 3° 109 mm overcast 87% 3.2 m/s 0.2 low 10.1h
March Poor 3° - 12° 5° 103 mm overcast 85% 3.3 m/s 0.5 moderate 11.8h
April Acceptable 5° - 14° 8° 70 mm overcast 82% 3.3 m/s 0.9 moderate 13.5h
May Good 8° - 18° 13° 46 mm overcast 80% 3.3 m/s 1.3 high 14.9h
June Very Good 10° - 21° 16° 39 mm overcast 80% 3.3 m/s 1.6 very high 15.7h
July Ideal 12° - 24° 18° 23 mm some cloud 77% 3.2 m/s 1.8 very high 15.3h
August Excellent 12° - 25° 18° 29 mm partly cloudy 76% 3.0 m/s 1.4 high 14.1h
September Very Good 10° - 21° 16° 43 mm partly cloudy 78% 2.8 m/s 0.9 moderate 12.4h
October Good 6° - 16° 11° 83 mm overcast 84% 2.8 m/s 0.4 low 10.7h
November Poor 4° - 10° 5° 149 mm overcast 89% 3.3 m/s 0.1 low 9.2h
December Poor 1° - 7° 2° 155 mm overcast 90% 3.2 m/s 0.1 low 8.3h

Nearby Cities #