Seattle-Tacoma International

Seattle, United States

IATASEA

ICAOKSEA

Active Runways

3 Runways

Longest: 3,627 m (11,900 ft)

Annual Passengers

~50–52 million

Recorded 2024

Flight Movements

~ 430,000

Commercial movements

Hub Classification

Major West Coast hub

North America Hub

Aerodrome AlignmentApprox. Magnetic Heading

Orientation only · 3 runways

16L / 34R16C / 34C16R / 34L

Headings only—not geographic positions or runway spacing.

RUNWAY INVENTORY (3)ALL-WEATHER ILS CAPABLE

RWY 16L / 34RConcrete

LENGTH3,627 m (11,900 ft)

WIDTH46 m (151 ft)

Heavy Takeoff RatingWidebody Max

Magnetic: 160°Grooved High-Friction

RWY 16C / 34CConcrete

LENGTH2,865 m (9,400 ft)

WIDTH46 m (151 ft)

Heavy Takeoff RatingStandard

Magnetic: 160°Grooved High-Friction

RWY 16R / 34LConcrete

LENGTH2,591 m (8,501 ft)

WIDTH46 m (151 ft)

Heavy Takeoff RatingStandard

Magnetic: 160°Grooved High-Friction

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