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Seattle-Tacoma International Airport runways

Seattle-Tacoma International Airport (SEA · KSEA) in Seattle, WA has 3 runways , the longest 16L/34R at 11,901 ft (concrete). Dimensions, headings, lighting, and instrument approaches for each below.

Runway 16C/34C

9,426 ft × 150 ft · Concrete (Excellent)

Edge lights: High.

16C
Heading
164° mag · 180° true
Threshold elev
429 ft
Markings
precision
VGSI
4-light PAPI (left) (3°)
Approach lights
ALSF2
Instrument landing
ILS/DME · CAT IIIB · LOC 111.7 (SZI) · GS 3.00°
Traffic pattern
Left
34C
Heading
344° mag · 0° true
Threshold elev
363 ft
Markings
precision
VGSI
4-light PAPI (left) (3°)
Approach lights
MALSR
Instrument landing
ILS/DME · CAT I · LOC 111.7 (TUC) · GS 3.00°
Traffic pattern
Left

Runway 16L/34R

11,901 ft × 150 ft · Concrete (Excellent)

Edge lights: High.

16L
Heading
164° mag · 180° true
Threshold elev
432 ft
Markings
precision
VGSI
4-light PAPI (left) (3°)
Approach lights
ALSF2
Instrument landing
ILS/DME · CAT III · LOC 110.3 (SNQ) · GS 3.00°
Traffic pattern
Left
34R
Heading
344° mag · 0° true
Threshold elev
347 ft
Markings
precision
VGSI
4-light PAPI (left) (2.75°)
Approach lights
MALSR
Instrument landing
ILS/DME · CAT I · LOC 110.3 (SEA) · GS 2.75°
Traffic pattern
Left

Runway 16R/34L

8,500 ft × 150 ft · Concrete (Excellent)

Edge lights: High.

16R
Heading
164° mag · 180° true
Threshold elev
415 ft
Markings
precision
VGSI
4-light PAPI (right) (3°)
Approach lights
ALSF2
Instrument landing
ILS/DME · CAT III · LOC 110.75 (CJL) · GS 3.00°
Traffic pattern
Left
34L
Heading
344° mag · 0° true
Threshold elev
356 ft
Markings
precision
VGSI
4-light PAPI (left) (3°)
Approach lights
MALSR
Instrument landing
ILS/DME · CAT I · LOC 110.75 (BEJ) · GS 3.00°
Traffic pattern
Left

Runway data from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources.