Reference only — not for real-world navigation.
KSEA
Seattle–Tacoma International Airport · Seattle
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
433 ft / 132 m
Transition Altitude
18,000 ft
Primary Channel
TWR 119.90 MHz (Seattle Tower)
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Seattle–Tacoma International Airport (KSEA), located in Seattle, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 4 active runways with a maximum elevation of 433 ft. Instrument approaches (IFR) are supported with verified ILS frequencies and identifiers for precision landings.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.
Full Name
Seattle–Tacoma International Airport
ICAO / IATA
KSEA / SEA
Municipality
Seattle
Country
Region
US-WA — Washington
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
433 ft
Official Website
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 16L / 34R
ILS EQUIPPEDLIGHTED
Runway Length: 11,900 ft / 3,627 m
Runway Width: 150 ft / 46 m
Surface Type: Asphalt
Heading: 180° / 360°
Runway Width: 150 ft / 46 m
Surface Type: Asphalt
Heading: 180° / 360°
RWY 16L (180°)
110.30 MHz
IDENT: SNQ | CRS: 164°
RWY 34R (360°)
110.30 MHz
IDENT: SEA | CRS: 344°
Runway 16C / 34C
ILS EQUIPPEDLIGHTED
Runway Length: 9,426 ft / 2,873 m
Runway Width: 150 ft / 46 m
Surface Type: CONC-F
Heading: 180° / 360°
Runway Width: 150 ft / 46 m
Surface Type: CONC-F
Heading: 180° / 360°
RWY 16C (180°)
111.70 MHz
IDENT: SZI | CRS: 164°
RWY 34C (360°)
111.70 MHz
IDENT: TUC | CRS: 344°
Runway 16R / 34L
ILS EQUIPPEDLIGHTED
Runway Length: 9,426 ft / 2,873 m
Runway Width: 150 ft / 46 m
Surface Type: Concrete
Heading: 180° / 360°
Runway Width: 150 ft / 46 m
Surface Type: Concrete
Heading: 180° / 360°
RWY 16R (180°)
110.75 MHz
IDENT: CJL | CRS: 164°
RWY 34L (360°)
110.75 MHz
IDENT: BEJ | CRS: 344°
Runway lower / high
LIGHTED
Runway Length: 0 ft / —
Runway Width: 0 ft / —
Surface Type: —
Heading: —° / —°
Runway Width: 0 ft / —
Surface Type: —
Heading: —° / —°
RWY lower
No ILS / Visual Only
RWY high
No ILS / Visual Only
A/D APP/DEP
119.20 MHz
CLD CLNC DEL
128.00 MHz
CTAF Oshosh traffic
118.50 MHz
D-ATIS Digital ATIS
118.00 MHz
GND Seattle Ground
121.70 MHz
TWR Seattle Tower
119.90 MHz
UNIC UNICOM
122.95 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026