Reference only — not for real-world navigation.
S31
Lopez Island Airport · Lopez
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
209 ft / 64 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
16/34 · 2,904 ft · ASPH-GUNLITFlight Planning
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Welcome to the technical flight briefing for Lopez Island Airport (S31), located in Lopez, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 1 active runway with a maximum elevation of 209 ft. Please note that this field primarily supports VFR and visual approach procedures.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
Lopez Island Airport
ICAO / IATA
S31 / LPS
Municipality
Lopez
Country
Region
US-WA — Washington
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
209 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 16 / 34
UNLIT
Runway Length: 2,904 ft / 885 m
Runway Width: 60 ft / 18 m
Surface Type: ASPH-G
Heading: —° / —°
Runway Width: 60 ft / 18 m
Surface Type: ASPH-G
Heading: —° / —°
RWY 16
No ILS / Visual Only
RWY 34
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026