S31 — Lopez Island Airport, WA

Non-ToweredLopez, WA • IATA: LPS • 209' MSL

S31 WeatherLive METAR & TAF

S31 has 1 runway. The longest is 16/34 at 2,905 ft × 61 ft (asphalt).

16/34No runway lights · Right traffic 162,905 ft × 61 ftAsphalt

FAA NASR data, cycle 2026-09-03

S31 field elevation is 209 ft MSL. The standard traffic pattern altitude at S31 is 1,210 ft MSL (1,000 ft AGL).

Field elevation209 ft MSL

Pattern altitude1,210 ft MSL1,000 ft AGL · standard

Control towerNon-towered

FAA NASR data, cycle 2026-09-03

CTAF 128.25 MHz — S31 is non-towered; self-announce position and intentions on CTAF.

CTAF128.25

Check S31 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.

No, S31 is a non-towered airport. The CTAF frequency is 128.25 MHz.

S31 has 1 runway (16/34). The longest runway is 2,905 feet.

S31 uses the standard traffic pattern altitude of 1,000 feet AGL — about 1,210 feet MSL at a field elevation of 209 feet.

S31 (Lopez Island Airport) has a field elevation of 209 feet MSL.

S31 (Lopez Island Airport) is located in Lopez, WA.