Prosser, Washington
S40 Prosser
Prosser (S40) is a non-towered, public-use airport in Prosser, Washington, at 705.5 ft MSL. Its runway is 08/26 (3,452 by 61 ft, asphalt). Right traffic for runway 26. Published pattern altitude 800 ft AGL (about 1,506 ft MSL). CTAF 122.8.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- FAA S40
- Location
- Prosser, Washington (Benton County). 1 NM NW of the city center
- Elevation
- 705.5 ft MSL
- Position
- 46.2134° N, 119.7956° W
- Pattern altitude
- 800 ft AGL
- Control tower
- No, non-towered
- Sectional chart
- Seattle
- Magnetic variation
- 19° E (1985)
- Fuel
- 100LL
- Ownership
- Publicly owned, open to the public
- Attendance
- Unattended
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 08/26 | 3,452 × 61 ft | Asphalt, excellent condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 08 | Left traffic | 2-light PAPI, right | None listed | None listed | Not listed |
| 26 | Right traffic | 2-light PAPI, left | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.8
- Actvt Reil Rwys 08 & 26; Papi Rwys 08 & 26; Mirl Rwy 08/26 - Ctaf.
- UNICOM
- 122.8
- Unicom 122.8 0900-1700 Only.
Weather station
- AWOS-1 S40
- 121.125
Before you go
Brief S40 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Prosser, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.