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Sidney, Montana

KSDY Sidney-Richland Rgnl

Sidney-Richland Rgnl (KSDY) is a non-towered, public-use airport in Sidney, Montana, at 1,985.1 ft MSL. It has 2 runways: 01/19 (5,705 by 100 ft, asphalt), 11/29 (4,024 by 100 ft, asphalt). Right traffic for runways 19, 11. 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
ICAO KSDY, FAA SDY
Location
Sidney, Montana (Richland County). 1 NM W of the city center
Elevation
1,985.1 ft MSL
Position
47.7069° N, 104.1926° W
Control tower
No, non-towered
Sectional chart
Billings
Magnetic variation
9° E (2010)
Fuel
100LL, Jet A
Ownership
Publicly owned, open to the public
Attendance
Daily 0600-1900

2 runways

Runways

RunwayLength × widthSurfaceEdge lights
01/195,705 × 100 ftAsphalt, good conditionMedium intensity
11/294,024 × 100 ftAsphalt, good conditionMedium intensity

Runway ends and traffic pattern

EndPatternGlide slope lightsInstrumentDisplaced thresholdLanding distance
01Left traffic2-light PAPI, leftNone listedNone listed5,705 ft
19Right traffic2-light PAPI, leftNone listedNone listed5,705 ft
11Right traffic2-light PAPI, leftNone listedNone listed4,023 ft
29Left traffic2-light PAPI, leftNone listedNone listed4,023 ft

VHF

Frequencies

CTAF
122.8
Actvt Mirl Rys 01/19 & 11/29; Reil Rys 01 & 19, 11 & 29; Papi Rys 01 & 19, 11 & 29 - Ctaf.
UNICOM
122.8

Weather station

AWOS-3PT SDY
119.275

Within reach

Nearest public airports

Before you go

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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.