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The Pilots Desk
Small airport

Gregory Municipal Airport - Flynn Field

ICAO K9D1Local 9D1🇺🇸 Gregory
Coordinates
43.2217°N, 99.4033°W
Elevation
2,168 ft (661 m)
Type
Small airport
Region
US-SD
Time zone
Chicago(UTC-05:00)
Magnetic variation
4.4° E

Daylight today(Jul 16, 2026, local time)

Civil dawn
05:39
Sunrise
06:13
Sunset
21:16
Civil dusk
21:50

About 15h 3m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.

About Gregory Municipal Airport - Flynn Field

Gregory Municipal Airport - Flynn Field is a small airport in Gregory, United States. It sits at an elevation of 2,168 ft (661 m) and has 1 runway, the longest 3,799 ft / 1,158 m. It observes America/Chicago local time. The nearest airport is Selle Airport (SD30), about 21.6 nm to the ese.

Summary generated from this airport’s structured data — reference only.

Map

Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.

Runways (1)

RunwayLengthWidthSurfaceLightingStatus
13 / 313,799 ft / 1,158 m60 ftAspLightedOpen

Radio frequencies (2)

TypeDescriptionFrequency
FSSHURON RDO122.100 MHz
UNICCTAF/UNICOM122.800 MHz

Airspace in this area(1)

NameClassTypeFloorCeiling
LAKE ANDES 0900-1200 1400-1700 TUE-SAT & BY NOTAM 128Special useDanger6000 ft MSL17999 ft MSL

Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.

Nearby airports

Great-circle distance and true bearing from Gregory Municipal Airport - Flynn Field.

Official site Live tracking (FR24) Open in Maps
🇺🇸 More airports in United States📘 Flying in the United States: a pilot's guide

Frequently asked questions

Where is Gregory Municipal Airport - Flynn Field located?

Gregory Municipal Airport - Flynn Field is small airport located in Gregory, United States, at an elevation of 2,168 ft (661 m).

How many runways does Gregory Municipal Airport - Flynn Field have?

Gregory Municipal Airport - Flynn Field has 1 runway, the longest being 3,799 ft / 1,158 m.

What time zone is Gregory Municipal Airport - Flynn Field in?

Gregory Municipal Airport - Flynn Field is in the America/Chicago time zone (UTC-05:00).

What is the magnetic variation at Gregory Municipal Airport - Flynn Field?

The magnetic variation (declination) at Gregory Municipal Airport - Flynn Field is approximately 4.4° E, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.

What airports are near Gregory Municipal Airport - Flynn Field?

The nearest airport to Gregory Municipal Airport - Flynn Field is Selle Airport (SD30), about 21.6 nm to the ese, followed by Winner Regional Airport and Pepper Port Airport.

Is the information on this page suitable for flight planning?

No. Gregory Municipal Airport - Flynn Field data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.