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The Pilots Desk
Small airport

St John Airport

ICAO 4MD9🇺🇸 Owings Mills
Coordinates
39.4806°N, 76.7606°W
Elevation
461 ft (141 m)
Type
Small airport
Region
US-MD
Time zone
New York(UTC-04:00)
Magnetic variation
10.9° W

Daylight today(Jul 15, 2026, local time)

Civil dawn
05:21
Sunrise
05:53
Sunset
20:34
Civil dusk
21:06

About 14h 41m 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 St John Airport

St John Airport is a small airport in Owings Mills, United States. It sits at an elevation of 461 ft (141 m) and has 1 runway, the longest 2,600 ft / 792 m. It observes America/New York local time. The nearest airport is Reservoir Airport (MD95), about 5.6 nm to the w.

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
02 / 20▸ displaced2,600 ft / 792 m120 ftTurfUnlitOpen

Airspace in this area(1)

NameClassTypeFloorCeiling
WASHINGTON-TRI AREA CLASS B AREA DClass BControlled3500 ft MSL10000 ft MSL

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

Tall obstacles nearby

ObstacleHeight AGLTop (MSL)Lit
WBFF-DT (Baltimore)1,260 ft256 ft
Obstacle896 ft302 ft
Ridgely Condominium354 ft489 ft
800 MHz Tower - Warren Rd348 ft335 ft
Obstacle285 ft

Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.

Nearby airports

Great-circle distance and true bearing from St John Airport.

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 St John Airport located?

St John Airport is small airport located in Owings Mills, United States, at an elevation of 461 ft (141 m).

How many runways does St John Airport have?

St John Airport has 1 runway, the longest being 2,600 ft / 792 m.

What time zone is St John Airport in?

St John Airport is in the America/New York time zone (UTC-04:00).

What is the magnetic variation at St John Airport?

The magnetic variation (declination) at St John Airport is approximately 10.9° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.

What airports are near St John Airport?

The nearest airport to St John Airport is Reservoir Airport (MD95), about 5.6 nm to the w, followed by Clearview Airpark and Albrecht Airstrip.

Is the information on this page suitable for flight planning?

No. St John Airport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.