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The Pilots Desk
Small airport

Chester County G O Carlson Airport

IATA CTHICAO KMQSLocal MQS🇺🇸 Coatesville
Coordinates
39.9790°N, 75.8655°W
Elevation
660 ft (201 m)
Type
Small airport
Region
US-PA
Time zone
New York(UTC-04:00)
Magnetic variation
11.5° W

Daylight today(Jul 18, 2026, local time)

Civil dawn
05:19
Sunrise
05:50
Sunset
20:30
Civil dusk
21:02

About 14h 40m 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 Chester County G O Carlson Airport

Chester County G O Carlson Airport

Chester County G. O. Carlson Airport is a public airport 2 miles (3.2 km) west of Coatesville, in Valley Township, Chester County, Pennsylvania, United States. It is owned by the Chester County Area Airport Authority.

Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.

Live weather

KMQS

Live departures & arrivals

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Flight data by AeroDataBox. Times are estimates — not for navigation; confirm with the airline.

Where you can fly from here

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Current scheduled routes & daily frequency by AeroDataBox. Approximate — confirm bookable schedules with the airline.

Map

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

Runways (1)

RunwayLengthWidthSurfaceLightingStatus
11 / 295,400 ft / 1,646 m100 ftAspLightedOpen

Radio frequencies (5)

TypeDescriptionFrequency
A/DPHILADELPHIA APP/DEP124.350 MHz
AWOSAWOS 3126.250 MHz
CLDCLNC DEL125.600 MHz
RDOWILLIAMSPORT RDO113.200 MHz
UNICCTAF/UNICOM122.700 MHz

Instrument procedures & charts

Cycle 2606 · effective Jun 11, 2026 – Jul 9, 2026 Not for navigation — confirm currency on the official FAA source.

Charts published by the FAA (public domain) and updated each 28-day cycle. Always fly the current, official chart. Full charts page.

Tall obstacles nearby

ObstacleHeight AGLTop (MSL)Lit
American Towers358 ft617 ft

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

Nearby airports

Great-circle distance and true bearing from Chester County G O Carlson Airport.

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

Frequently asked questions

What is the ICAO code for Chester County G O Carlson Airport?

The ICAO code for Chester County G O Carlson Airport is KMQS, and its IATA code is CTH.

Where is Chester County G O Carlson Airport located?

Chester County G O Carlson Airport is small airport located in Coatesville, United States, at an elevation of 660 ft (201 m).

How many runways does Chester County G O Carlson Airport have?

Chester County G O Carlson Airport has 1 runway, the longest being 5,400 ft / 1,646 m.

What time zone is Chester County G O Carlson Airport in?

Chester County G O Carlson Airport is in the America/New York time zone (UTC-04:00).

What is the magnetic variation at Chester County G O Carlson Airport?

The magnetic variation (declination) at Chester County G O Carlson Airport is approximately 11.5° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.

What airports are near Chester County G O Carlson Airport?

The nearest airport to Chester County G O Carlson Airport is Fetters Construction Airport (PA70), about 9.8 nm to the ne, followed by Harris Airport and New Garden Airport.

Is the information on this page suitable for flight planning?

No. Chester County G O Carlson Airport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.