What is the flight distance between GAI and HHH?

Distance between Montgomery County Airport (GAI) and Hilton Head Airport (HHH) is 836 kilometers or 519 miles.

Distance From Montgomery County Airport to Hilton Head Airport (GAI - HHH Distance)

Q: How long is the flight from GAI to HHH?

Flight time from Montgomery County Airport, Gaithersburg, United States to Hilton Head Airport, Hilton Head, United States is 1 hours 2 minutes under avarage conditions.

Q: What is the time difference between Gaithersburg, United States and Hilton Head, United States?

Time difference between Gaithersburg (United States) and Hilton Head (United States) is 0 Hours. It is currently 15:59 in Montgomery County Airport (GAI) and 15:59 in Hilton Head Airport (HHH).

The flight distance from Montgomery County Airport (GAI) to Hilton Head Airport (HHH) is 519 miles. This is equivalent to 836 kilometers or 451 nautical miles. The distance shown below is the straight line distance (may be called as flying or air distance) or direct flight distance between airports.

836 kilometers is the distance from Montgomery County Airport, United States to Hilton Head Airport, United States.

Flight Duration between Gaithersburg, United States and Hilton Head, United States

Estimated flight time from Montgomery County Airport, Gaithersburg, United States to Hilton Head Airport, Hilton Head, United States is 1 hours 2 minutes under avarage conditions. The flight time calculator assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/hr or 434 knots. Your actual flying time may vary depending on wind speeds or weather conditions.

Time Difference Between the Airports • GAI - HHH

Time difference between Gaithersburg (United States) and Hilton Head (United States) is 0 Hours.
Current local time in Gaithersburg is 2026-01-11, 15:59:54 EST and time in Hilton Head is 2026-01-11, 15:59:54 EST.

Montgomery County Airport to Hilton Head Airport Flight Route Map - GAI to HHH Flight Path

Location of Montgomery County Airport & Hilton Head Airport is given below.
Click the map to view Gaithersburg to Hilton Head nonstop flight path and travel direction.

Click to see flight route on Google Map between Gaithersburg, United States and Hilton Head, United States. .

Nonstop flight route between Gaithersburg, United States and Hilton Head, United States.

Montgomery County Airport
City:	Gaithersburg
Country:	United States
IATA Code:	GAI
ICAO Code:	KGAI
GPS Coordinates:	Latitude: N 39° 10' 6'' Longitude: W 77° 9' 57.6''
Current time:	2026-01-11, 15:59:54 EST
Current weather:	Montgomery County Airport 15 day weather forecast

Hilton Head Airport
City:	Hilton Head
Country:	United States
IATA Code:	HHH
ICAO Code:	KHXD
GPS Coordinates:	Latitude: N 32° 13' 27.8'' Longitude: W 80° 41' 51''
Current time:	2026-01-11, 15:59:54 EST
Current weather:	Hilton Head Airport 15 day weather forecast
Flights: