What is the flight distance between GAI and SFO?

Distance between Montgomery County Airport (GAI) and SFO International Airport (SFO) is 3903 kilometers or 2425 miles.

Distance From Montgomery County Airport to SFO International Airport (GAI - SFO Distance)

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

Flight time from Montgomery County Airport, Gaithersburg, United States to SFO International Airport, San Francisco, United States is 4 hours 51 minutes under avarage conditions.

Q: What is the time difference between Gaithersburg, United States and San Francisco, United States?

Time difference between Gaithersburg (United States) and San Francisco (United States) is 3 Hours. San Francisco time is 3 Hours behind Gaithersburg. It is currently 10:13 in Montgomery County Airport (GAI) and 07:13 in SFO International Airport (SFO).

The flight distance from Montgomery County Airport (GAI) to SFO International Airport (SFO) is 2425 miles. This is equivalent to 3903 kilometers or 2106 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.

3903 kilometers is the distance from Montgomery County Airport, United States to SFO International Airport, United States.

Flight Duration between Gaithersburg, United States and San Francisco, United States

Estimated flight time from Montgomery County Airport, Gaithersburg, United States to SFO International Airport, San Francisco, United States is 4 hours 51 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 - SFO

Time difference between Gaithersburg (United States) and San Francisco (United States) is 3 Hours.
Current local time in Gaithersburg is 2025-12-05, 10:13:19 EST and time in San Francisco is 2025-12-05, 07:13:19 PST.
San Francisco time is 3 Hours behind Gaithersburg.

Montgomery County Airport to SFO International Airport Flight Route Map - GAI to SFO Flight Path

Location of Montgomery County Airport & SFO International Airport is given below.
Click the map to view Gaithersburg to San Francisco nonstop flight path and travel direction.

Click to see flight route on Google Map between Gaithersburg, United States and San Francisco, United States. .

Nonstop flight route between Gaithersburg, United States and San Francisco, 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:	2025-12-05, 10:13:19 EST
Current weather:	Montgomery County Airport 15 day weather forecast

SFO International Airport
City:	San Francisco
Country:	United States
IATA Code:	SFO
ICAO Code:	KSFO
GPS Coordinates:	Latitude: N 37° 37' 8.3'' Longitude: W 122° 22' 29.6''
Current time:	2025-12-05, 07:13:19 PST
Current weather:	SFO International Airport 15 day weather forecast
Flights: