Distance From Montgomery County Airpark to Josep Tarradellas Barcelona-El Prat Airport, GAI - BCN Distance

The distance from Montgomery County Airpark (GAI) to Josep Tarradellas Barcelona-El Prat Airport (BCN) is 4028 miles or 6482 kilometers or 3498 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Gaithersburg ( United States ) to Barcelona ( Spain )?

A one-way nonstop (direct) flight between Gaithersburg and Barcelona takes around 9 hours 15 minutes.

Estimated flight time from Montgomery County Airpark, Gaithersburg, United States to Josep Tarradellas Barcelona-El Prat Airport, Barcelona, Spain is 9 hours 15 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • GAI - BCN

Kilometers		6482 km
Statute Miles		4028 miles
Nautical Miles		3498 nm
Avg. Time of Flight		9 hours 15 minutes

Montgomery County Airpark to Josep Tarradellas Barcelona-El Prat Airport Flight Route Map - GAI to BCN Flight Path

Location of Montgomery County Airpark & Josep Tarradellas Barcelona-El Prat Airport is given below.
Click the map to view Gaithersburg to Barcelona nonstop flight path and travel direction.

Click to see flight route on Google Map between Gaithersburg, United States and Barcelona, Spain. .

Nonstop flight route between Gaithersburg, United States and Barcelona, Spain.

Time Difference Between the Airports • GAI - BCN

Time difference between Gaithersburg (United States) and Barcelona (Spain) is 6 Hours.
Barcelona time is 6 Hours ahead of Gaithersburg.

Location	Local Time
Gaithersburg (United States)	2026-09-13, 03:53:29 EDT
Barcelona (Spain)	2026-09-13, 09:53:29 CEST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Montgomery County Airpark (GAI / KGAI) Gaithersburg, United States

Destination

Josep Tarradellas Barcelona-El Prat Airport (BCN / LEBL) Barcelona, Spain