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HEI to GAI: distance & flight time
Büsum (Heide-Büsum Airport) → Gaithersburg (Montgomery County Airpark)
3,946 mi
6,350 km · 3,429 nm
8h 12m
estimated nonstop flight time
-6h
time difference · heading northwest
See live HEI→GAI fares Phone-only fares on this route — call free
Flight time details
3,946 miles nonstop takes roughly 8h 12m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- HEI — Heide-Büsum Airport · Büsum, Germany
- GAI — Montgomery County Airpark · Gaithersburg, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near HEI
- PSH · St. Peter-Ording Airport14 mi away
- FCN · Nordholz Naval Airbase28 mi away
- WBG · Schleswig Air Base33 mi away
- HGL · Helgoland-Düne Airport40 mi away
Near GAI
Frequently asked questions
How far is HEI from GAI?
The flight distance from Büsum (HEI) to Gaithersburg (GAI) is 3,946 miles (6,350 km, 3,429 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEI to GAI?
A nonstop flight takes about 8h 12m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Büsum and Gaithersburg?
Gaithersburg is 6 hours behind Büsum.
What is the cheapest way to fly from HEI to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEI–GAI that never appear on search engines, with no booking fees.