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GAI to HKG: distance & flight time
Gaithersburg (Montgomery County Airpark) → Hong Kong (Hong Kong International Airport)
8,129 mi
13,083 km · 7,064 nm
16h 24m
estimated nonstop flight time
+12h
time difference · heading north
See live GAI→HKG fares Phone-only fares on this route — call free
Flight time details
8,129 miles nonstop takes roughly 16h 24m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- HKG — Hong Kong International Airport · Hong Kong, Hong Kong
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 GAI
Near HKG
- HHP · Shun Tak Heliport15 mi away
- MFM · Macau International Airport23 mi away
- SZX · Shenzhen Bao'an International Airport24 mi away
- ZUH · Zhuhai Jinwan Airport40 mi away
Frequently asked questions
How far is GAI from HKG?
The flight distance from Gaithersburg (GAI) to Hong Kong (HKG) is 8,129 miles (13,083 km, 7,064 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to HKG?
A nonstop flight takes about 16h 24m 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 Gaithersburg and Hong Kong?
Hong Kong is 12 hours ahead of Gaithersburg.
What is the cheapest way to fly from GAI to HKG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–HKG that never appear on search engines, with no booking fees.