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HHP to GAI: distance & flight time
Hong Kong (Shun Tak Heliport) → Gaithersburg (Montgomery County Airpark)
8,128 mi
13,081 km · 7,063 nm
16h 24m
estimated nonstop flight time
-12h
time difference · heading north
See live HHP→GAI fares Phone-only fares on this route — call free
Flight time details
8,128 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 set-back when reading arrival times on your ticket.
The two airports
- HHP — Shun Tak Heliport · Hong Kong, Hong Kong
- 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 HHP
- HKG · Hong Kong International Airport15 mi away
- SZX · Shenzhen Bao'an International Airport33 mi away
- MFM · Macau International Airport37 mi away
- ZUH · Zhuhai Jinwan Airport53 mi away
Near GAI
Frequently asked questions
How far is HHP from GAI?
The flight distance from Hong Kong (HHP) to Gaithersburg (GAI) is 8,128 miles (13,081 km, 7,063 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HHP to GAI?
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 Hong Kong and Gaithersburg?
Gaithersburg is 12 hours behind Hong Kong.
What is the cheapest way to fly from HHP to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HHP–GAI that never appear on search engines, with no booking fees.