Need help booking?
Unpublished phone-only deals available
ATY to HPH: distance & flight time
Watertown (Watertown Regional Airport) → Haiphong (Cat Bi International Airport)
7,652 mi
12,315 km · 6,650 nm
15h 28m
estimated nonstop flight time
+12h
time difference · heading northwest
See live ATY→HPH fares Phone-only fares on this route — call free
Flight time details
7,652 miles nonstop takes roughly 15h 28m gate to gate, flying northwest. 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
- ATY — Watertown Regional Airport · Watertown, United States
- HPH — Cat Bi International Airport · Haiphong, Vietnam
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 ATY
- HON · Huron Regional Airport64 mi away
- ABR · Aberdeen Regional Airport72 mi away
- MHE · Mitchell Municipal Airport90 mi away
- FSD · Joe Foss Field Airport94 mi away
Near HPH
- HAN · Noi Bai International Airport65 mi away
Frequently asked questions
How far is ATY from HPH?
The flight distance from Watertown (ATY) to Haiphong (HPH) is 7,652 miles (12,315 km, 6,650 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ATY to HPH?
A nonstop flight takes about 15h 28m 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 Watertown and Haiphong?
Haiphong is 12 hours ahead of Watertown.
What is the cheapest way to fly from ATY to HPH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ATY–HPH that never appear on search engines, with no booking fees.