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ISN to HPH: distance & flight time
Williston (Sloulin Field International Airport) → Haiphong (Cat Bi International Airport)
7,313 mi
11,769 km · 6,355 nm
14h 48m
estimated nonstop flight time
+12h
time difference · heading northwest
See live ISN→HPH fares Phone-only fares on this route — call free
Flight time details
7,313 miles nonstop takes roughly 14h 48m 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
- ISN — Sloulin Field International Airport · Williston, 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 ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 mi away
Near HPH
- HAN · Noi Bai International Airport65 mi away
Frequently asked questions
How far is ISN from HPH?
The flight distance from Williston (ISN) to Haiphong (HPH) is 7,313 miles (11,769 km, 6,355 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to HPH?
A nonstop flight takes about 14h 48m 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 Williston and Haiphong?
Haiphong is 12 hours ahead of Williston.
What is the cheapest way to fly from ISN to HPH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–HPH that never appear on search engines, with no booking fees.