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USN to HPH: distance & flight time
Ulsan (Ulsan Airport) → Haiphong (Cat Bi International Airport)
1,707 mi
2,748 km · 1,484 nm
3h 49m
estimated nonstop flight time
-2h
time difference · heading southwest
See live USN→HPH fares Phone-only fares on this route — call free
Flight time details
1,707 miles nonstop takes roughly 3h 49m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- 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 USN
- KPO · Pohang Airport (G-815/K-3)28 mi away
- PUS · Gimhae International Airport37 mi away
- TAE · Daegu Airport44 mi away
- CHF · Jinhae Airbase/Airport (G-813/K-10)48 mi away
Near HPH
- HAN · Noi Bai International Airport65 mi away
Frequently asked questions
How far is USN from HPH?
The flight distance from Ulsan (USN) to Haiphong (HPH) is 1,707 miles (2,748 km, 1,484 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to HPH?
A nonstop flight takes about 3h 49m 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 Ulsan and Haiphong?
Haiphong is 2 hours behind Ulsan.
What is the cheapest way to fly from USN to HPH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–HPH that never appear on search engines, with no booking fees.