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PSM to USN: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Ulsan (Ulsan Airport)
6,855 mi
11,031 km · 5,956 nm
13h 54m
estimated nonstop flight time
+13h
time difference · heading north
See live PSM→USN fares Phone-only fares on this route — call free
Flight time details
6,855 miles nonstop takes roughly 13h 54m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- USN — Ulsan Airport · Ulsan, South Korea
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 PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 mi away
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
Frequently asked questions
How far is PSM from USN?
The flight distance from Portsmouth (PSM) to Ulsan (USN) is 6,855 miles (11,031 km, 5,956 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to USN?
A nonstop flight takes about 13h 54m 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 Portsmouth and Ulsan?
Ulsan is 13 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–USN that never appear on search engines, with no booking fees.