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GMP to PSM: distance & flight time
Seoul (Gimpo International Airport) → Portsmouth (Portsmouth International at Pease Airport)
6,757 mi
10,874 km · 5,871 nm
13h 43m
estimated nonstop flight time
-13h
time difference · heading north
See live GMP→PSM fares Phone-only fares on this route — call free
Flight time details
6,757 miles nonstop takes roughly 13h 43m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- GMP — Gimpo International Airport · Seoul, South Korea
- PSM — Portsmouth International at Pease Airport · Portsmouth, 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 GMP
- ICN · Incheon International Airport20 mi away
- SSN · Seoul Air Base (K-16)19 mi away
- SWU · Suwon Airport25 mi away
- OSN · Osan Air Base35 mi away
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
Frequently asked questions
How far is GMP from PSM?
The flight distance from Seoul (GMP) to Portsmouth (PSM) is 6,757 miles (10,874 km, 5,871 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GMP to PSM?
A nonstop flight takes about 13h 43m 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 Seoul and Portsmouth?
Portsmouth is 13 hours behind Seoul.
What is the cheapest way to fly from GMP to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GMP–PSM that never appear on search engines, with no booking fees.