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ASH to GMP: distance & flight time
Nashua (Boire Field) → Seoul (Gimpo International Airport)
6,768 mi
10,892 km · 5,881 nm
13h 44m
estimated nonstop flight time
+13h
time difference · heading north
See live ASH→GMP fares Phone-only fares on this route — call free
Flight time details
6,768 miles nonstop takes roughly 13h 44m 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
- ASH — Boire Field · Nashua, United States
- GMP — Gimpo International Airport · Seoul, 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 ASH
- BOS · General Edward Lawrence Logan International Airport39 mi away
- MHT · Manchester-Boston Regional Airport11 mi away
- LWM · Lawrence Municipal Airport20 mi away
- BED · Laurence G Hanscom Field24 mi away
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
Frequently asked questions
How far is ASH from GMP?
The flight distance from Nashua (ASH) to Seoul (GMP) is 6,768 miles (10,892 km, 5,881 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASH to GMP?
A nonstop flight takes about 13h 44m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from ASH to GMP?
Nonstop service on ASH–GMP depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 13h 44m nonstop estimate.
What is the time difference between Nashua and Seoul?
Seoul is 13 hours ahead of Nashua.
What is the cheapest way to fly from ASH to GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASH–GMP that never appear on search engines, with no booking fees.
Why are some ASH to GMP fares phone-only?
Consolidator contracts let us sell certain ASH–GMP tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.