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ASH to ICN: distance & flight time
Nashua (Boire Field) → Seoul (Incheon International Airport)
6,778 mi
10,908 km · 5,890 nm
13h 45m
estimated nonstop flight time
+13h
time difference · heading north
See live ASH→ICN fares Phone-only fares on this route — call free
Flight time details
6,778 miles nonstop takes roughly 13h 45m 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
- ICN — Incheon 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 ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
Frequently asked questions
How far is ASH from ICN?
The flight distance from Nashua (ASH) to Seoul (ICN) is 6,778 miles (10,908 km, 5,890 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASH to ICN?
A nonstop flight takes about 13h 45m 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 Nashua and Seoul?
Seoul is 13 hours ahead of Nashua.
What is the cheapest way to fly from ASH to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASH–ICN that never appear on search engines, with no booking fees.