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GTF to ICN: distance & flight time
Great Falls (Great Falls International Airport) → Seoul (Incheon International Airport)
5,571 mi
8,966 km · 4,841 nm
11h 23m
estimated nonstop flight time
+15h
time difference · heading northwest
See live GTF→ICN fares Phone-only fares on this route — call free
Flight time details
5,571 miles nonstop takes roughly 11h 23m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, 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 GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 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 GTF from ICN?
The flight distance from Great Falls (GTF) to Seoul (ICN) is 5,571 miles (8,966 km, 4,841 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to ICN?
A nonstop flight takes about 11h 23m 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 Great Falls and Seoul?
Seoul is 15 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–ICN that never appear on search engines, with no booking fees.