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IWK to GMP: distance & flight time
Iwakuni (Iwakuni Marine Corps Air Station) → Seoul (Gimpo International Airport)
385 mi
620 km · 335 nm
1h 29m
estimated nonstop flight time
—
time difference · heading northwest
See live IWK→GMP fares Phone-only fares on this route — call free
Flight time details
385 miles nonstop takes roughly 1h 29m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- IWK — Iwakuni Marine Corps Air Station · Iwakuni, Japan
- 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 IWK
- HIW · Hiroshimanishi Airport18 mi away
- MYJ · Matsuyama Airport34 mi away
- HIJ · Hiroshima Airport44 mi away
- IWJ · Iwami Airport45 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 IWK from GMP?
The flight distance from Iwakuni (IWK) to Seoul (GMP) is 385 miles (620 km, 335 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IWK to GMP?
A nonstop flight takes about 1h 29m 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 cheapest way to fly from IWK to GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IWK–GMP that never appear on search engines, with no booking fees.