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KUM to ICN: distance & flight time
Yakushima (Yakushima Airport) → Seoul (Incheon International Airport)
545 mi
878 km · 474 nm
1h 39m
estimated nonstop flight time
Same time
time difference · heading northwest
See live KUM→ICN fares Phone-only fares on this route — call free
Flight time details
545 miles nonstop takes roughly 1h 39m 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
- KUM — Yakushima Airport · Yakushima, Japan
- 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 KUM
- TNE · New Tanegashima Airport25 mi away
- KOJ · Kagoshima Airport98 mi away
- KMI · Miyazaki Airport113 mi away
- ASJ · Amami Airport147 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 KUM from ICN?
The flight distance from Yakushima (KUM) to Seoul (ICN) is 545 miles (878 km, 474 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KUM to ICN?
A nonstop flight takes about 1h 39m 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 KUM to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KUM–ICN that never appear on search engines, with no booking fees.