Need help booking?
Unpublished phone-only deals available
KUM to ISN: distance & flight time
Yakushima (Yakushima Airport) → Williston (Sloulin Field International Airport)
6,055 mi
9,744 km · 5,262 nm
12h 20m
estimated nonstop flight time
-14h
time difference · heading northeast
See live KUM→ISN fares Phone-only fares on this route — call free
Flight time details
6,055 miles nonstop takes roughly 12h 20m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- KUM — Yakushima Airport · Yakushima, Japan
- ISN — Sloulin Field International Airport · Williston, United States
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 ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 mi away
Frequently asked questions
How far is KUM from ISN?
The flight distance from Yakushima (KUM) to Williston (ISN) is 6,055 miles (9,744 km, 5,262 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KUM to ISN?
A nonstop flight takes about 12h 20m 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 Yakushima and Williston?
Williston is 14 hours behind Yakushima.
What is the cheapest way to fly from KUM to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KUM–ISN that never appear on search engines, with no booking fees.