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IAD to KUM: distance & flight time
Washington (Washington Dulles International Airport) → Yakushima (Yakushima Airport)
7,316 mi
11,775 km · 6,358 nm
14h 49m
estimated nonstop flight time
+13h
time difference · heading northwest
See live IAD→KUM fares Phone-only fares on this route — call free
Flight time details
7,316 miles nonstop takes roughly 14h 49m gate to gate, flying northwest. 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
- IAD — Washington Dulles International Airport · Washington, United States
- KUM — Yakushima Airport · Yakushima, Japan
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 IAD
Near KUM
- TNE · New Tanegashima Airport25 mi away
- KOJ · Kagoshima Airport98 mi away
- KMI · Miyazaki Airport113 mi away
- ASJ · Amami Airport147 mi away
Frequently asked questions
How far is IAD from KUM?
The flight distance from Washington (IAD) to Yakushima (KUM) is 7,316 miles (11,775 km, 6,358 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to KUM?
A nonstop flight takes about 14h 49m 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 Washington and Yakushima?
Yakushima is 13 hours ahead of Washington.
What is the cheapest way to fly from IAD to KUM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–KUM that never appear on search engines, with no booking fees.