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KUM to IAD: distance & flight time
Yakushima (Yakushima Airport) → Washington (Washington Dulles International Airport)
7,316 mi
11,775 km · 6,358 nm
14h 49m
estimated nonstop flight time
-13h
time difference · heading north
See live KUM→IAD fares Phone-only fares on this route — call free
Flight time details
7,316 miles nonstop takes roughly 14h 49m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- KUM — Yakushima Airport · Yakushima, Japan
- IAD — Washington Dulles International Airport · Washington, 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
Frequently asked questions
How far is KUM from IAD?
The flight distance from Yakushima (KUM) to Washington (IAD) 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 KUM to IAD?
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 Yakushima and Washington?
Washington is 13 hours behind Yakushima.
What is the cheapest way to fly from KUM to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KUM–IAD that never appear on search engines, with no booking fees.