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SEA to KUM: distance & flight time
Seattle (Seattle Tacoma International Airport) → Yakushima (Yakushima Airport)
5,414 mi
8,713 km · 4,705 nm
11h 5m
estimated nonstop flight time
+16h
time difference · heading northwest
See live SEA→KUM fares Phone-only fares on this route — call free
Flight time details
5,414 miles nonstop takes roughly 11h 5m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, 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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
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 SEA from KUM?
The flight distance from Seattle (SEA) to Yakushima (KUM) is 5,414 miles (8,713 km, 4,705 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to KUM?
A nonstop flight takes about 11h 5m 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 Seattle and Yakushima?
Yakushima is 16 hours ahead of Seattle.
What is the cheapest way to fly from SEA to KUM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–KUM that never appear on search engines, with no booking fees.