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KUM to CPR: distance & flight time
Yakushima (Yakushima Airport) → Casper (Casper-Natrona County International Airport)
6,213 mi
9,999 km · 5,399 nm
12h 39m
estimated nonstop flight time
-15h
time difference · heading northeast
See live KUM→CPR fares Phone-only fares on this route — call free
Flight time details
6,213 miles nonstop takes roughly 12h 39m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- KUM — Yakushima Airport · Yakushima, Japan
- CPR — Casper-Natrona County International Airport · Casper, 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 CPR
- RWL · Rawlins Municipal Airport/Harvey Field85 mi away
- RIW · Riverton Regional Airport101 mi away
- SAA · Shively Field103 mi away
- WRL · Worland Municipal Airport104 mi away
Frequently asked questions
How far is KUM from CPR?
The flight distance from Yakushima (KUM) to Casper (CPR) is 6,213 miles (9,999 km, 5,399 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KUM to CPR?
A nonstop flight takes about 12h 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 time difference between Yakushima and Casper?
Casper is 15 hours behind Yakushima.
What is the cheapest way to fly from KUM to CPR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KUM–CPR that never appear on search engines, with no booking fees.