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OKJ to CPR: distance & flight time
Okayama (Okayama Airport) → Casper (Casper-Natrona County International Airport)
5,861 mi
9,432 km · 5,093 nm
11h 58m
estimated nonstop flight time
-15h
time difference · heading northeast
See live OKJ→CPR fares Phone-only fares on this route — call free
Flight time details
5,861 miles nonstop takes roughly 11h 58m 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
- OKJ — Okayama Airport · Okayama, 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 OKJ
- TAK · Takamatsu Airport39 mi away
- TTJ · Tottori Airport56 mi away
- HIJ · Hiroshima Airport58 mi away
- TKS · Tokushima Airport/JMSDF Air Base61 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 OKJ from CPR?
The flight distance from Okayama (OKJ) to Casper (CPR) is 5,861 miles (9,432 km, 5,093 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKJ to CPR?
A nonstop flight takes about 11h 58m 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 Okayama and Casper?
Casper is 15 hours behind Okayama.
What is the cheapest way to fly from OKJ to CPR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKJ–CPR that never appear on search engines, with no booking fees.