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GMP to CPR: distance & flight time
Seoul (Gimpo International Airport) → Casper (Casper-Natrona County International Airport)
5,950 mi
9,576 km · 5,171 nm
12h 8m
estimated nonstop flight time
-15h
time difference · heading northeast
See live GMP→CPR fares Phone-only fares on this route — call free
Flight time details
5,950 miles nonstop takes roughly 12h 8m 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
- GMP — Gimpo International Airport · Seoul, South Korea
- 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 GMP
- ICN · Incheon International Airport20 mi away
- SSN · Seoul Air Base (K-16)19 mi away
- SWU · Suwon Airport25 mi away
- OSN · Osan Air Base35 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 GMP from CPR?
The flight distance from Seoul (GMP) to Casper (CPR) is 5,950 miles (9,576 km, 5,171 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GMP to CPR?
A nonstop flight takes about 12h 8m 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 Seoul and Casper?
Casper is 15 hours behind Seoul.
What is the cheapest way to fly from GMP to CPR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GMP–CPR that never appear on search engines, with no booking fees.