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CJJ to GRM: distance & flight time
Chongju (Cheongju International Airport/Cheongju Air Base (K-59/G-513)) → Grand Marais (Grand Marais Cook County Airport)
6,145 mi
9,890 km · 5,340 nm
12h 31m
estimated nonstop flight time
-14h
time difference · heading northeast
See live CJJ→GRM fares Phone-only fares on this route — call free
Flight time details
6,145 miles nonstop takes roughly 12h 31m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- CJJ — Cheongju International Airport/Cheongju Air Base (K-59/G-513) · Chongju, South Korea
- GRM — Grand Marais Cook County Airport · Grand Marais, 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 CJJ
- OSN · Osan Air Base37 mi away
- ICN · Incheon International Airport78 mi away
- SWU · Suwon Airport45 mi away
- YEC · Yecheon Airbase48 mi away
Near GRM
- YQT · Thunder Bay Airport61 mi away
- LYU · Ely Municipal Airport67 mi away
- YIB · Atikokan Municipal Airport87 mi away
- CMX · Houghton County Memorial Airport100 mi away
Frequently asked questions
How far is CJJ from GRM?
The flight distance from Chongju (CJJ) to Grand Marais (GRM) is 6,145 miles (9,890 km, 5,340 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CJJ to GRM?
A nonstop flight takes about 12h 31m 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 Chongju and Grand Marais?
Grand Marais is 14 hours behind Chongju.
What is the cheapest way to fly from CJJ to GRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CJJ–GRM that never appear on search engines, with no booking fees.