Need help booking?
Unpublished phone-only deals available
KWJ to WBU: distance & flight time
Kwangju (Gwangju Airport) → Boulder (Boulder Municipal Airport)
6,278 mi
10,104 km · 5,456 nm
12h 47m
estimated nonstop flight time
-15h
time difference · heading northeast
See live KWJ→WBU fares Phone-only fares on this route — call free
Flight time details
6,278 miles nonstop takes roughly 12h 47m 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
- KWJ — Gwangju Airport · Kwangju, South Korea
- WBU — Boulder Municipal Airport · Boulder, 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 KWJ
- MWX · Muan International Airport26 mi away
- MPK · Mokpo Heliport35 mi away
- RSU · Yeosu Airport50 mi away
- CHN · Jeon Ju Airport (G-703)55 mi away
Near WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
Frequently asked questions
How far is KWJ from WBU?
The flight distance from Kwangju (KWJ) to Boulder (WBU) is 6,278 miles (10,104 km, 5,456 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KWJ to WBU?
A nonstop flight takes about 12h 47m 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 Kwangju and Boulder?
Boulder is 15 hours behind Kwangju.
What is the cheapest way to fly from KWJ to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KWJ–WBU that never appear on search engines, with no booking fees.