Need help booking?
Unpublished phone-only deals available
APA to GMP: distance & flight time
Denver (Centennial Airport) → Seoul (Gimpo International Airport)
6,182 mi
9,950 km · 5,372 nm
12h 35m
estimated nonstop flight time
+15h
time difference · heading northwest
See live APA→GMP fares Phone-only fares on this route — call free
Flight time details
6,182 miles nonstop takes roughly 12h 35m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- APA — Centennial Airport · Denver, United States
- GMP — Gimpo International Airport · Seoul, South Korea
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 APA
- DEN · Denver International Airport22 mi away
- BFK · Buckley Air Force Base10 mi away
- BJC · Rocky Mountain Metropolitan Airport27 mi away
- WBU · Boulder Municipal Airport38 mi away
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
Frequently asked questions
How far is APA from GMP?
The flight distance from Denver (APA) to Seoul (GMP) is 6,182 miles (9,950 km, 5,372 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from APA to GMP?
A nonstop flight takes about 12h 35m 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 Denver and Seoul?
Seoul is 15 hours ahead of Denver.
What is the cheapest way to fly from APA to GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on APA–GMP that never appear on search engines, with no booking fees.