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ICN to APA: distance & flight time
Seoul (Incheon International Airport) → Denver (Centennial Airport)
6,199 mi
9,976 km · 5,386 nm
12h 37m
estimated nonstop flight time
-15h
time difference · heading northeast
See live ICN→APA fares Phone-only fares on this route — call free
Flight time details
6,199 miles nonstop takes roughly 12h 37m 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
- ICN — Incheon International Airport · Seoul, South Korea
- APA — Centennial Airport · Denver, 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 ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
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
Frequently asked questions
How far is ICN from APA?
The flight distance from Seoul (ICN) to Denver (APA) is 6,199 miles (9,976 km, 5,386 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ICN to APA?
A nonstop flight takes about 12h 37m 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 Denver?
Denver is 15 hours behind Seoul.
What is the cheapest way to fly from ICN to APA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ICN–APA that never appear on search engines, with no booking fees.