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DEN to ICN: distance & flight time
Denver (Denver International Airport) → Seoul (Incheon International Airport)
6,189 mi
9,960 km · 5,378 nm
12h 36m
estimated nonstop flight time
+15h
time difference · heading northwest
See live DEN→ICN fares Phone-only fares on this route — call free
Flight time details
6,189 miles nonstop takes roughly 12h 36m 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
- DEN — Denver International Airport · Denver, United States
- ICN — Incheon 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 DEN
- BFK · Buckley Air Force Base12 mi away
- APA · Centennial Airport22 mi away
- BJC · Rocky Mountain Metropolitan Airport24 mi away
- WBU · Boulder Municipal Airport32 mi away
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
Frequently asked questions
How far is DEN from ICN?
The flight distance from Denver (DEN) to Seoul (ICN) is 6,189 miles (9,960 km, 5,378 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEN to ICN?
A nonstop flight takes about 12h 36m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from DEN to ICN?
Nonstop service on DEN–ICN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 12h 36m nonstop estimate.
What is the time difference between Denver and Seoul?
Seoul is 15 hours ahead of Denver.
What is the cheapest way to fly from DEN to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEN–ICN that never appear on search engines, with no booking fees.
Why are some DEN to ICN fares phone-only?
Consolidator contracts let us sell certain DEN–ICN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.