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COS to RSU: distance & flight time
Colorado Springs (City of Colorado Springs Municipal Airport) → Yeosu (Yeosu Airport)
6,349 mi
10,217 km · 5,517 nm
12h 55m
estimated nonstop flight time
+16h
time difference · heading northwest
See live COS→RSU fares Phone-only fares on this route — call free
Flight time details
6,349 miles nonstop takes roughly 12h 55m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- COS — City of Colorado Springs Municipal Airport · Colorado Springs, United States
- RSU — Yeosu Airport · Yeosu, 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 COS
- FCS · Butts AAF (Fort Carson) Air Field9 mi away
- DEN · Denver International Airport73 mi away
- PUB · Pueblo Memorial Airport37 mi away
- APA · Centennial Airport53 mi away
Near RSU
- HIN · Sacheon Air Base/Airport31 mi away
- KWJ · Gwangju Airport50 mi away
- CHF · Jinhae Airbase/Airport (G-813/K-10)64 mi away
- MPK · Mokpo Heliport70 mi away
Frequently asked questions
How far is COS from RSU?
The flight distance from Colorado Springs (COS) to Yeosu (RSU) is 6,349 miles (10,217 km, 5,517 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from COS to RSU?
A nonstop flight takes about 12h 55m 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 COS to RSU?
Nonstop service on COS–RSU 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 55m nonstop estimate.
What is the time difference between Colorado Springs and Yeosu?
Yeosu is 16 hours ahead of Colorado Springs.
What is the cheapest way to fly from COS to RSU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on COS–RSU that never appear on search engines, with no booking fees.
Why are some COS to RSU fares phone-only?
Consolidator contracts let us sell certain COS–RSU 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.