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RKS to RSU: distance & flight time
Rock Springs (Southwest Wyoming Regional Airport) → Yeosu (Yeosu Airport)
6,052 mi
9,739 km · 5,259 nm
12h 20m
estimated nonstop flight time
+16h
time difference · heading northwest
See live RKS→RSU fares Phone-only fares on this route — call free
Flight time details
6,052 miles nonstop takes roughly 12h 20m 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
- RKS — Southwest Wyoming Regional Airport · Rock 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 RKS
- FBR · Fort Bridger Airport71 mi away
- VEL · Vernal Regional Airport83 mi away
- LND · Hunt Field86 mi away
- BPI · Miley Memorial Field87 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 RKS from RSU?
The flight distance from Rock Springs (RKS) to Yeosu (RSU) is 6,052 miles (9,739 km, 5,259 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RKS to RSU?
A nonstop flight takes about 12h 20m 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 RKS to RSU?
Nonstop service on RKS–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 20m nonstop estimate.
What is the time difference between Rock Springs and Yeosu?
Yeosu is 16 hours ahead of Rock Springs.
What is the cheapest way to fly from RKS to RSU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RKS–RSU that never appear on search engines, with no booking fees.
Why are some RKS to RSU fares phone-only?
Consolidator contracts let us sell certain RKS–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.