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TWF to ICN: distance & flight time
Twin Falls (Joslin Field Magic Valley Regional Airport) → Seoul (Incheon International Airport)
5,716 mi
9,199 km · 4,967 nm
11h 40m
estimated nonstop flight time
+16h
time difference · heading northwest
See live TWF→ICN fares Phone-only fares on this route — call free
Flight time details
5,716 miles nonstop takes roughly 11h 40m 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
- TWF — Joslin Field Magic Valley Regional Airport · Twin Falls, 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 TWF
- BYI · Burley Municipal Airport37 mi away
- SUN · Friedman Memorial Airport71 mi away
- MUO · Mountain Home Air Force Base80 mi away
- PIH · Pocatello Regional Airport101 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 TWF from ICN?
The flight distance from Twin Falls (TWF) to Seoul (ICN) is 5,716 miles (9,199 km, 4,967 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TWF to ICN?
A nonstop flight takes about 11h 40m 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 TWF to ICN?
Nonstop service on TWF–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 11h 40m nonstop estimate.
What is the time difference between Twin Falls and Seoul?
Seoul is 16 hours ahead of Twin Falls.
What is the cheapest way to fly from TWF to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TWF–ICN that never appear on search engines, with no booking fees.
Why are some TWF to ICN fares phone-only?
Consolidator contracts let us sell certain TWF–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.