Need help booking?
Unpublished phone-only deals available
STL to SSN: distance & flight time
St. Louis (St Louis Lambert International Airport) → Seoul East (Seoul Air Base (K-16))
6,658 mi
10,715 km · 5,786 nm
13h 31m
estimated nonstop flight time
+14h
time difference · heading northwest
See live STL→SSN fares Phone-only fares on this route — call free
Flight time details
6,658 miles nonstop takes roughly 13h 31m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- SSN — Seoul Air Base (K-16) · Seoul East, 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 STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Near SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is STL from SSN?
The flight distance from St. Louis (STL) to Seoul East (SSN) is 6,658 miles (10,715 km, 5,786 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to SSN?
A nonstop flight takes about 13h 31m 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 St. Louis and Seoul East?
Seoul East is 14 hours ahead of St. Louis.
What is the cheapest way to fly from STL to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–SSN that never appear on search engines, with no booking fees.