Need help booking?
Unpublished phone-only deals available
SSN to ALN: distance & flight time
Seoul East (Seoul Air Base (K-16)) → Alton/St Louis (St Louis Regional Airport)
6,658 mi
10,715 km · 5,786 nm
13h 31m
estimated nonstop flight time
—
time difference · heading northeast
See live SSN→ALN fares Phone-only fares on this route — call free
Flight time details
6,658 miles nonstop takes roughly 13h 31m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
- ALN — St Louis Regional Airport · Alton/St Louis, United States
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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Near ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is SSN from ALN?
The flight distance from Seoul East (SSN) to Alton/St Louis (ALN) 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 SSN to ALN?
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 cheapest way to fly from SSN to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SSN–ALN that never appear on search engines, with no booking fees.