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OSN to SEN: distance & flight time
Osan (Osan Air Base) → Southend (Southend Airport)
5,507 mi
8,863 km · 4,786 nm
11h 16m
estimated nonstop flight time
-8h
time difference · heading northwest
See live OSN→SEN fares Phone-only fares on this route — call free
Flight time details
5,507 miles nonstop takes roughly 11h 16m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- SEN — Southend Airport · Southend, United Kingdom
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 OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
Near SEN
- LGW · London Gatwick Airport48 mi away
- LHR · London Heathrow Airport50 mi away
- RCS · Rochester Airport17 mi away
- LCY · London City Airport28 mi away
Frequently asked questions
How far is OSN from SEN?
The flight distance from Osan (OSN) to Southend (SEN) is 5,507 miles (8,863 km, 4,786 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to SEN?
A nonstop flight takes about 11h 16m 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 Osan and Southend?
Southend is 8 hours behind Osan.
What is the cheapest way to fly from OSN to SEN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–SEN that never appear on search engines, with no booking fees.