Need help booking?
Unpublished phone-only deals available
OSN to TRR: distance & flight time
Osan (Osan Air Base) → Trinciomalee (China Bay Airport)
3,474 mi
5,591 km · 3,019 nm
7h 17m
estimated nonstop flight time
-3.5h
time difference · heading southwest
See live OSN→TRR fares Phone-only fares on this route — call free
Flight time details
3,474 miles nonstop takes roughly 7h 17m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.5-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- TRR — China Bay Airport · Trinciomalee, Sri Lanka
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 TRR
- HIM · Hingurakgoda Air Force Base36 mi away
- GIU · Sigiriya Air Force Base51 mi away
- ACJ · Anuradhapura Air Force Base54 mi away
- BTC · Batticaloa Airport67 mi away
Frequently asked questions
How far is OSN from TRR?
The flight distance from Osan (OSN) to Trinciomalee (TRR) is 3,474 miles (5,591 km, 3,019 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to TRR?
A nonstop flight takes about 7h 17m 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 Trinciomalee?
Trinciomalee is 3.5 hours behind Osan.
What is the cheapest way to fly from OSN to TRR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–TRR that never appear on search engines, with no booking fees.