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OSN to ECA: distance & flight time
Osan (Osan Air Base) → East Tawas (Iosco County Airport)
6,499 mi
10,459 km · 5,647 nm
13h 13m
estimated nonstop flight time
-13h
time difference · heading north
See live OSN→ECA fares Phone-only fares on this route — call free
Flight time details
6,499 miles nonstop takes roughly 13h 13m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- ECA — Iosco County Airport · East Tawas, 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 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 ECA
- OSC · Oscoda Wurtsmith Airport10 mi away
- APN · Alpena County Regional Airport53 mi away
- GDW · Gladwin Zettel Memorial Airport57 mi away
- HTL · Roscommon County - Blodgett Memorial Airport62 mi away
Frequently asked questions
How far is OSN from ECA?
The flight distance from Osan (OSN) to East Tawas (ECA) is 6,499 miles (10,459 km, 5,647 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to ECA?
A nonstop flight takes about 13h 13m 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 East Tawas?
East Tawas is 13 hours behind Osan.
What is the cheapest way to fly from OSN to ECA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–ECA that never appear on search engines, with no booking fees.