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HDM to OSN: distance & flight time
Hamadan (Hamadan Airport) → Osan (Osan Air Base)
4,257 mi
6,850 km · 3,699 nm
8h 49m
estimated nonstop flight time
+5.5h
time difference · heading northeast
See live HDM→OSN fares Phone-only fares on this route — call free
Flight time details
4,257 miles nonstop takes roughly 8h 49m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5.5-hour time gain when reading arrival times on your ticket.
The two airports
- HDM — Hamadan Airport · Hamadan, Iran
- OSN — Osan Air Base · Osan, 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 HDM
- KSH · Shahid Ashrafi Esfahani Airport87 mi away
- AJK · Arak Airport89 mi away
- SDG · Sanandaj Airport91 mi away
- KHD · Khoram Abad Airport100 mi away
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
Frequently asked questions
How far is HDM from OSN?
The flight distance from Hamadan (HDM) to Osan (OSN) is 4,257 miles (6,850 km, 3,699 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HDM to OSN?
A nonstop flight takes about 8h 49m 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 Hamadan and Osan?
Osan is 5.5 hours ahead of Hamadan.
What is the cheapest way to fly from HDM to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HDM–OSN that never appear on search engines, with no booking fees.