Need help booking?
Unpublished phone-only deals available
OSN to SRY: distance & flight time
Osan (Osan Air Base) → Dasht-e-naz (Dasht-e Naz Airport)
3,969 mi
6,388 km · 3,449 nm
8h 15m
estimated nonstop flight time
-5.5h
time difference · heading northwest
See live OSN→SRY fares Phone-only fares on this route — call free
Flight time details
3,969 miles nonstop takes roughly 8h 15m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5.5-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- SRY — Dasht-e Naz Airport · Dasht-e-naz, Iran
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 SRY
- GBT · Gorgan Airport69 mi away
- NSH · Noshahr Airport96 mi away
- RUD · Shahroud Airport107 mi away
- THR · Mehrabad International Airport124 mi away
Frequently asked questions
How far is OSN from SRY?
The flight distance from Osan (OSN) to Dasht-e-naz (SRY) is 3,969 miles (6,388 km, 3,449 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to SRY?
A nonstop flight takes about 8h 15m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from OSN to SRY?
Nonstop service on OSN–SRY depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 8h 15m nonstop estimate.
What is the time difference between Osan and Dasht-e-naz?
Dasht-e-naz is 5.5 hours behind Osan.
What is the cheapest way to fly from OSN to SRY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–SRY that never appear on search engines, with no booking fees.
Why are some OSN to SRY fares phone-only?
Consolidator contracts let us sell certain OSN–SRY tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.