Need help booking?
Unpublished phone-only deals available
DEF to TNN: distance & flight time
Dezful (Dezful Airport) → Tainan (Tainan Airport)
4,363 mi
7,021 km · 3,791 nm
9h 1m
estimated nonstop flight time
+4.5h
time difference · heading east
See live DEF→TNN fares Phone-only fares on this route — call free
Flight time details
4,363 miles nonstop takes roughly 9h 1m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4.5-hour time gain when reading arrival times on your ticket.
The two airports
- DEF — Dezful Airport · Dezful, Iran
- TNN — Tainan Airport · Tainan, Taiwan
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 DEF
- KHD · Khoram Abad Airport69 mi away
- AWZ · Ahwaz Airport79 mi away
- OMI · Omidiyeh Airport129 mi away
- MRX · Mahshahr Airport137 mi away
Near TNN
- PIF · Pingtung North Airport25 mi away
- KHH · Kaohsiung International Airport27 mi away
- CYI · Chiayi Airport37 mi away
- WOT · Wang-an Airport53 mi away
Frequently asked questions
How far is DEF from TNN?
The flight distance from Dezful (DEF) to Tainan (TNN) is 4,363 miles (7,021 km, 3,791 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEF to TNN?
A nonstop flight takes about 9h 1m 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 Dezful and Tainan?
Tainan is 4.5 hours ahead of Dezful.
What is the cheapest way to fly from DEF to TNN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEF–TNN that never appear on search engines, with no booking fees.