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DEF to SEP: distance & flight time
Dezful (Dezful Airport) → Stephenville (Stephenville Clark Regional Airport)
7,466 mi
12,016 km · 6,488 nm
15h 6m
estimated nonstop flight time
-8.5h
time difference · heading northwest
See live DEF→SEP fares Phone-only fares on this route — call free
Flight time details
7,466 miles nonstop takes roughly 15h 6m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8.5-hour time set-back when reading arrival times on your ticket.
The two airports
- DEF — Dezful Airport · Dezful, Iran
- SEP — Stephenville Clark Regional Airport · Stephenville, 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 DEF
- KHD · Khoram Abad Airport69 mi away
- AWZ · Ahwaz Airport79 mi away
- OMI · Omidiyeh Airport129 mi away
- MRX · Mahshahr Airport137 mi away
Near SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 mi away
Frequently asked questions
How far is DEF from SEP?
The flight distance from Dezful (DEF) to Stephenville (SEP) is 7,466 miles (12,016 km, 6,488 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEF to SEP?
A nonstop flight takes about 15h 6m 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 Stephenville?
Stephenville is 8.5 hours behind Dezful.
What is the cheapest way to fly from DEF to SEP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEF–SEP that never appear on search engines, with no booking fees.