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SIN to DEF: distance & flight time
Singapore (Singapore Changi Airport) → Dezful (Dezful Airport)
4,194 mi
6,750 km · 3,644 nm
8h 41m
estimated nonstop flight time
-4.5h
time difference · heading northwest
See live SIN→DEF fares Phone-only fares on this route — call free
Flight time details
4,194 miles nonstop takes roughly 8h 41m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4.5-hour time set-back when reading arrival times on your ticket.
The two airports
- SIN — Singapore Changi Airport · Singapore, Singapore
- DEF — Dezful Airport · Dezful, 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 SIN
- QPG · Paya Lebar Air Base6 mi away
- XSP · Seletar Airport10 mi away
- BTH · Hang Nadim International Airport18 mi away
- TGA · Tengah Air Base20 mi away
Near DEF
- KHD · Khoram Abad Airport69 mi away
- AWZ · Ahwaz Airport79 mi away
- OMI · Omidiyeh Airport129 mi away
- MRX · Mahshahr Airport137 mi away
Frequently asked questions
How far is SIN from DEF?
The flight distance from Singapore (SIN) to Dezful (DEF) is 4,194 miles (6,750 km, 3,644 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIN to DEF?
A nonstop flight takes about 8h 41m 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 Singapore and Dezful?
Dezful is 4.5 hours behind Singapore.
What is the cheapest way to fly from SIN to DEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIN–DEF that never appear on search engines, with no booking fees.