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SIN to IKA: distance & flight time
Singapore (Singapore Changi Airport) → Tehran (Imam Khomeini International Airport)
4,119 mi
6,629 km · 3,579 nm
8h 33m
estimated nonstop flight time
-4.5h
time difference · heading northwest
See live SIN→IKA fares Phone-only fares on this route — call free
Flight time details
4,119 miles nonstop takes roughly 8h 33m 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
- IKA — Imam Khomeini International Airport · Tehran, 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 IKA
- THR · Mehrabad International Airport21 mi away
- PYK · Payam International Airport31 mi away
- GZW · Qazvin Airport84 mi away
- NSH · Noshahr Airport88 mi away
Frequently asked questions
How far is SIN from IKA?
The flight distance from Singapore (SIN) to Tehran (IKA) is 4,119 miles (6,629 km, 3,579 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIN to IKA?
A nonstop flight takes about 8h 33m 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 Tehran?
Tehran is 4.5 hours behind Singapore.
What is the cheapest way to fly from SIN to IKA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIN–IKA that never appear on search engines, with no booking fees.