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THR to REP: distance & flight time
Teheran (Mehrabad International Airport) → Siem-reap (Siem Reap International Airport)
3,590 mi
5,777 km · 3,119 nm
7h 30m
estimated nonstop flight time
+3.5h
time difference · heading east
See live THR→REP fares Phone-only fares on this route — call free
Flight time details
3,590 miles nonstop takes roughly 7h 30m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.5-hour time gain when reading arrival times on your ticket.
The two airports
- THR — Mehrabad International Airport · Teheran, Iran
- REP — Siem Reap International Airport · Siem-reap, Cambodia
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 THR
- IKA · Imam Khomeini International Airport21 mi away
- PYK · Payam International Airport28 mi away
- NSH · Noshahr Airport68 mi away
- GZW · Qazvin Airport80 mi away
Near REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Frequently asked questions
How far is THR from REP?
The flight distance from Teheran (THR) to Siem-reap (REP) is 3,590 miles (5,777 km, 3,119 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THR to REP?
A nonstop flight takes about 7h 30m 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 Teheran and Siem-reap?
Siem-reap is 3.5 hours ahead of Teheran.
What is the cheapest way to fly from THR to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THR–REP that never appear on search engines, with no booking fees.