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THR to SIR: distance & flight time
Teheran (Mehrabad International Airport) → Sion (Sion Airport)
2,374 mi
3,820 km · 2,063 nm
5h 7m
estimated nonstop flight time
-1.5h
time difference · heading northwest
See live THR→SIR fares Phone-only fares on this route — call free
Flight time details
2,374 miles nonstop takes roughly 5h 7m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.5-hour time set-back when reading arrival times on your ticket.
The two airports
- THR — Mehrabad International Airport · Teheran, Iran
- SIR — Sion Airport · Sion, Switzerland
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 SIR
- AOT · Aosta Airport33 mi away
- QLS · Lausanne-Blécherette Airport41 mi away
- ZIN · Interlaken Air Base41 mi away
- MVV · Megève Airport43 mi away
Frequently asked questions
How far is THR from SIR?
The flight distance from Teheran (THR) to Sion (SIR) is 2,374 miles (3,820 km, 2,063 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THR to SIR?
A nonstop flight takes about 5h 7m 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 Sion?
Sion is 1.5 hours behind Teheran.
What is the cheapest way to fly from THR to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THR–SIR that never appear on search engines, with no booking fees.