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IST to SIR: distance & flight time
Istanbul (Istanbul Airport) → Sion (Sion Airport)
1,119 mi
1,800 km · 972 nm
2h 54m
estimated nonstop flight time
-1h
time difference · heading northwest
See live IST→SIR fares Phone-only fares on this route — call free
Flight time details
1,119 miles nonstop takes roughly 2h 54m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- IST — Istanbul Airport · Istanbul, Turkey
- 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 IST
- ISL · Atatürk International Airport21 mi away
- SAW · Sabiha Gökçen International Airport39 mi away
- TEQ · Tekirdağ Çorlu Airport44 mi away
- BTZ · Bursa Airport73 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 IST from SIR?
The flight distance from Istanbul (IST) to Sion (SIR) is 1,119 miles (1,800 km, 972 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IST to SIR?
A nonstop flight takes about 2h 54m 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 Istanbul and Sion?
Sion is 1 hour behind Istanbul.
What is the cheapest way to fly from IST to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IST–SIR that never appear on search engines, with no booking fees.