Need help booking?
Unpublished phone-only deals available
OSR to SIR: distance & flight time
Ostrava (Ostrava Leos Janáček Airport) → Sion (Sion Airport)
553 mi
890 km · 481 nm
1h 40m
estimated nonstop flight time
Same time
time difference · heading west
See live OSR→SIR fares Phone-only fares on this route — call free
Flight time details
553 miles nonstop takes roughly 1h 40m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- OSR — Ostrava Leos Janáček Airport · Ostrava, Czech Republic
- 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 OSR
- PRV · Přerov Air Base37 mi away
- ILZ · Žilina Airport39 mi away
- UHE · Kunovice Airport55 mi away
- KTW · Katowice International Airport69 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 OSR from SIR?
The flight distance from Ostrava (OSR) to Sion (SIR) is 553 miles (890 km, 481 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSR to SIR?
A nonstop flight takes about 1h 40m 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 cheapest way to fly from OSR to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSR–SIR that never appear on search engines, with no booking fees.