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ROI to SIR: distance & flight time
Roi Et (Roi Et Airport) → Sion (Sion Airport)
5,719 mi
9,204 km · 4,970 nm
11h 41m
estimated nonstop flight time
-5h
time difference · heading northwest
See live ROI→SIR fares Phone-only fares on this route — call free
Flight time details
5,719 miles nonstop takes roughly 11h 41m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- ROI — Roi Et Airport · Roi Et, Thailand
- 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 ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 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 ROI from SIR?
The flight distance from Roi Et (ROI) to Sion (SIR) is 5,719 miles (9,204 km, 4,970 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ROI to SIR?
A nonstop flight takes about 11h 41m 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 Roi Et and Sion?
Sion is 5 hours behind Roi Et.
What is the cheapest way to fly from ROI to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ROI–SIR that never appear on search engines, with no booking fees.