Need help booking?
Unpublished phone-only deals available
SIR to BYI: distance & flight time
Sion (Sion Airport) → Burley (Burley Municipal Airport)
5,321 mi
8,563 km · 4,623 nm
10h 54m
estimated nonstop flight time
—
time difference · heading northwest
See live SIR→BYI fares Phone-only fares on this route — call free
Flight time details
5,321 miles nonstop takes roughly 10h 54m gate to gate, flying northwest. 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
- SIR — Sion Airport · Sion, Switzerland
- BYI — Burley Municipal Airport · Burley, United States
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 SIR
- AOT · Aosta Airport33 mi away
- QLS · Lausanne-Blécherette Airport41 mi away
- ZIN · Interlaken Air Base41 mi away
- MVV · Megève Airport43 mi away
Near BYI
- TWF · Joslin Field Magic Valley Regional Airport37 mi away
- PIH · Pocatello Regional Airport65 mi away
- SUN · Friedman Memorial Airport72 mi away
- IDA · Idaho Falls Regional Airport109 mi away
Frequently asked questions
How far is SIR from BYI?
The flight distance from Sion (SIR) to Burley (BYI) is 5,321 miles (8,563 km, 4,623 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to BYI?
A nonstop flight takes about 10h 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 cheapest way to fly from SIR to BYI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–BYI that never appear on search engines, with no booking fees.