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SIR to CSM: distance & flight time
Sion (Sion Airport) → Clinton (Clinton Sherman Airport)
5,189 mi
8,351 km · 4,509 nm
10h 38m
estimated nonstop flight time
-7h
time difference · heading northwest
See live SIR→CSM fares Phone-only fares on this route — call free
Flight time details
5,189 miles nonstop takes roughly 10h 38m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- CSM — Clinton Sherman Airport · Clinton, 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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 mi away
Frequently asked questions
How far is SIR from CSM?
The flight distance from Sion (SIR) to Clinton (CSM) is 5,189 miles (8,351 km, 4,509 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to CSM?
A nonstop flight takes about 10h 38m 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 Sion and Clinton?
Clinton is 7 hours behind Sion.
What is the cheapest way to fly from SIR to CSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–CSM that never appear on search engines, with no booking fees.