Need help booking?
Unpublished phone-only deals available
JMS to SIR: distance & flight time
Jamestown (Jamestown Regional Airport) → Sion (Sion Airport)
4,602 mi
7,406 km · 3,999 nm
9h 29m
estimated nonstop flight time
+7h
time difference · heading northeast
See live JMS→SIR fares Phone-only fares on this route — call free
Flight time details
4,602 miles nonstop takes roughly 9h 29m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- JMS — Jamestown Regional Airport · Jamestown, United States
- 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 JMS
- DVL · Devils Lake Regional Airport83 mi away
- FAR · Hector International Airport88 mi away
- RDR · Grand Forks Air Force Base93 mi away
- BIS · Bismarck Municipal Airport98 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 JMS from SIR?
The flight distance from Jamestown (JMS) to Sion (SIR) is 4,602 miles (7,406 km, 3,999 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from JMS to SIR?
A nonstop flight takes about 9h 29m 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 Jamestown and Sion?
Sion is 7 hours ahead of Jamestown.
What is the cheapest way to fly from JMS to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on JMS–SIR that never appear on search engines, with no booking fees.