Need help booking?
Unpublished phone-only deals available
BIS to SIR: distance & flight time
Bismarck (Bismarck Municipal Airport) → Sion (Sion Airport)
4,679 mi
7,531 km · 4,066 nm
9h 39m
estimated nonstop flight time
+7h
time difference · heading northeast
See live BIS→SIR fares Phone-only fares on this route — call free
Flight time details
4,679 miles nonstop takes roughly 9h 39m 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
- BIS — Bismarck Municipal Airport · Bismarck, 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 BIS
- MBG · Mobridge Municipal Airport86 mi away
- DIK · Dickinson Theodore Roosevelt Regional Airport97 mi away
- JMS · Jamestown Regional Airport98 mi away
- MOT · Minot International Airport106 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 BIS from SIR?
The flight distance from Bismarck (BIS) to Sion (SIR) is 4,679 miles (7,531 km, 4,066 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BIS to SIR?
A nonstop flight takes about 9h 39m 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 Bismarck and Sion?
Sion is 7 hours ahead of Bismarck.
What is the cheapest way to fly from BIS to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BIS–SIR that never appear on search engines, with no booking fees.