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MSO to SIR: distance & flight time
Missoula (Missoula International Airport) → Sion (Sion Airport)
5,091 mi
8,193 km · 4,424 nm
10h 27m
estimated nonstop flight time
+8h
time difference · heading northeast
See live MSO→SIR fares Phone-only fares on this route — call free
Flight time details
5,091 miles nonstop takes roughly 10h 27m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- MSO — Missoula International Airport · Missoula, 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 MSO
- FCA · Glacier Park International Airport97 mi away
- BTM · Bert Mooney Airport101 mi away
- HLN · Helena Regional Airport102 mi away
- SMN · Lemhi County Airport124 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 MSO from SIR?
The flight distance from Missoula (MSO) to Sion (SIR) is 5,091 miles (8,193 km, 4,424 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MSO to SIR?
A nonstop flight takes about 10h 27m 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 Missoula and Sion?
Sion is 8 hours ahead of Missoula.
What is the cheapest way to fly from MSO to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MSO–SIR that never appear on search engines, with no booking fees.