Need help booking?
Unpublished phone-only deals available
PDX to SIR: distance & flight time
Portland (Portland International Airport) → Sion (Sion Airport)
5,401 mi
8,692 km · 4,693 nm
11h 3m
estimated nonstop flight time
+9h
time difference · heading northeast
See live PDX→SIR fares Phone-only fares on this route — call free
Flight time details
5,401 miles nonstop takes roughly 11h 3m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- PDX — Portland International Airport · Portland, 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 PDX
- TTD · Portland Troutdale Airport10 mi away
- HIO · Portland Hillsboro Airport17 mi away
- KLS · Southwest Washington Regional Airport39 mi away
- SLE · Salem Municipal Airport/McNary Field51 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 PDX from SIR?
The flight distance from Portland (PDX) to Sion (SIR) is 5,401 miles (8,692 km, 4,693 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PDX to SIR?
A nonstop flight takes about 11h 3m 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 Portland and Sion?
Sion is 9 hours ahead of Portland.
What is the cheapest way to fly from PDX to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PDX–SIR that never appear on search engines, with no booking fees.