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DLS to SIR: distance & flight time
The Dalles (Columbia Gorge Regional the Dalles Municipal Airport) → Sion (Sion Airport)
5,361 mi
8,628 km · 4,659 nm
10h 59m
estimated nonstop flight time
+9h
time difference · heading northeast
See live DLS→SIR fares Phone-only fares on this route — call free
Flight time details
5,361 miles nonstop takes roughly 10h 59m 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
- DLS — Columbia Gorge Regional the Dalles Municipal Airport · The Dalles, 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 DLS
- TTD · Portland Troutdale Airport60 mi away
- PDX · Portland International Airport69 mi away
- YKM · Yakima Air Terminal McAllister Field72 mi away
- HIO · Portland Hillsboro Airport86 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 DLS from SIR?
The flight distance from The Dalles (DLS) to Sion (SIR) is 5,361 miles (8,628 km, 4,659 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DLS to SIR?
A nonstop flight takes about 10h 59m 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 The Dalles and Sion?
Sion is 9 hours ahead of The Dalles.
What is the cheapest way to fly from DLS to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DLS–SIR that never appear on search engines, with no booking fees.