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SIR to DLS: distance & flight time
Sion (Sion Airport) → The Dalles (Columbia Gorge Regional the Dalles Municipal Airport)
5,361 mi
8,628 km · 4,659 nm
10h 59m
estimated nonstop flight time
-9h
time difference · heading northwest
See live SIR→DLS fares Phone-only fares on this route — call free
Flight time details
5,361 miles nonstop takes roughly 10h 59m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- DLS — Columbia Gorge Regional the Dalles Municipal Airport · The Dalles, United States
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 SIR
- AOT · Aosta Airport33 mi away
- QLS · Lausanne-Blécherette Airport41 mi away
- ZIN · Interlaken Air Base41 mi away
- MVV · Megève Airport43 mi away
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
Frequently asked questions
How far is SIR from DLS?
The flight distance from Sion (SIR) to The Dalles (DLS) 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 SIR to DLS?
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 Sion and The Dalles?
The Dalles is 9 hours behind Sion.
What is the cheapest way to fly from SIR to DLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–DLS that never appear on search engines, with no booking fees.