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DED to SIR: distance & flight time
Dehra Dun (Dehradun Airport) → Sion (Sion Airport)
3,869 mi
6,227 km · 3,362 nm
8h 3m
estimated nonstop flight time
-3.5h
time difference · heading northwest
See live DED→SIR fares Phone-only fares on this route — call free
Flight time details
3,869 miles nonstop takes roughly 8h 3m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.5-hour time set-back when reading arrival times on your ticket.
The two airports
- DED — Dehradun Airport · Dehra Dun, India
- 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 DED
- IXC · Chandigarh Airport89 mi away
- SLV · Shimla Airport90 mi away
- PGH · Pantnagar Airport111 mi away
- DEL · Indira Gandhi International Airport130 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 DED from SIR?
The flight distance from Dehra Dun (DED) to Sion (SIR) is 3,869 miles (6,227 km, 3,362 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DED to SIR?
A nonstop flight takes about 8h 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 Dehra Dun and Sion?
Sion is 3.5 hours behind Dehra Dun.
What is the cheapest way to fly from DED to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DED–SIR that never appear on search engines, with no booking fees.