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DIN to SIR: distance & flight time
Dienbienphu (Dien Bien Phu Airport) → Sion (Sion Airport)
5,423 mi
8,727 km · 4,712 nm
11h 6m
estimated nonstop flight time
-5h
time difference · heading northwest
See live DIN→SIR fares Phone-only fares on this route — call free
Flight time details
5,423 miles nonstop takes roughly 11h 6m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- DIN — Dien Bien Phu Airport · Dienbienphu, Vietnam
- 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 DIN
- SQH · Na-San Airport67 mi away
- PCQ · Boun Neau Airport73 mi away
- ODY · Oudomsay Airport82 mi away
- NEU · Sam Neua Airport96 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 DIN from SIR?
The flight distance from Dienbienphu (DIN) to Sion (SIR) is 5,423 miles (8,727 km, 4,712 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DIN to SIR?
A nonstop flight takes about 11h 6m 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 Dienbienphu and Sion?
Sion is 5 hours behind Dienbienphu.
What is the cheapest way to fly from DIN to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DIN–SIR that never appear on search engines, with no booking fees.