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DTM to SIR: distance & flight time
Dortmund (Dortmund Airport) → Sion (Sion Airport)
366 mi
590 km · 318 nm
1h 26m
estimated nonstop flight time
Same time
time difference · heading south
See live DTM→SIR fares Phone-only fares on this route — call free
Flight time details
366 miles nonstop takes roughly 1h 26m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- DTM — Dortmund Airport · Dortmund, Germany
- 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 DTM
- ESS · Essen Mulheim Airport30 mi away
- DUS · Düsseldorf Airport40 mi away
- GUT · Gütersloh Air Base41 mi away
- FMO · Münster Osnabrück Airport43 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 DTM from SIR?
The flight distance from Dortmund (DTM) to Sion (SIR) is 366 miles (590 km, 318 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DTM to SIR?
A nonstop flight takes about 1h 26m 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 cheapest way to fly from DTM to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DTM–SIR that never appear on search engines, with no booking fees.