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SIR to HDN: distance & flight time
Sion (Sion Airport) → Hayden (Yampa Valley Airport)
5,218 mi
8,397 km · 4,534 nm
10h 42m
estimated nonstop flight time
-8h
time difference · heading northwest
See live SIR→HDN fares Phone-only fares on this route — call free
Flight time details
5,218 miles nonstop takes roughly 10h 42m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- HDN — Yampa Valley Airport · Hayden, 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 HDN
- SBS · Steamboat Springs Bob Adams Field19 mi away
- EGE · Eagle County Regional Airport60 mi away
- SAA · Shively Field70 mi away
- RIL · Garfield County Regional Airport71 mi away
Frequently asked questions
How far is SIR from HDN?
The flight distance from Sion (SIR) to Hayden (HDN) is 5,218 miles (8,397 km, 4,534 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to HDN?
A nonstop flight takes about 10h 42m 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 Hayden?
Hayden is 8 hours behind Sion.
What is the cheapest way to fly from SIR to HDN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–HDN that never appear on search engines, with no booking fees.