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HOU to SIR: distance & flight time
Houston (William P Hobby Airport) → Sion (Sion Airport)
5,316 mi
8,556 km · 4,620 nm
10h 53m
estimated nonstop flight time
+7h
time difference · heading northeast
See live HOU→SIR fares Phone-only fares on this route — call free
Flight time details
5,316 miles nonstop takes roughly 10h 53m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- HOU — William P Hobby Airport · Houston, United States
- 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 HOU
- IAH · George Bush Intercontinental Houston Airport24 mi away
- EFD · Ellington Airport8 mi away
- AAP · Andrau Airpark19 mi away
- SGR · Sugar Land Regional Airport23 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 HOU from SIR?
The flight distance from Houston (HOU) to Sion (SIR) is 5,316 miles (8,556 km, 4,620 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HOU to SIR?
A nonstop flight takes about 10h 53m 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 Houston and Sion?
Sion is 7 hours ahead of Houston.
What is the cheapest way to fly from HOU to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HOU–SIR that never appear on search engines, with no booking fees.