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SIR to IAH: distance & flight time
Sion (Sion Airport) → Houston (George Bush Intercontinental Houston Airport)
5,302 mi
8,533 km · 4,607 nm
10h 52m
estimated nonstop flight time
-7h
time difference · heading northwest
See live SIR→IAH fares Phone-only fares on this route — call free
Flight time details
5,302 miles nonstop takes roughly 10h 52m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- IAH — George Bush Intercontinental Houston Airport · Houston, 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 IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 mi away
Frequently asked questions
How far is SIR from IAH?
The flight distance from Sion (SIR) to Houston (IAH) is 5,302 miles (8,533 km, 4,607 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to IAH?
A nonstop flight takes about 10h 52m 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 Houston?
Houston is 7 hours behind Sion.
What is the cheapest way to fly from SIR to IAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–IAH that never appear on search engines, with no booking fees.