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GLS to SIR: distance & flight time
Galveston (Scholes International At Galveston Airport) → Sion (Sion Airport)
5,318 mi
8,558 km · 4,621 nm
10h 54m
estimated nonstop flight time
+7h
time difference · heading northeast
See live GLS→SIR fares Phone-only fares on this route — call free
Flight time details
5,318 miles nonstop takes roughly 10h 54m 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
- GLS — Scholes International At Galveston Airport · Galveston, 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 GLS
- IAH · George Bush Intercontinental Houston Airport57 mi away
- EFD · Ellington Airport30 mi away
- HOU · William P Hobby Airport36 mi away
- LJN · Texas Gulf Coast Regional Airport38 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 GLS from SIR?
The flight distance from Galveston (GLS) to Sion (SIR) is 5,318 miles (8,558 km, 4,621 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GLS to SIR?
A nonstop flight takes about 10h 54m 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 Galveston and Sion?
Sion is 7 hours ahead of Galveston.
What is the cheapest way to fly from GLS to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GLS–SIR that never appear on search engines, with no booking fees.