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GDW to SIR: distance & flight time
Gladwin (Gladwin Zettel Memorial Airport) → Sion (Sion Airport)
4,211 mi
6,777 km · 3,659 nm
8h 43m
estimated nonstop flight time
+6h
time difference · heading northeast
See live GDW→SIR fares Phone-only fares on this route — call free
Flight time details
4,211 miles nonstop takes roughly 8h 43m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- GDW — Gladwin Zettel Memorial Airport · Gladwin, 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 GDW
- HTL · Roscommon County - Blodgett Memorial Airport29 mi away
- MBS · MBS International Airport36 mi away
- AMN · Gratiot Community Airport46 mi away
- ECA · Iosco County Airport57 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 GDW from SIR?
The flight distance from Gladwin (GDW) to Sion (SIR) is 4,211 miles (6,777 km, 3,659 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GDW to SIR?
A nonstop flight takes about 8h 43m 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 Gladwin and Sion?
Sion is 6 hours ahead of Gladwin.
What is the cheapest way to fly from GDW to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GDW–SIR that never appear on search engines, with no booking fees.