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ILN to SIR: distance & flight time
Wilmington (Wilmington Airpark) → Sion (Sion Airport)
4,379 mi
7,047 km · 3,805 nm
9h 3m
estimated nonstop flight time
+6h
time difference · heading northeast
See live ILN→SIR fares Phone-only fares on this route — call free
Flight time details
4,379 miles nonstop takes roughly 9h 3m 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
- ILN — Wilmington Airpark · Wilmington, 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 ILN
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 ILN from SIR?
The flight distance from Wilmington (ILN) to Sion (SIR) is 4,379 miles (7,047 km, 3,805 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ILN to SIR?
A nonstop flight takes about 9h 3m 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 Wilmington and Sion?
Sion is 6 hours ahead of Wilmington.
What is the cheapest way to fly from ILN to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ILN–SIR that never appear on search engines, with no booking fees.