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SIR to OCW: distance & flight time

Sion (Sion Airport) → Washington (Warren Field)

4,258 mi
6,853 km · 3,700 nm
8h 49m
estimated nonstop flight time
-6h
time difference · heading northwest
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Flight time details

4,258 miles nonstop takes roughly 8h 49m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.

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The two airports

Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.

Alternate airports can cut this fare

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Frequently asked questions

How far is SIR from OCW?

The flight distance from Sion (SIR) to Washington (OCW) is 4,258 miles (6,853 km, 3,700 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from SIR to OCW?

A nonstop flight takes about 8h 49m 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 Washington?

Washington is 6 hours behind Sion.

What is the cheapest way to fly from SIR to OCW?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–OCW that never appear on search engines, with no booking fees.
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