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SIR to SAN: distance & flight time
Sion (Sion Airport) → San Diego (San Diego International Airport)
5,978 mi
9,621 km · 5,195 nm
12h 11m
estimated nonstop flight time
-9h
time difference · heading northwest
See live SIR→SAN fares Phone-only fares on this route — call free
Flight time details
5,978 miles nonstop takes roughly 12h 11m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- SAN — San Diego International Airport · San Diego, 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 SAN
Frequently asked questions
How far is SIR from SAN?
The flight distance from Sion (SIR) to San Diego (SAN) is 5,978 miles (9,621 km, 5,195 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to SAN?
A nonstop flight takes about 12h 11m 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 San Diego?
San Diego is 9 hours behind Sion.
What is the cheapest way to fly from SIR to SAN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–SAN that never appear on search engines, with no booking fees.