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SIR to OPO: distance & flight time
Sion (Sion Airport) → Porto (Francisco de Sá Carneiro Airport)
868 mi
1,397 km · 754 nm
2h 21m
estimated nonstop flight time
-1h
time difference · heading west
See live SIR→OPO fares Phone-only fares on this route — call free
Flight time details
868 miles nonstop takes roughly 2h 21m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
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 OPO
- BGZ · Braga Municipal Aerodrome26 mi away
- VRL · Vila Real Airport50 mi away
- VSE · Aerodromo Goncalves Lobato (Viseu Airport)55 mi away
- VGO · Vigo Airport68 mi away
Frequently asked questions
How far is SIR from OPO?
The flight distance from Sion (SIR) to Porto (OPO) is 868 miles (1,397 km, 754 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to OPO?
A nonstop flight takes about 2h 21m 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 Porto?
Porto is 1 hour behind Sion.
What is the cheapest way to fly from SIR to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–OPO that never appear on search engines, with no booking fees.