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OPO to SNY: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → Sidney (Sidney Municipal-Lloyd W Carr Field)
4,628 mi
7,449 km · 4,022 nm
9h 33m
estimated nonstop flight time
-7h
time difference · heading northwest
See live OPO→SNY fares Phone-only fares on this route — call free
Flight time details
4,628 miles nonstop takes roughly 9h 33m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- SNY — Sidney Municipal-Lloyd W Carr Field · Sidney, 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 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
Near SNY
- STK · Sterling Municipal Airport37 mi away
- BFF · Western Neb. Rgnl/William B. Heilig Airport62 mi away
- AKO · Colorado Plains Regional Airport65 mi away
- AIA · Alliance Municipal Airport66 mi away
Frequently asked questions
How far is OPO from SNY?
The flight distance from Porto (OPO) to Sidney (SNY) is 4,628 miles (7,449 km, 4,022 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to SNY?
A nonstop flight takes about 9h 33m 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 Porto and Sidney?
Sidney is 7 hours behind Porto.
What is the cheapest way to fly from OPO to SNY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–SNY that never appear on search engines, with no booking fees.