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ONO to OPO: distance & flight time
Ontario (Ontario Municipal Airport) → Porto (Francisco de Sá Carneiro Airport)
5,061 mi
8,146 km · 4,398 nm
10h 23m
estimated nonstop flight time
+7h
time difference · heading northeast
See live ONO→OPO fares Phone-only fares on this route — call free
Flight time details
5,061 miles nonstop takes roughly 10h 23m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- ONO — Ontario Municipal Airport · Ontario, United States
- 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 ONO
- BOI · Boise Air Terminal/Gowen Field50 mi away
- BKE · Baker City Municipal Airport69 mi away
- MYL · McCall Municipal Airport75 mi away
- MUO · Mountain Home Air Force Base88 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 ONO from OPO?
The flight distance from Ontario (ONO) to Porto (OPO) is 5,061 miles (8,146 km, 4,398 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONO to OPO?
A nonstop flight takes about 10h 23m 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 Ontario and Porto?
Porto is 7 hours ahead of Ontario.
What is the cheapest way to fly from ONO to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONO–OPO that never appear on search engines, with no booking fees.