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OPO to RIV: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → Riverside (March ARB Airport)
5,547 mi
8,928 km · 4,821 nm
11h 21m
estimated nonstop flight time
-8h
time difference · heading northwest
See live OPO→RIV fares Phone-only fares on this route — call free
Flight time details
5,547 miles nonstop takes roughly 11h 21m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- RIV — March ARB Airport · Riverside, 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 RIV
- RAL · Riverside Municipal Airport12 mi away
- SBD · San Bernardino International Airport15 mi away
- RBK · French Valley Airport22 mi away
- ONT · Ontario International Airport23 mi away
Frequently asked questions
How far is OPO from RIV?
The flight distance from Porto (OPO) to Riverside (RIV) is 5,547 miles (8,928 km, 4,821 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to RIV?
A nonstop flight takes about 11h 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 Porto and Riverside?
Riverside is 8 hours behind Porto.
What is the cheapest way to fly from OPO to RIV?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–RIV that never appear on search engines, with no booking fees.