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OPO to RFD: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → Rockford (Chicago Rockford International Airport)
3,981 mi
6,407 km · 3,459 nm
8h 16m
estimated nonstop flight time
-6h
time difference · heading northwest
See live OPO→RFD fares Phone-only fares on this route — call free
Flight time details
3,981 miles nonstop takes roughly 8h 16m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- RFD — Chicago Rockford International Airport · Rockford, 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 RFD
Frequently asked questions
How far is OPO from RFD?
The flight distance from Porto (OPO) to Rockford (RFD) is 3,981 miles (6,407 km, 3,459 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to RFD?
A nonstop flight takes about 8h 16m 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 Rockford?
Rockford is 6 hours behind Porto.
What is the cheapest way to fly from OPO to RFD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–RFD that never appear on search engines, with no booking fees.