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RDR to OPO: distance & flight time
Red River (Grand Forks Air Force Base) → Porto (Francisco de Sá Carneiro Airport)
4,141 mi
6,665 km · 3,599 nm
8h 35m
estimated nonstop flight time
+6h
time difference · heading northeast
See live RDR→OPO fares Phone-only fares on this route — call free
Flight time details
4,141 miles nonstop takes roughly 8h 35m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- RDR — Grand Forks Air Force Base · Red River, 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 RDR
- GFK · Grand Forks International Airport10 mi away
- TVF · Thief River Falls Regional Airport57 mi away
- PMB · Pembina Municipal Airport68 mi away
- DVL · Devils Lake Regional Airport70 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 RDR from OPO?
The flight distance from Red River (RDR) to Porto (OPO) is 4,141 miles (6,665 km, 3,599 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RDR to OPO?
A nonstop flight takes about 8h 35m 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 Red River and Porto?
Porto is 6 hours ahead of Red River.
What is the cheapest way to fly from RDR to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RDR–OPO that never appear on search engines, with no booking fees.