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DEC to OPO: distance & flight time
Decatur (Decatur Airport) → Porto (Francisco de Sá Carneiro Airport)
4,050 mi
6,518 km · 3,519 nm
8h 24m
estimated nonstop flight time
+6h
time difference · heading northeast
See live DEC→OPO fares Phone-only fares on this route — call free
Flight time details
4,050 miles nonstop takes roughly 8h 24m 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
- DEC — Decatur Airport · Decatur, 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 DEC
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 DEC from OPO?
The flight distance from Decatur (DEC) to Porto (OPO) is 4,050 miles (6,518 km, 3,519 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEC to OPO?
A nonstop flight takes about 8h 24m 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 Decatur and Porto?
Porto is 6 hours ahead of Decatur.
What is the cheapest way to fly from DEC to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEC–OPO that never appear on search engines, with no booking fees.