Need help booking?
Unpublished phone-only deals available
APN to OPO: distance & flight time
Alpena (Alpena County Regional Airport) → Porto (Francisco de Sá Carneiro Airport)
3,644 mi
5,865 km · 3,167 nm
7h 37m
estimated nonstop flight time
+5h
time difference · heading northeast
See live APN→OPO fares Phone-only fares on this route — call free
Flight time details
3,644 miles nonstop takes roughly 7h 37m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- APN — Alpena County Regional Airport · Alpena, 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 APN
- OSC · Oscoda Wurtsmith Airport44 mi away
- ECA · Iosco County Airport53 mi away
- GLR · Gaylord Regional Airport56 mi away
- DRE · Drummond Island Airport65 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 APN from OPO?
The flight distance from Alpena (APN) to Porto (OPO) is 3,644 miles (5,865 km, 3,167 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from APN to OPO?
A nonstop flight takes about 7h 37m 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 Alpena and Porto?
Porto is 5 hours ahead of Alpena.
What is the cheapest way to fly from APN to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on APN–OPO that never appear on search engines, with no booking fees.