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AHN to OPO: distance & flight time
Athens (Athens Ben Epps Airport) → Porto (Francisco de Sá Carneiro Airport)
3,991 mi
6,423 km · 3,468 nm
8h 18m
estimated nonstop flight time
+5h
time difference · heading northeast
See live AHN→OPO fares Phone-only fares on this route — call free
Flight time details
3,991 miles nonstop takes roughly 8h 18m 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
- AHN — Athens Ben Epps Airport · Athens, 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 AHN
- WDR · Barrow County Airport20 mi away
- ATL · Hartsfield Jackson Atlanta International Airport67 mi away
- GVL · Lee Gilmer Memorial Airport36 mi away
- LZU · Gwinnett County Briscoe Field37 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 AHN from OPO?
The flight distance from Athens (AHN) to Porto (OPO) is 3,991 miles (6,423 km, 3,468 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from AHN to OPO?
A nonstop flight takes about 8h 18m 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 Athens and Porto?
Porto is 5 hours ahead of Athens.
What is the cheapest way to fly from AHN to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on AHN–OPO that never appear on search engines, with no booking fees.