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PHN to OPO: distance & flight time
Port Huron (St Clair County International Airport) → Porto (Francisco de Sá Carneiro Airport)
3,661 mi
5,891 km · 3,181 nm
7h 39m
estimated nonstop flight time
+5h
time difference · heading northeast
See live PHN→OPO fares Phone-only fares on this route — call free
Flight time details
3,661 miles nonstop takes roughly 7h 39m 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
- PHN — St Clair County International Airport · Port Huron, 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 PHN
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 PHN from OPO?
The flight distance from Port Huron (PHN) to Porto (OPO) is 3,661 miles (5,891 km, 3,181 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to OPO?
A nonstop flight takes about 7h 39m 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 Port Huron and Porto?
Porto is 5 hours ahead of Port Huron.
What is the cheapest way to fly from PHN to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–OPO that never appear on search engines, with no booking fees.