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HUL to OPO: distance & flight time
Houlton (Houlton International Airport) → Porto (Francisco de Sá Carneiro Airport)
2,904 mi
4,674 km · 2,524 nm
6h 10m
estimated nonstop flight time
+5h
time difference · heading east
See live HUL→OPO fares Phone-only fares on this route — call free
Flight time details
2,904 miles nonstop takes roughly 6h 10m gate to gate, flying east. 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
- HUL — Houlton International Airport · Houlton, 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 HUL
- PQI · Northern Maine Regional Airport at Presque Isle41 mi away
- CAR · Caribou Municipal Airport53 mi away
- YFC · Fredericton Airport63 mi away
- YSL · St Leonard Airport71 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 HUL from OPO?
The flight distance from Houlton (HUL) to Porto (OPO) is 2,904 miles (4,674 km, 2,524 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HUL to OPO?
A nonstop flight takes about 6h 10m 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 Houlton and Porto?
Porto is 5 hours ahead of Houlton.
What is the cheapest way to fly from HUL to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HUL–OPO that never appear on search engines, with no booking fees.