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HTL to OPO: distance & flight time
Houghton Lake (Roscommon County - Blodgett Memorial Airport) → Porto (Francisco de Sá Carneiro Airport)
3,715 mi
5,978 km · 3,228 nm
7h 45m
estimated nonstop flight time
+5h
time difference · heading northeast
See live HTL→OPO fares Phone-only fares on this route — call free
Flight time details
3,715 miles nonstop takes roughly 7h 45m 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
- HTL — Roscommon County - Blodgett Memorial Airport · Houghton Lake, 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 HTL
- GDW · Gladwin Zettel Memorial Airport29 mi away
- GLR · Gaylord Regional Airport45 mi away
- TVC · Cherry Capital Airport52 mi away
- ECA · Iosco County Airport62 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 HTL from OPO?
The flight distance from Houghton Lake (HTL) to Porto (OPO) is 3,715 miles (5,978 km, 3,228 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HTL to OPO?
A nonstop flight takes about 7h 45m 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 Houghton Lake and Porto?
Porto is 5 hours ahead of Houghton Lake.
What is the cheapest way to fly from HTL to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HTL–OPO that never appear on search engines, with no booking fees.