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OPO to SME: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → Somerset (Lake Cumberland Regional Airport)
3,946 mi
6,350 km · 3,429 nm
8h 12m
estimated nonstop flight time
-5h
time difference · heading northwest
See live OPO→SME fares Phone-only fares on this route — call free
Flight time details
3,946 miles nonstop takes roughly 8h 12m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- SME — Lake Cumberland Regional Airport · Somerset, United States
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 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
Near SME
- LOZ · London-Corbin Airport/Magee Field29 mi away
- LEX · Blue Grass Airport68 mi away
- GLW · Glasgow Municipal Airport74 mi away
- FFT · Capital City Airport80 mi away
Frequently asked questions
How far is OPO from SME?
The flight distance from Porto (OPO) to Somerset (SME) is 3,946 miles (6,350 km, 3,429 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to SME?
A nonstop flight takes about 8h 12m 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 Porto and Somerset?
Somerset is 5 hours behind Porto.
What is the cheapest way to fly from OPO to SME?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–SME that never appear on search engines, with no booking fees.