Distance From Gatlinburg-Pigeon Forge Airport to Francisco de Sá Carneiro Airport, GKT - OPO Distance

The distance from Gatlinburg-Pigeon Forge Airport (GKT) to Francisco de Sá Carneiro Airport (OPO) is 3935 miles or 6332 kilometers or 3417 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Sevierville ( United States ) to Porto ( Portugal )?

A one-way nonstop (direct) flight between Sevierville and Porto takes around 9 hours 2 minutes.

Estimated flight time from Gatlinburg-Pigeon Forge Airport, Sevierville, United States to Francisco de Sá Carneiro Airport, Porto, Portugal is 9 hours 2 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • GKT - OPO

Kilometers		6332 km
Statute Miles		3935 miles
Nautical Miles		3417 nm
Avg. Time of Flight		9 hours 2 minutes

Gatlinburg-Pigeon Forge Airport to Francisco de Sá Carneiro Airport Flight Route Map - GKT to OPO Flight Path

Location of Gatlinburg-Pigeon Forge Airport & Francisco de Sá Carneiro Airport is given below.
Click the map to view Sevierville to Porto nonstop flight path and travel direction.

Click to see flight route on Google Map between Sevierville, United States and Porto, Portugal. .

Nonstop flight route between Sevierville, United States and Porto, Portugal.

Time Difference Between the Airports • GKT - OPO

Time difference between Sevierville (United States) and Porto (Portugal) is 4 Hours.
Porto time is 4 Hours ahead of Sevierville.

Location	Local Time
Sevierville (United States)	2026-03-23, 09:12:10 EDT
Porto (Portugal)	2026-03-23, 13:12:10 WET

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Gatlinburg-Pigeon Forge Airport (GKT / KGKT) Sevierville, United States

Destination

Francisco de Sá Carneiro Airport (OPO / LPPR) Porto, Portugal