Distance From South 80 Field to Francisco de Sá Carneiro Airport

The distance from South 80 Field () to Francisco de Sá Carneiro Airport (OPO) is 4154 miles or 6685 kilometers or 3608 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 Crystal Lake ( United States ) to Porto ( Portugal )?

A one-way nonstop (direct) flight between Crystal Lake and Porto takes around 9 hours 33 minutes.

Estimated flight time from South 80 Field, Crystal Lake, United States to Francisco de Sá Carneiro Airport, Porto, Portugal is 9 hours 33 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 • - OPO

Kilometers		6685 km
Statute Miles		4154 miles
Nautical Miles		3608 nm
Avg. Time of Flight		9 hours 33 minutes

South 80 Field to Francisco de Sá Carneiro Airport Flight Route Map - to OPO Flight Path

Location of South 80 Field & Francisco de Sá Carneiro Airport is given below.
Click the map to view Crystal Lake to Porto nonstop flight path and travel direction.

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

Nonstop flight route between Crystal Lake, United States and Porto, Portugal.

Time Difference Between the Airports • - OPO

Time difference between Crystal Lake (United States) and Porto (Portugal) is 6 Hours.
Porto time is 6 Hours ahead of Crystal Lake.

Location	Local Time
Crystal Lake (United States)	2026-05-04, 17:26:32 CDT
Porto (Portugal)	2026-05-04, 23:26:32 WEST

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

South 80 Field ( / 2IA9) Crystal Lake, United States

Destination

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