Distance From Slater Field to Humberto Delgado Airport (Lisbon Portela Airport)

The distance from Slater Field () to Humberto Delgado Airport (Lisbon Portela Airport) (LIS) is 3503 miles or 5638 kilometers or 3042 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.

---

How long does it take to travel from Federalsburg ( United States ) to Lisbon ( Portugal )?

A one-way nonstop (direct) flight between Federalsburg and Lisbon takes around 8 hours 3 minutes.

Estimated flight time from Slater Field, Federalsburg, United States to Humberto Delgado Airport (Lisbon Portela Airport), Lisbon, Portugal is 8 hours 3 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 • - LIS

Kilometers		5638 km
Statute Miles		3503 miles
Nautical Miles		3042 nm
Avg. Time of Flight		8 hours 3 minutes

Slater Field to Humberto Delgado Airport (Lisbon Portela Airport) Flight Route Map - to LIS Flight Path

Location of Slater Field & Humberto Delgado Airport (Lisbon Portela Airport) is given below.
Click the map to view Federalsburg to Lisbon nonstop flight path and travel direction.

Click to see flight route on Google Map between Federalsburg, United States and Lisbon, Portugal. .

Nonstop flight route between Federalsburg, United States and Lisbon, Portugal.

Time Difference Between the Airports • - LIS

Time difference between Federalsburg (United States) and Lisbon (Portugal) is 5 Hours.
Lisbon time is 5 Hours ahead of Federalsburg.

Location	Local Time
Federalsburg (United States)	2026-11-01, 05:34:54 EST
Lisbon (Portugal)	2026-11-01, 10:34:54 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

Slater Field ( / 00MD) Federalsburg, United States

Destination

Humberto Delgado Airport (Lisbon Portela Airport) (LIS / LPPT) Lisbon, Portugal