Distance From Grass Roots Airport to Humberto Delgado Airport (Lisbon Portela Airport)

The distance from Grass Roots Airport () to Humberto Delgado Airport (Lisbon Portela Airport) (LIS) is 4580 miles or 7370 kilometers or 3977 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 Alexandria ( United States ) to Lisbon ( Portugal )?

A one-way nonstop (direct) flight between Alexandria and Lisbon takes around 10 hours 31 minutes.

Estimated flight time from Grass Roots Airport, Alexandria, United States to Humberto Delgado Airport (Lisbon Portela Airport), Lisbon, Portugal is 10 hours 31 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		7370 km
Statute Miles		4580 miles
Nautical Miles		3977 nm
Avg. Time of Flight		10 hours 31 minutes

Grass Roots Airport to Humberto Delgado Airport (Lisbon Portela Airport) Flight Route Map - to LIS Flight Path

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

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

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

Time Difference Between the Airports • - LIS

Time difference between Alexandria (United States) and Lisbon (Portugal) is 6 Hours.
Lisbon time is 6 Hours ahead of Alexandria.

Location	Local Time
Alexandria (United States)	2026-11-01, 14:38:30 CST
Lisbon (Portugal)	2026-11-01, 20:38:30 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

Grass Roots Airport ( / 05LS) Alexandria, United States

Destination

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