Distance From Greeley–Weld County Airport to Humberto Delgado Airport (Lisbon Portela Airport), GXY - LIS Distance

The distance from Greeley–Weld County Airport (GXY) to Humberto Delgado Airport (Lisbon Portela Airport) (LIS) is 4806 miles or 7734 kilometers or 4173 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 Greeley ( United States ) to Lisbon ( Portugal )?

A one-way nonstop (direct) flight between Greeley and Lisbon takes around 11 hours 2 minutes.

Estimated flight time from Greeley–Weld County Airport, Greeley, United States to Humberto Delgado Airport (Lisbon Portela Airport), Lisbon, Portugal is 11 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 • GXY - LIS

Kilometers		7734 km
Statute Miles		4806 miles
Nautical Miles		4173 nm
Avg. Time of Flight		11 hours 2 minutes

Greeley–Weld County Airport to Humberto Delgado Airport (Lisbon Portela Airport) Flight Route Map - GXY to LIS Flight Path

Location of Greeley–Weld County Airport & Humberto Delgado Airport (Lisbon Portela Airport) is given below.
Click the map to view Greeley to Lisbon nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • GXY - LIS

Time difference between Greeley (United States) and Lisbon (Portugal) is 7 Hours.
Lisbon time is 7 Hours ahead of Greeley.

Location	Local Time
Greeley (United States)	2026-06-20, 05:16:40 MDT
Lisbon (Portugal)	2026-06-20, 12:16:40 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

Greeley–Weld County Airport (GXY / KGXY) Greeley, United States

Destination

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