Distance From Sintra Air Base to Islamabad International Airport

The distance from Sintra Air Base () to Islamabad International Airport (ISB) is 4437 miles or 7140 kilometers or 3853 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 Sintra ( Portugal ) to Attock ( Pakistan )?

A one-way nonstop (direct) flight between Sintra and Attock takes around 10 hours 12 minutes.

Estimated flight time from Sintra Air Base, Sintra, Portugal to Islamabad International Airport, Attock, Pakistan is 10 hours 12 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 • - ISB

Kilometers		7140 km
Statute Miles		4437 miles
Nautical Miles		3853 nm
Avg. Time of Flight		10 hours 12 minutes

Sintra Air Base to Islamabad International Airport Flight Route Map - to ISB Flight Path

Location of Sintra Air Base & Islamabad International Airport is given below.
Click the map to view Sintra to Attock nonstop flight path and travel direction.

Click to see flight route on Google Map between Sintra, Portugal and Attock, Pakistan. .

Nonstop flight route between Sintra, Portugal and Attock, Pakistan.

Time Difference Between the Airports • - ISB

Time difference between Sintra (Portugal) and Attock (Pakistan) is 5 Hours.
Attock time is 5 Hours ahead of Sintra.

Location	Local Time
Sintra (Portugal)	2025-12-17, 06:44:17 WET
Attock (Pakistan)	2025-12-17, 11:44:17 PKT

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

Sintra Air Base ( / LPST) Sintra, Portugal

Destination

Islamabad International Airport (ISB / OPIS) Attock, Pakistan