Distance From Dandugama Seaplane Base to Islamabad International Airport, DGM - ISB Distance

The distance from Dandugama Seaplane Base (DGM) to Islamabad International Airport (ISB) is 1882 miles or 3029 kilometers or 1634 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 Colombo ( Sri Lanka ) to Attock ( Pakistan )?

A one-way nonstop (direct) flight between Colombo and Attock takes around 4 hours 19 minutes.

Estimated flight time from Dandugama Seaplane Base, Colombo, Sri Lanka to Islamabad International Airport, Attock, Pakistan is 4 hours 19 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 • DGM - ISB

Kilometers		3029 km
Statute Miles		1882 miles
Nautical Miles		1634 nm
Avg. Time of Flight		4 hours 19 minutes

Dandugama Seaplane Base to Islamabad International Airport Flight Route Map - DGM to ISB Flight Path

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

Click to see flight route on Google Map between Colombo, Sri Lanka and Attock, Pakistan. .

Nonstop flight route between Colombo, Sri Lanka and Attock, Pakistan.

Time Difference Between the Airports • DGM - ISB

Time difference between Colombo (Sri Lanka) and Attock (Pakistan) is 0 Hours 30 Minutes.
Attock time is 0 Hours 30 Minutes behind Colombo.

Location	Local Time
Colombo (Sri Lanka)	2026-09-21, 00:39:50 +0530
Attock (Pakistan)	2026-09-21, 00:09:50 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

Dandugama Seaplane Base (DGM / ) Colombo, Sri Lanka

Destination

Islamabad International Airport (ISB / OPIS) Attock, Pakistan