About 10 and a half hours.
A flight from Heathrow to Adelaide would take about 21 hours.
It takes about 8 hours flight from islamabad to London heathrow.
The flight time is 2 hours, 41 minutes.
13 hours
This trip would take 12 hours by plane.
This trip would take 15 hours by plane.
The flight time from London Heathrow Airport to Athens, Greece is: 3 hours, 30 minutes
The flight will take approximately 12 hours, allowing time for taxi / take-off and landing.
There are no direct flights from Manchester to Lagos Nigeria. You will need to take a flight from Manchester to London Heathrow which takes about 30 minutes, and then an interconnecting flight from Heathrow to Lagos, which is about 7 hours long. That combined with the Manchester to London flight will take about 7 hours and 30 minutes in total.
A non-stop flight from Miami, Florida, to Heathrow Airport in London, England, would take about 8 hours and 15 minutes. A one stop flight could take up to 15 hours and 25 minutes or more.
It will take about 6 hours and 40 minutes.
Around 2½ hours I would say, 30min give or take.