Well to Melbourne, Australia the flight is approximately 22-23 hours.
The average flight time from London Heathrow Airport to Australia is 18 hours, 59 minutes.
The total flight time is approximately 21 to 21.5 hours, depending on layovers, delays and aircraft type, etc.
flight time from heathrow to Singapore
Three
the flight time from Paris to heathrow is 50 min to one houre
Arrives in Heathrow so look at http://www.heathrowairport.com/
The flight time from Oslo, Norway to London Heathrow Airport is about 1 hour, 27 minutes.
The average flight time from London Heathrow Airport to Toulouse, France is 1 hour, 6 minutes.
About an hour.
The average flight time from London Heathrow Airport to Philadelphia International Airport is 7 hours, 5 minutes.
The flight time is 6 hours.
The flight time is 8 hours, 1 minute.
The average flight time from London Heathrow Airport to Lima, Peru is 12 hours, 36 minutes.