A random search for flights from London Heathrow (LHR) to Singapore Changi (SIN) shows:
OPTION 1: 12hr 30min to 12hr 55min by a nonstop flight operated by British Airways, Singapore Airlines or Qantas Airways.
Flight Duration: 12hr 30min to 12hr 55min
OPTION 2: 15hr 05min via Mumbai (BOM) (Cheapest Option, fare almost half of Option 1)
LHR - BOM Air India Flt 130 Dep 08:45am 12Mar,Fri
BOM - SIN Air India Flt 442 Dep 12:10am 13Mar,Sat
Flight Duration: 13hr 55min; Layover Time: 1hr 10min; Total Trip Time: 15hr 05min
A typical flight from Singapore to London, England takes about 13 to 14 hours.
Approx 13 hours from London to Singapore (direct flight)
It would take about 8 hours to fly from Singapore to Sydney.
Brisbane (BNE) to London (LON)Flight Duration * 24 hours 5 mins * Via Singapore Changi Apt, Singapore (SIN)
13 hours
The flight distance from Singapore to London, United Kingdom is: 6,741 miles / 10,849 km
The flight will take approximately 12 hours, allowing time for taxi / take-off and landing.
I did a flight so Singapore recently Was about 21 hours from London Heathrow so your looking at around 20-21 hours :)
flight time from heathrow to Singapore
There are different flight numbers for British airways from London to Sydney.Here they are BA9 London-Bangkok-Sydney BA10 Sydney-Bangkok-London how long is the stop in Bangkok BA15 London-Singapore-Sydney BA16 Sydney-Singapore-London
how long is the flight from London to Bahamas
About 11-12 hours I recall