take a flight and find out?
About 11 hours
approx 2 Hours and 58 minutes
About 14 hours ...
A direct flight takes around 4 hrs 15 mins to 4 hrs 30 mins.
I know that Cebu Pacific fly between them.
5 hours and 1 minute
Flight time is 10 hours 15 minutes
The big ones
3hr 30min to 3hr 50min Singapore (SIN) to Colombo (CMB) by a nonstop flight operated by Srilankan Airlines, Emirates Airlines or Singapore Airlines.
Silkair and Cebu Pacific. For more info, go to the link provided
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