Cheap Flights from Colombo (CMB) to Singapore (SIN) from HK$2,121~

Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between Colombo International Airport and Singapore Airport start from HK$3,336. Book today to secure the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.

We understand that things crop up unexpectedly, so we've made it as hassle-free as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Colombo International Airport to Changi Airport flights, you'll see a "no change fees" filter for you to select.

Around 2,800 kilometers separates Seeduwa - Katunayake and Singapore, so pack some in-flight entertainment to keep you occupied for a couple of hours. That novel you've yet to start will do the trick.

One airline that services the route from CMB to SIN is SriLankan Airlines (UL). It offers 30 flights a month. Offering 17 flights every month on this route, Singapore Airlines (SQ) is another traveler favorite.

Last-minute planners can occasionally find a bargain, with some of the cheapest airfares from CMB to Changi Airport (SIN) arising a few weeks before the departure date. If you'd rather plan ahead, Expedia compares and updates all the best flight deals frequently — as early as a year in advance in some cases. It depends on the carrier though, as not every airline releases prices that far in advance.