How far ahead should I book a flight from Colombo Bandaranaike Intl Airport to Singapore with SriLankan Airlines?

Booking with SriLankan Airlines 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Colombo Bandaranaike Intl Airport to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Colombo Bandaranaike Intl Airport to Singapore with SriLankan Airlines?

Currently, the most affordable month to book a SriLankan Airlines flight from Colombo Bandaranaike Intl Airport to Singapore in July, with an average price of AED 1,348. Conversely, traveling with SriLankan Airlines from Colombo Bandaranaike Intl Airport to Singapore in December will be the most expensive, with an average cost of AED 1,902. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

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SriLankan Airlines flights from Colombo to Singapore in 2026

Popular in	December
Cheapest in	May
Average price (all airlines)	AED 1,366

Highest demand for flights from Colombo to Singapore Changi; 9% potential price increase.

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Best time to find cheap flights from Colombo to Singapore Changi; 2% potential price drop.

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Average price for all Colombo to Singapore Changi flights (one-way and round-trip).

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The best time to book a flight to Singapore with SriLankan Airlines is 56 days before departure. On average, fares are higher if you book 52 days before departure.

Which month is the cheapest to fly Economy class from Colombo Bandaranaike Intl Airport to Singapore?

For Economy class flights, the cheapest month to fly this route is July. The most expensive months are December and June.

Best time to book a flight from Colombo to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Colombo with our price prediction graph.

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SriLankan Airlines flights from Colombo to Singapore in 2026

Popular in

Cheapest in

Average price (all airlines)

When is the best time to book a flight to Singapore with SriLankan Airlines?

The best time to book a flight to Singapore with SriLankan Airlines is 56 days before departure. On average, fares are higher if you book 52 days before departure.

Which month is the cheapest to fly Economy class from Colombo Bandaranaike Intl Airport to Singapore?

For Economy class flights, the cheapest month to fly this route is July. The most expensive months are December and June.

Rainfall in Singapore by month

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Best time to book a flight from Colombo to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Colombo with our price prediction graph.

Browse thousands of different options on Cheapflights for your next trip

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Fly from Colombo to Singapore on another airline

Consider alternative airlines that service the Singapore area. Flight routes are based on user searches made on Cheapflights and were last updated on 25 August 2026.

Other SriLankan Airlines flights from Colombo

Browse through other SriLankan Airlines flights departing from Colombo. Flight routes are based on user searches made on Cheapflights and were last updated on 25 August 2026.

Complete your trip

Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing Colombo and Singapore

Choose from other airlines serving Colombo and Singapore.

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If Singapore is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 25 August 2026.

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SriLankan Airlines flights from Colombo Bandaranaike Intl Airport to Singapore (CMB - SIN)

SriLankan Airlines flights from Colombo to Singapore in 2026

Popular in

Cheapest in

Average price (all airlines)

When is the best time to book a flight to Singapore with SriLankan Airlines?

The best time to book a flight to Singapore with SriLankan Airlines is 56 days before departure. On average, fares are higher if you book 52 days before departure.

Which month is the cheapest to fly Economy class from Colombo Bandaranaike Intl Airport to Singapore?

For Economy class flights, the cheapest month to fly this route is July. The most expensive months are December and June.

Rainfall in Singapore by month

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Best time to book a flight from Colombo to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Colombo with our price prediction graph.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Colombo to Singapore on another airline

Consider alternative airlines that service the Singapore area. Flight routes are based on user searches made on Cheapflights and were last updated on 25 August 2026.

Other SriLankan Airlines flights from Colombo

Browse through other SriLankan Airlines flights departing from Colombo. Flight routes are based on user searches made on Cheapflights and were last updated on 25 August 2026.

Complete your trip

Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing Colombo and Singapore

Choose from other airlines serving Colombo and Singapore.

Other popular destinations in Asia

If Singapore is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 25 August 2026.

See what others are saying about SriLankan Airlines

Overview

Recent reviews

100% Free

Book With Flexibility

Travel Smart