Cheap flights from Sydney to Colombo from $399

In general, August is the cheapest month to fly from Sydney to Colombo Bandaranaike Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $940. If you are unable to visit Colombo Bandaranaike Intl Airport during the month of August, then departing from Sydney during the month May is also very affordable. Most momondo users find prices during this month for around $968.

Our data shows that Wednesday is the least expensive day to fly to Colombo Bandaranaike Intl Airport. Tickets to fly out on this day can be as low as $992. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Sydney to Colombo Bandaranaike Intl Airport for around $1,122.

Fly from Sydney Kingsford Smith to Colombo Bandaranaike Intl for the best Sydney Kingsford Smith - Colombo Bandaranaike Intl flight prices

You are more likely to see cheaper flights to Colombo Bandaranaike Intl Airport from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Colombo Bandaranaike Intl Airport for around $1,161 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colombo Bandaranaike Intl Airport from Sydney for as low as $1,043 on momondo.

There are 3 cabin classes available to choose from on Sydney Kingsford Smith to Colombo Bandaranaike Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of April 2026, prices for Sydney to Colombo Bandaranaike Intl Airport flights are approximately 2% cheaper when compared to flights at the same time last year.

Historically, on average around 43% of flights between Sydney and Colombo have experienced a delay on any given week. The average delay length over the past 12 months has been 134 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, SriLankan Airlines have had the fewest delays on this route over the last 12 months, with about 43% of their flights experiencing any sort of delay.

Singapore (SIN) was the most common stop: 56% of momondo users choosing one-stop flights on this route connected there.

Flights via Kuala Lumpur (KUL) offer the lowest average return price of $1,059.

Flights connecting via Bangkok (BKK) have the shortest average one-way travel time: 15h 01m.

Bangkok (BKK) has the shortest average stopover time for this route: 2h 18m.