Cheap flights from Colombo Bandaranaike Intl Airport to Bangkok from £149

If you don’t want to visit Bangkok Suvarnabhumi Airport in November, then you should wait until October to fly from Colombo Bandaranaike Intl Airport, when ticket prices are also cheap, with an average price of £206.

According to our data, Sunday is the cheapest day to fly to Bangkok Suvarnabhumi Airport from Colombo Bandaranaike Intl Airport. The lowest ticket price found for a Sunday departure recently was £297. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport for around £362.

According to our data, the cheapest time of day to fly to Bangkok Suvarnabhumi Airport is in the evening. momondo users have found flights departing from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport in the evening for as low as £221. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £339 on average. Flights to Bangkok Suvarnabhumi Airport from Colombo Bandaranaike Intl Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Colombo Bandaranaike Intl to Bangkok Suvarnabhumi for the best Colombo Bandaranaike Intl - Bangkok Suvarnabhumi flight prices

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Colombo Bandaranaike Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around £221 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Colombo Bandaranaike Intl Airport for as low as £186 on momondo.

There is only 1 cabin class available to choose from on Colombo Bandaranaike Intl to Bangkok Suvarnabhumi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 46% on your flight if you consider stops on a Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flight.

As of March 2026, prices for Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights are approximately 5% cheaper when compared to flights at the same time last year.

Air India is the most popular carrier operating from Colombo Bandaranaike Intl to Bangkok Suvarnabhumi

Thai AirAsia, SriLankan Airlines and Thai Airways are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Colombo Bandaranaike Intl Airport according to our data. Thai AirAsia is the first choice among our users, with 70% of people opting to fly with this airline when travelling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 5 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Colombo and Bangkok have experienced a delay on any given week. The average delay length over the past 12 months has been 103 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

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

According to our data, Thai Airways have had the fewest delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

8 flights are operational daily from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport as of March 2026. The most popular departure time for this route is 01:00, with 72% of flights per day taking off in the morning.

The number of flights available between Colombo Bandaranaike Intl Airport and Bangkok Suvarnabhumi Airport is 59 per week as of March 2026. The most frequent departure day is Fri, with 22% of weekly flights leaving on this day.