Cheap flights from Colombo Bandaranaike Intl Airport to Bangkok from $251

If you are unable to visit Bangkok Suvarnabhumi Airport during the month of March, then departing from Colombo Bandaranaike Intl Airport during the month October is also very affordable. Most momondo users find prices during this month for around $395.

On average, the least expensive day to fly to Bangkok Suvarnabhumi Airport from Colombo Bandaranaike Intl Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as $639. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Bangkok Suvarnabhumi Airport on Monday is $1,357.

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 $551. 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 $760 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 $463 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 $413 on momondo.

There are 2 cabin classes available to choose from on Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport 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 14% on your flight if you consider stops on a Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flight.

As of August 2026, prices for Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport flights are approximately 3% cheaper when compared to flights at the same time last year.

Vietnam Airlines and VietJet Air are the most popular carriers 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 45% of people opting to fly with this airline when travelling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 4 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 8% 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 115 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.

Friday 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 4% of their flights experiencing any sort of delay.

The number of flights available between Colombo Bandaranaike Intl Airport and Bangkok Suvarnabhumi Airport is 11 per day as of August 2026. The most frequent departure time is 01:00, with 69% of daily flights leaving in the morning.

As of August 2026, there are 82 flights per week flying from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport. The most common day of the week flights depart is Thu, with 17% of flights taking off on this day.