Cheap flights from Colombo to Bangkok from $312

If you are unable to visit Bangkok Suvarnabhumi Airport during the month of October, then departing from Colombo during the month November is also very affordable. Most momondo users find prices during this month for around $388.

On average, the least expensive day to fly to Bangkok Suvarnabhumi Airport from Colombo is on a Saturday. momondo users have found tickets for Saturday departures for as low as $696. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Bangkok Suvarnabhumi Airport on Wednesday is $1,321.

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 to Bangkok Suvarnabhumi Airport in the evening for as low as $766. 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 $1,023 on average. Flights to Bangkok Suvarnabhumi Airport from Colombo 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 - Bangkok Suvarnabhumi flight prices

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Colombo when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $419 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 for as low as $389 on momondo.

There are 2 cabin classes available to choose from on Colombo to Bangkok Suvarnabhumi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Malaysia Airlines and China Eastern are the most popular carriers operating from Colombo 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 according to our data. Thai AirAsia is the first choice among our users, with 68% of people opting to fly with this airline when travelling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 3 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 105 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.

As of February 2026, 9 flights take off from Colombo and land in Bangkok Suvarnabhumi Airport each day. The most common flight departure time for this route is 01:00, with 81% of daily flights taking off in the morning.

68 flights are operational weekly from Colombo to Bangkok Suvarnabhumi Airport as of February 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.