Cheap flights from Bangkok to Colombo from $171

In general, June is the cheapest month to fly from Bangkok to Colombo Bandaranaike Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $391. If you are unable to visit Colombo Bandaranaike Intl Airport during the month of June, then departing from Bangkok during the month November is also very affordable. Most momondo users find prices during this month for around $409.

Our data shows that Monday is the least expensive day to fly to Colombo Bandaranaike Intl Airport. Tickets to fly out on this day can be as low as $473. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Bangkok to Colombo Bandaranaike Intl Airport for around $650.

Our most recent data shows that the best time of day to fly to Colombo Bandaranaike Intl Airport is in the evening. Flights from Bangkok to Colombo Bandaranaike Intl Airport during this time can be as low as $373. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $651 on average. Flights to Colombo Bandaranaike Intl Airport from Bangkok in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Colombo Bandaranaike Intl Airport from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Colombo Bandaranaike Intl Airport for around $476 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 Bangkok for as low as $388 on momondo.

There are 2 cabin classes available to choose from on Bangkok 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.

Historically, on average around 16% of flights between Bangkok and Colombo have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

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

Thursday 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, Thai Airways have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

9 flights are operational daily from Bangkok to Colombo Bandaranaike Intl Airport as of March 2026. The most popular departure time for this route is 09:00, with 42% of flights per day taking off at midday.

As of March 2026, there are 66 flights per week flying from Bangkok to Colombo Bandaranaike Intl Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.