Cheap flights from Colombo Bandaranaike Intl Airport to Bangkok from $134

The month of October is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Colombo Bandaranaike Intl Airport, with most prices found around $276. The month of November is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Colombo Bandaranaike Intl Airport averaging around $276.

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Monday when prices can be found for as low as $433. This is often the case because there is less demand to fly during this day of the week. On the other hand, Wednesday is the most expensive day to depart from Colombo Bandaranaike Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $491.

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is in the evening. Flights from Colombo Bandaranaike Intl Airport to Bangkok Suvarnabhumi Airport during this time can be as low as $291. In the morning is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $440 per ticket.

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 $299 when searching weeks out. 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 $276 on momondo.

There are 3 cabin classes 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 43% 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 8% cheaper when compared to flights at the same time last year.

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

Thai AirAsia, SriLankan Airlines and AirAsia 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 traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 6 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 in the evening have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.

Kuala Lumpur (KUL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Kuala Lumpur (KUL) offer the lowest average round-trip price of $317.

Flights connecting via Kuala Lumpur (KUL) have the shortest average one-way travel time: 8h 07m.

Kuala Lumpur (KUL) has the shortest average layover time for this route: 3h 59m.

10 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 1:00AM, with 81% of flights per day taking off in the morning.

As of March 2026, 72 flights take off from Colombo Bandaranaike Intl Airport and land in Bangkok Suvarnabhumi Airport each week. The most common flight departure day for this route is Sun, with 17% of weekly flights taking off on this day.