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Cheap flight tickets from Colombo to Bangkok Suvarnabhumi

Compare Colombo to Bangkok Suvarnabhumi flight deals

Find the cheapest month or even day of the year to fly to Bangkok Suvarnabhumi

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Flight deals from Colombo to Bangkok Suvarnabhumi

Looking for a cheap last-minute deal or the best return flight from Colombo to Bangkok Suvarnabhumi Airport? If you want to travel next month, return fares start from RM1,547. Find the lowest prices on one-way and return tickets right here.
Bangkok.RM772 per passenger.Departing Fri, 17 Jul.One-way flight with AirAsia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Fri, 17 Jul, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM772, select.
Bangkok.RM823 per passenger.Departing Sat, 2 May.One-way flight with IndiGo.Outbound indirect flight with IndiGo, departs from Colombo Bandaranayake on Sat, 2 May, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM823, select.
Bangkok.RM835 per passenger.Departing Fri, 27 Nov.One-way flight with AirAsia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Fri, 27 Nov, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM835, select.
Bangkok.RM863 per passenger.Departing Sat, 8 Aug.One-way flight with Air India.Outbound indirect flight with Air India, departs from Colombo Bandaranayake on Sat, 8 Aug, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM863, select.
Bangkok.RM873 per passenger.Departing Mon, 18 Jan.One-way flight with AirAsia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Mon, 18 Jan, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM873, select.
Bangkok.RM874 per passenger.Departing Fri, 12 Jun.One-way flight with Air India.Outbound indirect flight with Air India, departs from Colombo Bandaranayake on Fri, 12 Jun, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM874, select.
Bangkok.RM882 per passenger.Departing Mon, 21 Dec.One-way flight with Air India.Outbound indirect flight with Air India, departs from Colombo Bandaranayake on Mon, 21 Dec, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM882, select.
Bangkok.RM897 per passenger.Departing Thu, 1 Oct.One-way flight with Air India.Outbound indirect flight with Air India, departs from Colombo Bandaranayake on Thu, 1 Oct, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM897, select.
Bangkok.RM898 per passenger.Departing Sun, 28 Feb.One-way flight with Air India.Outbound indirect flight with Air India, departs from Colombo Bandaranayake on Sun, 28 Feb, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM898, select.
Bangkok.RM898 per passenger.Departing Thu, 15 Apr.One-way flight with Air India.Outbound indirect flight with Air India, departs from Colombo Bandaranayake on Thu, 15 Apr, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM898, select.
Bangkok.RM898 per passenger.Departing Sat, 12 Sep.One-way flight with Air India.Outbound indirect flight with Air India, departs from Colombo Bandaranayake on Sat, 12 Sep, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM898, select.
Bangkok.RM899 per passenger.Departing Mon, 8 Mar.One-way flight with Air India.Outbound indirect flight with Air India, departs from Colombo Bandaranayake on Mon, 8 Mar, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM899, select.
Bangkok.RM1,358 per passenger.Departing Sat, 23 Jan.One-way flight with SriLankan Airlines.Outbound direct flight with SriLankan Airlines departs from Colombo Bandaranayake on Sat, 23 Jan, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM1,358, select.
Bangkok.RM1,363 per passenger.Departing Wed, 22 Jul.One-way flight with SriLankan Airlines.Outbound direct flight with SriLankan Airlines departs from Colombo Bandaranayake on Wed, 22 Jul, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM1,363, select.
Bangkok.RM1,370 per passenger.Departing Wed, 6 May.One-way flight with SriLankan Airlines.Outbound direct flight with SriLankan Airlines departs from Colombo Bandaranayake on Wed, 6 May, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM1,370, select.
Bangkok.RM1,373 per passenger.Departing Sat, 12 Sep.One-way flight with SriLankan Airlines.Outbound direct flight with SriLankan Airlines departs from Colombo Bandaranayake on Sat, 12 Sep, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From RM1,373, select.

Find the cheapest month to fly from Colombo to Bangkok Suvarnabhumi

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Colombo to Bangkok Suvarnabhumi flights are currently cheapest in July.
May
from RM823
Jun
from RM874
Jul
from RM772
Aug
from RM863
Sep
from RM898
Oct
from RM897
Nov
from RM835
Dec
from RM882
Jan
from RM873
Feb
from RM898
Mar
from RM899
Apr
from RM898

Direct flights from Colombo to Bangkok Suvarnabhumi

Colombo to Bangkok Suvarnabhumi: Alternative routes

Compare routes from Colombo to Bangkok below. You may find an airport to fly into that's cheaper, faster, or easier than Bangkok Suvarnabhumi.

Don Mueang

21km from central Bangkok
ClosestCheapest
from RM510
Search flights

Bangkok Suvarnabhumi

29km from central Bangkok
from RM772
Search flights

Colombo to Bangkok: Flight information

The things to know before you go.
Cheapest flight foundRM772
Cheapest month to flyJuly
Average flight time3 hrs, 40 mins
Most popular airlineQantas
Average flights per week98

Finding cheap flights from Colombo to Bangkok Suvarnabhumi: Frequently asked questions

The best price we found for a return flight from Colombo to Bangkok Suvarnabhumi is RM1,546. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 40 minutes is the average flight time from Colombo to Bangkok Suvarnabhumi.
Qantas, SriLankan Airlines and Finnair fly direct from Colombo to Bangkok Suvarnabhumi.
As of May 2026, there are 98 flights per week flying from Colombo to Bangkok Suvarnabhumi.
The cheapest month to fly from Colombo to Bangkok Suvarnabhumi is usually October.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Colombo to Bangkok Suvarnabhumi Airport on Friday, 16 October 2026.
Yes – the average flight time is 3 hours and 40 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bangkok Suvarnabhumi but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bangkok is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Colombo to Bangkok Suvarnabhumi International Airport (BKK): What you need to know

  • Colombo's main base, Colombo Bandaranaike International Airport (CMB), is where plenty of awesome adventures begin. Explore your departure options from here for your flight from Colombo to Bangkok Suvarnabhumi International Airport (BKK).

  • The average length of a direct Colombo to Bangkok Suvarnabhumi International Airport flight is 3 hours 35 minutes.

  • Bangkok Suvarnabhumi International Airport is located in Bangkok. The city runs on the UTC+7 timezone and is one hour 30 minutes ahead of Colombo.

  • Colombo Bandaranaike International Airport (CMB) to Bangkok Suvarnabhumi International Airport (BKK) is the most popular route. There are 24 direct weekly departures to pick from. If you prefer a later start to the day, take the last flight with SriLankan Airlines at 7:50am. Go for the first CMB to BKK departure operated by Thai Airways International at 12:55am if you want to get going earlier.

  • Arrive at the airport on time so you don't miss your flight from Colombo to BKK. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • Flying over a peak time such as February? School holidays and other popular seasons can mean longer queues at security. Play things extra safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

Airports in Colombo

Colombo Bandaranaike International Airport (CMB)

  • Colombo Bandaranaike International Airport (CMB) is a convenient option for travelling directly to your destination. Nonstop flights from Colombo to Bangkok Suvarnabhumi International Airport (BKK) can be booked from this terminal.

  • Book your direct flight from Colombo to Bangkok Suvarnabhumi International Airport with SriLankan Airlines. This popular carrier offers services from CMB.

  • The preferred choice for passengers flying between CMB and BKK is SriLankan Airlines.

  • The most reliable carrier for punctuality on this route is Thai Airways. Its services arrive as planned 78.69% of the time.

  • Stopovers are the ideal opportunity to take a break from travelling and possibly even explore a different city. When browsing cheap flights from Colombo to BKK leaving from Colombo Bandaranaike International Airport (CMB), uncheck the 'Direct flights only' box to find all potential stops. Here's where you could connect through:

    • Kuala Lumpur International Airport (KUL)

    • Singapore Changi Airport (SIN)

    • Chennai International Airport (MAA)

  • Travelling from central Colombo to CMB takes around 50 minutes by public transport. If you drive, ride-share or get a taxi, you'll cover the 32 kilometres in 40 minutes or so, depending on traffic.

  • Want a leisurely start to your holiday? Stay near Colombo Bandaranaike International Airport. Whether you have an early flight from Colombo to Bangkok Suvarnabhumi International Airport or prefer not to rush, these hotels have you covered:

  • When it comes to the on-time performance of Colombo Bandaranaike International Airport, 74% of flights arrive within the scheduled time frame.

About Bangkok Suvarnabhumi International Airport (BKK)

Getting from Bangkok Suvarnabhumi International Airport (BKK) to central Bangkok

  • From Bangkok Suvarnabhumi International Airport, central Bangkok is around 31 kilometres away. It takes about 35 minutes to get to the city centre by car.

  • If you're using public transport, expect a journey time of about 35 minutes.

How to find the cheapest flights from Colombo to Bangkok Suvarnabhumi International Airport (BKK)

  • RM772 is the lowest price for a one-way ticket from Colombo to Bangkok Suvarnabhumi International Airport. Return flights start at RM1,546. These prices may change based on demand.

  • Don't leave everything to the last minute. You're more likely to find cheap flights from Colombo to BKK if you book early. Airlines often offer some great early bird deals.

  • If you can be flexible with your travel plans, use the 'Whole month' search tool. It'll give you the lowest price in every month when searching for your Colombo to Bangkok Suvarnabhumi International Airport ticket.

  • Be the first to know about deals for plane tickets from Colombo to BKK by creating a Price Alert. We'll send you an email or push notification on the app when fares go down.

  • Tailor your trip using filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Colombo to Bangkok Suvarnabhumi International Airport.

The best time to fly from Colombo to Bangkok Suvarnabhumi International Airport (BKK)

  • October is the quietest month for flights from Colombo to Bangkok Suvarnabhumi International Airport (BKK), while February is the most popular. Pick the ideal time to visit Bangkok based on whether you prefer a laid-back vibe or a lively atmosphere.

  • Lock in a Colombo to BKK plane ticket departing in April if you want to experience the city during its warmest month. Expect temperatures in Bangkok to range from 26ºC (79ºF) to 37ºC (99ºF).

  • December sees temperatures of between 19ºC (66ºF) and 33ºC (91ºF). Look for cheap tickets from Colombo to Bangkok Suvarnabhumi International Airport around that time if you like cooler conditions.

More about Bangkok

  • After booking your flight from Colombo to Bangkok Suvarnabhumi International Airport, find a hotel that offers the right mix of comfort and location. Make one of these options your base for exploring Bangkok:

  • There are so many things to see and do in this city, it can be hard to work out where to begin. Grand Palace, Wat Phra Kaew and The Royal Place 2 are popular attractions which should feature on any well-planned Bangkok itinerary.

Explore more of Thailand

  • Bangkok is easy to fall in love with, but there are so many other parts of Thailand you should also see. About 209 kilometres northeast of Bangkok, a visit to Nakhon Ratchasima will keep you busy. Start with popular sights like Night Safari Korat, Saveone Night Market and Butterfly Park.

  • Rayong is another well-known destination in Thailand and is around 129 kilometres southeast of Bangkok. No journey is complete without visiting Saeng Chan Beach, Mae Rumphueng Beach and Mae Ramphueng Beach.

Plan the rest of your trip from Colombo to Bangkok

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.