251 € Cheap Flights from Colombo 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? Find the lowest prices on one-way and return tickets right here.

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 September.

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.

Colombo to Bangkok: Flight information

The things to know before you go.
Cheapest flight found251 €
Cheapest month to flySeptember
Average flight time3 hrs, 37 mins
Most popular airlineMyanmar Airways International
Average flights per week186

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 251 €. 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 37 minutes is the average flight time from Colombo to Bangkok Suvarnabhumi.
Myanmar Airways International, Air Seychelles and Qantas fly direct from Colombo to Bangkok Suvarnabhumi.
As of September 2025, there are 186 flights per week flying from Colombo to Bangkok Suvarnabhumi.
The cheapest month to fly from Colombo to Bangkok Suvarnabhumi is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Colombo to Bangkok Suvarnabhumi Airport on Sunday, 21 September 2025.
Yes – the average flight time is 3 hours and 37 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.

Travelling from Colombo to Suvarnabhumi Airport (BKK): What you need to know

  • Colombo's main base, Bandaranaike International Airport (CMB), is where many great holidays begin. Explore your departure options from here for your flight from Colombo to Suvarnabhumi Airport (BKK).

  • Bangkok is one hour 30 minutes ahead of Colombo. Suvarnabhumi Airport is located in Bangkok, which runs on the UTC+7 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport on time to board your flight from Colombo to BKK.

  • During high season, expect extended wait times and show up earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international journeys.

Airports in Colombo

Colombo Ratmalana Airport (RML)

  • The journey from central Colombo to RML takes about 1 hour 15 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 16 kilometres in 40 minutes or so, depending on traffic conditions.

  • Want an easy start to your break? Stay near Colombo Ratmalana Airport. Whether you've booked an early flight from Colombo to Suvarnabhumi Airport or just don't like being rushed, these hotels offer the perfect solution:

Bandaranaike International Airport (CMB)

  • Think about kicking off your journey from Bandaranaike International Airport (CMB). You can book a direct Colombo to Suvarnabhumi Airport (BKK) plane ticket with departures from this hub.

  • Board your direct flight from Colombo to BKK with SriLankan Airlines. This is one of the main carriers operating this route out of CMB.

  • On the CMB to BKK route, SriLankan Airlines is the go-to airline for most travellers on this route.

  • The carrier with the best on-time performance is Thai Airways International. Its Bandaranaike International Airport to Suvarnabhumi Airport flights land without delay 78.69% of the time.

  • Turn your flight into part of the adventure with a stopover on your flight from Colombo to Suvarnabhumi Airport. Here's where you can connect between Bandaranaike International Airport and BKK:

    • Kuala Lumpur International Airport (KUL)

    • Changi International Airport (SIN)

    • Chennai Airport (MAA)

  • Using public transport, you can travel from central Colombo to CMB in around 1 hour 30 minutes. The terminal is roughly 32 kilometres away, and making the trip by car takes approximately 40 minutes.

  • Want to enjoy an extra night away before catching your Colombo to BKK flight? Relax in a hotel near Bandaranaike International Airport before your break officially begins. These stays are calling your name:

  • 75.71% of flights taking off from Bandaranaike International Airport arrive according to schedule.

About Suvarnabhumi Airport (BKK)

Getting from Suvarnabhumi Airport (BKK) to central Bangkok

  • Suvarnabhumi Airport is about 27 kilometres from central Bangkok. How long it'll take to get there in a car hire or cab will depend on the time of day. Do some research before your trip.

  • It typically takes 1 hour 5 minutes if you're using public transport.

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

  • Currently, 119 € is the lowest price we've found for a one-way ticket from Colombo to Suvarnabhumi Airport. The cheapest price for a return flight is 251 €. Keep in mind fares may change due to availability at the time of booking.

  • To find cheap flights from Colombo to BKK, book ahead. Airlines generally offer lower prices when flights are first released.

  • The 'Whole month' search tool will show you the cheapest Colombo to Suvarnabhumi Airport tickets throughout the entire month. It's a good way to find a bargain if your dates aren't set in stone.

  • Never miss a deal on plane tickets from Colombo to BKK by setting up a Price Alert. We'll send you an email or notification on the app when prices go down.

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

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

  • Think about the kind of experience you want when deciding the best time to fly. April is the quietest month to go to Bangkok. July is when most people book flights from Colombo to Suvarnabhumi Airport (BKK), which may be ideal if you'd rather travel when it's busy.

  • Before locking in your Colombo to BKK plane ticket, consider the kind of weather you prefer. April is the warmest month in Bangkok, with temperatures ranging from 26ºC (79ºF) to 37ºC (99ºF).

  • If you want cooler conditions, look for a cheap ticket from Colombo to Suvarnabhumi Airport in December when temperatures are between 19ºC (66ºF) and 33ºC (91ºF).

More about Bangkok

Explore more of Thailand

  • You've seen Bangkok, now it's time to explore other corners of Thailand. Travel around 209 kilometres north-east to Nakhon Ratchasima to tick off its top attractions. From Night Safari Korat to Saveone Night Market and Butterfly Park, there's plenty to keep you on the go.

  • Around 129 kilometres south-east of Bangkok, Rayong is another essential stop in Thailand. Experience the best of this destination with a visit to Saeng Chan Beach, Mae Rumphueng Beach and Mae Ramphueng Beach.

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