C$240 Cheap Flights from Don Mueang (DMK) to Colombo (CMBA)

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Flight deals from Don Mueang to Colombo

Looking for a cheap last-minute deal or the best return flight from Don Mueang Airport to Colombo? If you want to travel next month, return fares start from C$497. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Don Mueang to Colombo

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Don Mueang to Colombo flights are currently cheapest in August.

Which airlines fly from Don Mueang to Colombo?

Bangkok to Colombo: Flight information

The things to know before you go.
Cheapest flight foundC$240
Cheapest month to flyAugust
Average flight time3 hrs, 20 mins
Most popular airlineThai AirAsia
Average flights per week8

Finding cheap flights from Don Mueang to Colombo: Frequently asked questions

There are 5 airports in Colombo: Kelaniya, Colombo Ratmalana, Colombo Bandaranayake, Bentota River, and Katugastota.
The best price we found for a return flight from Don Mueang to Colombo is C$475. 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 20 minutes is the average flight time from Don Mueang to Colombo.
Thai AirAsia flies direct from Don Mueang to Colombo.
As of June 2026, there are 16 flights per week flying from Don Mueang to Colombo.
The cheapest month to fly from Don Mueang to Colombo is usually September.
If you're flying from Don Mueang Airport, the cheapest airport near Colombo is Colombo Bandaranayake – which is 27.5 km away from the centre of Colombo. We've found flights into this airport from C$475.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Don Mueang Airport to Colombo on Wednesday, September 2, 2026.
Yes – the average flight time is 3 hours and 20 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 Colombo 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 Colombo is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 27°C. May is typically the warmest month in Colombo, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is July, with temperatures averaging 25°C. The rainiest month is November.
Currently, Thai AirAsia offers the cheapest flight tickets to Colombo.

Travelling from Don Mueang International Airport (DMK) to Colombo: what you need to know

  • Approximately 3 hours 33 minutes is how long you can expect to be travelling on a direct flight from Don Mueang International Airport to Colombo.

  • Colombo is 1 hour 30 minutes behind Bangkok, where Don Mueang International Airport is located. Colombo operates on the UTC+5:30 timezone.

  • The busiest route is from Don Mueang International Airport (DMK) to Bandaranaike International Airport (CMB). Choose from 8 services every week between these two airports. If you'd like to get on your way as soon as you can, the earliest flight from DMK to CMB is the 19:55 Thai AirAsia service. If you prefer to travel later, the final departure is at 20:20 with Thai AirAsia.

  • To ensure you get on your flight from DMK to Colombo, leave plenty of time to check in and find your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • Flying during a peak time such as August? Public holidays and other popular periods can mean longer queues at check-in and security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • You can catch a nonstop flight from Don Mueang International Airport to Colombo that lands at Bandaranaike International Airport (CMB).

  • Check out the promotions from Thai AirAsia. This carrier has direct flights from Don Mueang International Airport to Colombo.

  • We make it a breeze to find a flight from DMK to Colombo with a stopover. To see your options, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to tour the city of your choice. Major stopovers include:

    • Kempegowda International Airport (BLR)

    • Changi International Airport (SIN)

    • Kuala Lumpur International Airport (KUL)

  • You'll need an e-visa for Sri Lanka if you have a passport from Thailand and are visiting for tourism purposes. Travel documentation and visa requirements change frequently. So before you book your cheap ticket from Don Mueang International Airport to Colombo, check with your airline and your destination country's local embassy or consulate for the latest updates.

  • Located around 27 kilometres from the centre of Bangkok, DMK can be reached in about 30 minutes by car (depending on traffic). The same journey by public transport will take roughly 1 hour and 5 minutes.

  • After a stress-free start to your journey? Stay near DMK. Whether you're taking an early flight from Don Mueang International Airport to Colombo or just don't like being rushed, these hotels are just the thing:

How to find the cheapest flights from Don Mueang International Airport (DMK) to Colombo

  • C$240 is the lowest price for a one-way ticket from Don Mueang International Airport to Colombo. A return flight starts at C$475. These fares may change depending on demand and availability.

  • Book 9 months before you travel. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from DMK to Colombo.

  • May is the cheapest month for tickets from Don Mueang International Airport to Colombo. If you need to travel at a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • Snapping up a cheap ticket from DMK to Colombo couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when the price has fallen.

  • Use the filters to tailor your flights from Don Mueang International Airport to Colombo. Pick your preferred departure and arrival times, number of stops and airlines. Or sort your results by 'Cheapest' to get the best deals.

Airports in Colombo

Colombo Ratmalana Airport (RML)

  • Colombo Ratmalana Airport (RML) is around 16 kilometres from central Colombo. With your own car rental or if you're catching a cab, the drive is around 39 minutes.

  • When travelling by public transport, expect a journey of roughly 1 hour and 16 minutes.

  • If you're arriving on a late flight from Don Mueang International Airport to Colombo, few things beat the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and sleeping not long after at one of these hotels near RML:

Bandaranaike International Airport (CMB)

  • The centre of Colombo is located around 32 kilometres from Bandaranaike International Airport (CMB). After your flight from Don Mueang International Airport to Colombo has hit the runway and you've made your way out of the airport, expect a drive of around 39 minutes.

  • You can also travel using public transport, which typically takes 1 hour and 31 minutes.

  • Place the 'Do not disturb' sign on your door and rest at a hotel near CMB. Here are a few options where you can tuck yourself in after your flight from DMK to Colombo:

Best time to go to Colombo

  • Carefully consider your travel dates before booking your flight from Don Mueang International Airport to Colombo. The city buzzes during high season, but hotel prices are typically higher and major attractions can get crowded. Visit Colombo in the off-season if you like a quieter vibe.

  • Before locking in your flight from Don Mueang International Airport to Colombo, think about the type of weather you enjoy. March is the warmest month in Colombo, with the temperature ranging from 24ºC to 33ºC.

  • Look for cheap flights from DMK to Colombo in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 22ºC and 32ºC on average.

More about Colombo

  • When it comes to looking for somewhere to rest your head, you'll find the top stays in Colombo right here. Check out these options as soon as you've locked in your flight from Don Mueang International Airport to Colombo:

  • All great adventures should include a little sightseeing. Gangaramaya Temple, Independence Square & Independence Memorial Hall and Viharamahadevi Park are must-visits when exploring Colombo.

Complete your Colombo trip with a car rental

  • Select one of our car rentals in Colombo and explore the city in your own time. Easily compare rates in one place to find your perfect ride once you've locked in your hotel and cheap flights from Don Mueang International Airport to Colombo.

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