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Colombo to Bangkok in December 2026 CMB → BKK, DMK

Bandaranaike International Airport (CMB) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

For departures in December 2026, the cheapest return found recently is $340 with Air India, 24 Dec – 5 Jan 2027, found yesterday.

Return

In December 2026, the cheapest return fare on each of 9 departure dates is usually $340 to $385. Across all 33 departure dates we hold on this route, it is usually $316 to $359. Of the 6 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$340

24 Dec – 5 Jan 2027 · Air India

Bandaranaike International Airport (CMB) → Suvarnabhumi Airport (BKK)

out 1 stop, back nonstop

found yesterday

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
24 Dec – 5 Jan 2027$340Air Indiaout 1 stop, back nonstopfound yesterdaySee prices for these dates
30 Dec – 6 Jan 2027$340Air Indiaout 1 stop, back nonstopfound yesterdaySee prices for these dates
31 Dec – 6 Jan 2027$340Air Indiaout 1 stop, back nonstopfound yesterdaySee prices for these dates
3 Dec – 8 Dec$354Air Indiaout 1 stop, back 1 stopfound yesterdaySee prices for these dates
1 Dec – 7 Dec$363Thai AirAsiaout nonstop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

9 departure dates

1 Dec – 7 Dec: $363, found 3 days ago2 Dec – 5 Dec: $420, found yesterday3 Dec – 8 Dec: $354, found yesterday8 Dec – 15 Dec: $381, found 6 days ago24 Dec – 5 Jan 2027: $340, found yesterday26 Dec – 22 Jan 2027: $385, found 6 days ago29 Dec – 24 Jan 2027: $386, found 6 days ago30 Dec – 6 Jan 2027: $340, found yesterday31 Dec – 6 Jan 2027: $340, found yesterdayDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 7 Dec$363Thai AirAsiaBandaranaike International Airport (CMB) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
2 Dec – 5 Dec$420Thai AirAsiaBandaranaike International Airport (CMB) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound yesterdaySee prices for these dates
3 Dec – 8 Dec$354Air IndiaBandaranaike International Airport (CMB) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
8 Dec – 15 Dec$381Thai AirAsiaBandaranaike International Airport (CMB) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
24 Dec – 5 Jan 2027$340Air IndiaBandaranaike International Airport (CMB) → Suvarnabhumi Airport (BKK)out 1 stop, back nonstopfound yesterdaySee prices for these dates
26 Dec – 22 Jan 2027$385Vietnam AirlinesBandaranaike International Airport (CMB) → Suvarnabhumi Airport (BKK)out 1 stop, back nonstopfound 6 days agoSee prices for these dates
29 Dec – 24 Jan 2027$386Air IndiaBandaranaike International Airport (CMB) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
30 Dec – 6 Jan 2027$340Air IndiaBandaranaike International Airport (CMB) → Suvarnabhumi Airport (BKK)out 1 stop, back nonstopfound yesterdaySee prices for these dates
31 Dec – 6 Jan 2027$340Air IndiaBandaranaike International Airport (CMB) → Suvarnabhumi Airport (BKK)out 1 stop, back nonstopfound yesterdaySee prices for these dates

Which month looks cheapest?

October 2026 is the cheapest month — from $272.

October 2026From $272Cheapest seen5 departure dates23 Oct – 31 Oct · found 2 days agoSee prices for these dates
November 2026From $2774 departure dates6 Nov – 13 Nov · found 2 days agoSee prices for these dates
December 2026From $3409 departure dates24 Dec – 5 Jan 2027 · found yesterdaySee prices for these dates
January 2027From $3167 departure dates23 Jan 2027 – 5 Mar 2027 · found yesterdaySee prices for these datesEvery date in January 2027
February 2027From $3403 departure dates19 Feb 2027 – 5 Mar 2027 · found 6 days agoSee prices for these dates
March 2027From $3245 departure dates21 Mar 2027 – 24 Mar 2027 · found yesterdaySee prices for these dates

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work