Skip to content
FareTell

Kuala Lumpur to Bangkok flights in December 2026 from $125 KUL, SZB → BKK, DMK

Kuala Lumpur International Airport (KUL), Sultan Abdul Aziz Shah Airport (SZB) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

For departures in December 2026, the cheapest return found recently is $125 with Thai Vietjet Air, 25 Dec – 13 Jan 2027, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 15 departure dates is usually $199 to $252. Across all 46 departure dates we hold on this route, it is usually $161 to $224. Of the 6 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$125

25 Dec – 13 Jan 2027 · Thai Vietjet Air

Kuala Lumpur International Airport (KUL) → Suvarnabhumi Airport (BKK)

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

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

FareTell may earn a commission when you book through a partner.

The cheapest dates in December 2026

DatesFromAirlineStopsFound
25 Dec – 13 Jan 2027$125Thai Vietjet Airout nonstop, back nonstopfound 2 days agoSee prices for these dates
8 Dec – 9 Dec$191AirAsiaout nonstop, back nonstopfound 2 days agoSee prices for these dates
2 Dec – 7 Dec$198AirAsiaout nonstop, back nonstopfound 4 days agoSee prices for these dates
12 Dec – 4 Jan 2027$198AirAsiaout nonstop, back nonstopfound 5 days agoSee prices for these dates
5 Dec – 13 Dec$199AirAsiaout nonstop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

15 departure dates

2 Dec – 7 Dec: $198, found 4 days ago3 Dec – 6 Dec: $341, found 4 days ago4 Dec – 8 Dec: $248, found 4 days ago5 Dec – 13 Dec: $199, found 3 days ago7 Dec – 14 Dec: $207, found 7 days ago8 Dec – 9 Dec: $191, found 2 days ago10 Dec – 20 Dec: $255, found 3 days ago11 Dec – 4 Jan 2027: $227, found 2 days ago12 Dec – 4 Jan 2027: $198, found 5 days ago13 Dec – 4 Jan 2027: $200, found 5 days ago18 Dec – 23 Dec: $368, found 2 days ago20 Dec – 23 Dec: $212, found 2 days ago23 Dec – 2 Jan 2027: $259, found 5 days ago25 Dec – 13 Jan 2027: $125, found 2 days ago30 Dec – 1 Jan 2027: $202, found 6 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
2 Dec – 7 Dec$198AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
3 Dec – 6 Dec$341FireflySultan Abdul Aziz Shah Airport (SZB) → Don Mueang International Airport (DMK)out 1 stop, back nonstopfound 4 days agoSee prices for these dates
4 Dec – 8 Dec$248AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
5 Dec – 13 Dec$199AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
7 Dec – 14 Dec$207Thai Vietjet AirKuala Lumpur International Airport (KUL) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
8 Dec – 9 Dec$191AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
10 Dec – 20 Dec$255AirAsiaKuala Lumpur International Airport (KUL) → Suvarnabhumi Airport (BKK)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
11 Dec – 4 Jan 2027$227AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
12 Dec – 4 Jan 2027$198AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
13 Dec – 4 Jan 2027$200AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
18 Dec – 23 Dec$368Batik Air MalaysiaSultan Abdul Aziz Shah Airport (SZB) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
20 Dec – 23 Dec$212Thai Vietjet AirKuala Lumpur International Airport (KUL) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
23 Dec – 2 Jan 2027$259AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back 1 stopfound 5 days agoSee prices for these dates
25 Dec – 13 Jan 2027$125Thai Vietjet AirKuala Lumpur International Airport (KUL) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
30 Dec – 1 Jan 2027$202AirAsiaKuala Lumpur International Airport (KUL) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 6 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $125.

November 2026From $1498 departure dates22 Nov – 26 Nov · found 7 days agoSee prices for these datesEvery date in November 2026
December 2026From $125Cheapest seen15 departure dates25 Dec – 13 Jan 2027 · found 2 days agoSee prices for these dates
January 2027From $1554 departure dates14 Jan 2027 – 20 Jan 2027 · found 5 days agoSee prices for these dates
February 2027From $1503 departure dates17 Feb 2027 – 18 Feb 2027 · found 5 days agoSee prices for these dates
March 2027From $1519 departure dates3 Mar 2027 – 17 Mar 2027 · found 5 days agoSee prices for these datesEvery date in March 2027
April 2027From $2081 departure date2 Apr 2027 – 4 Apr 2027 · found 2 days agoSee prices for these dates
July 2027From $1524 departure dates13 Jul 2027 – 22 Jul 2027 · found 2 days agoSee prices for these dates
August 2027From $2391 departure date31 Aug 2027 – 12 Sept 2027 · found 5 days agoSee prices for these dates
October 2027From $2901 departure date28 Oct 2027 – 31 Oct 2027 · found 5 days agoSee 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