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Madrid to Bangkok flights in December 2026 from $645 MAD → BKK, DMK

Adolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

For departures in December 2026, the cheapest return found recently is $645 with Qatar Airways, 4 Dec – 23 Dec, found today.

Return

In December 2026, the cheapest return fare on each of 10 departure dates is usually $649 to $943. Across all 47 departure dates we hold on this route, it is usually $669 to $824. Of the 4 months with enough return fares to compare, 2 are usually cheaper than December 2026.

Cheapest return found recently

$645

4 Dec – 23 Dec · Qatar Airways

Adolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)

out 1 stop, back 1 stop

found today

See prices for these datesCheck today's price

Cheapest we hold, of any age

$599

3 Dec – 17 Dec · Hainan Airlines

Adolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)

out 1 stop, back 1 stop

found 5 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
3 Dec – 17 Dec$599Hainan Airlinesout 1 stop, back 1 stopfound 5 days agoSee prices for these dates
10 Dec – 18 Dec$631Hainan Airlinesout 1 stop, back 1 stopfound 6 days agoSee prices for these dates
4 Dec – 23 Dec$645Qatar Airwaysout 1 stop, back 1 stopfound todaySee prices for these dates
5 Dec – 16 Dec$662Etihad Airwaysout 1 stop, back 1 stopfound 4 days agoSee prices for these dates
27 Dec – 31 Jan 2027$718Hainan Airlinesout 1 stop, back 1 stopfound 6 days agoSee prices for these dates

Every date we hold

10 departure dates

3 Dec – 17 Dec: $599, found 5 days ago4 Dec – 23 Dec: $645, found today5 Dec – 16 Dec: $662, found 4 days ago10 Dec – 18 Dec: $631, found 6 days ago17 Dec – 6 Jan 2027: $946, found yesterday25 Dec – 16 Jan 2027: $932, found 4 days ago26 Dec – 30 Jan 2027: $1,006, found 6 days ago27 Dec – 31 Jan 2027: $718, found 6 days ago28 Dec – 1 Feb 2027: $863, found 6 days ago29 Dec – 11 Jan 2027: $996, found 2 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Dec – 17 Dec$599Hainan AirlinesAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
4 Dec – 23 Dec$645Qatar AirwaysAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound todaySee prices for these dates
5 Dec – 16 Dec$662Etihad AirwaysAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
10 Dec – 18 Dec$631Hainan AirlinesAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
17 Dec – 6 Jan 2027$946Hainan AirlinesAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
25 Dec – 16 Jan 2027$932AjetAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 3 stops, back 2 stopsfound 4 days agoSee prices for these dates
26 Dec – 30 Jan 2027$1,006China Southern AirlinesAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
27 Dec – 31 Jan 2027$718Hainan AirlinesAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
28 Dec – 1 Feb 2027$863KLMAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 2 stops, back 2 stopsfound 6 days agoSee prices for these dates
29 Dec – 11 Jan 2027$996RyanairAdolfo Suarez Madrid-Barajas Airport (MAD) → Suvarnabhumi Airport (BKK)out 2 stops, back 2 stopsfound 2 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $552.

November 2026From $552Cheapest seen1 departure date25 Nov – 8 Dec · found 6 hours agoSee prices for these dates
December 2026From $59910 departure dates3 Dec – 17 Dec · found 5 days agoSee prices for these dates
January 2027From $6338 departure dates6 Jan 2027 – 27 Jan 2027 · found 5 hours agoSee prices for these datesEvery date in January 2027
February 2027From $62212 departure dates21 Feb 2027 – 9 Mar 2027 · found 5 days agoSee prices for these datesEvery date in February 2027
March 2027From $6879 departure dates1 Mar 2027 – 17 Mar 2027 · found todaySee prices for these datesEvery date in March 2027
April 2027From $6641 departure date22 Apr 2027 – 6 May 2027 · found todaySee prices for these dates
June 2027From $6652 departure dates1 Jun 2027 – 28 Jun 2027 · found 5 days agoSee prices for these dates
July 2027From $7932 departure dates29 Jul 2027 – 9 Aug 2027 · found todaySee prices for these dates
August 2027From $7652 departure dates1 Aug 2027 – 16 Aug 2027 · found 7 hours 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