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London to Bangkok flights in January 2027 from $629 LCY, LGW, LHR, LTN, SEN, STN → BKK, DMK

London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

For departures in January 2027, the cheapest return found recently is $629 with Shenzhen Airlines, 19 Jan 2027 – 30 Jan 2027, found yesterday.

Return

In January 2027, the cheapest return fare on each of 12 departure dates is usually $588 to $691. Across all 68 departure dates we hold on this route, it is usually $609 to $909. Of the 5 months with enough return fares to compare, 2 are usually cheaper than January 2027.

Cheapest return found recently

$629

19 Jan 2027 – 30 Jan 2027 · Shenzhen Airlines

London Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)

out 1 stop, back 1 stop

found yesterday

See prices for these datesCheck today's price

Cheapest we hold, of any age

$560

27 Jan 2027 – 26 Feb 2027 · China Southern Airlines

London Gatwick Airport (LGW) → Suvarnabhumi Airport (BKK)

out 1 stop, back 1 stop

found 7 days ago

See prices for these datesCheck today's price

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The cheapest dates in January 2027

DatesFromAirlineStopsFound
27 Jan 2027 – 26 Feb 2027$560China Southern Airlinesout 1 stop, back 1 stopfound 7 days agoSee prices for these dates
21 Jan 2027 – 11 Mar 2027$567China Southern Airlinesout 1 stop, back 1 stopfound 3 days agoSee prices for these dates
6 Jan 2027 – 21 Jan 2027$576Xiamen Airlinesout 1 stop, back 1 stopfound 3 days agoSee prices for these dates
8 Jan 2027 – 22 Jan 2027$592Xiamen Airlinesout 1 stop, back 1 stopfound 2 days agoSee prices for these dates
14 Jan 2027 – 24 Jan 2027$624Shenzhen Airlinesout 1 stop, back 1 stopfound 4 days agoSee prices for these dates

Every date we hold

12 departure dates

3 Jan 2027 – 6 Jan 2027: $1,831, found 3 days ago6 Jan 2027 – 21 Jan 2027: $576, found 3 days ago7 Jan 2027 – 21 Jan 2027: $631, found 2 days ago8 Jan 2027 – 22 Jan 2027: $592, found 2 days ago10 Jan 2027 – 18 Jan 2027: $667, found 7 days ago14 Jan 2027 – 24 Jan 2027: $624, found 4 days ago18 Jan 2027 – 29 Jan 2027: $1,167, found yesterday19 Jan 2027 – 30 Jan 2027: $629, found yesterday21 Jan 2027 – 11 Mar 2027: $567, found 3 days ago23 Jan 2027 – 29 Jan 2027: $691, found 3 days ago25 Jan 2027 – 8 Feb 2027: $691, found 4 days ago27 Jan 2027 – 26 Feb 2027: $560, found 7 days agoJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Jan 2027 – 6 Jan 2027$1,831SWISSLondon City Airport (LCY) → Suvarnabhumi Airport (BKK)out 1 stop, back 2 stopsfound 3 days agoSee prices for these dates
6 Jan 2027 – 21 Jan 2027$576Xiamen AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
7 Jan 2027 – 21 Jan 2027$631Shenzhen AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
8 Jan 2027 – 22 Jan 2027$592Xiamen AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
10 Jan 2027 – 18 Jan 2027$667Shenzhen AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
14 Jan 2027 – 24 Jan 2027$624Shenzhen AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
18 Jan 2027 – 29 Jan 2027$1,167SWISSLondon City Airport (LCY) → Suvarnabhumi Airport (BKK)out 2 stops, back 2 stopsfound yesterdaySee prices for these dates
19 Jan 2027 – 30 Jan 2027$629Shenzhen AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
21 Jan 2027 – 11 Mar 2027$567China Southern AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
23 Jan 2027 – 29 Jan 2027$691Shenzhen AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
25 Jan 2027 – 8 Feb 2027$691Shenzhen AirlinesLondon Heathrow Airport (LHR) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
27 Jan 2027 – 26 Feb 2027$560China Southern AirlinesLondon Gatwick Airport (LGW) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates

Which month looks cheapest?

March 2027 is the cheapest month — from $516.

November 2026From $5258 departure dates24 Nov – 24 Dec · found 5 days agoSee prices for these datesEvery date in November 2026
December 2026From $61723 departure dates1 Dec – 17 Dec · found 5 days agoSee prices for these datesEvery date in December 2026
January 2027From $56012 departure dates27 Jan 2027 – 26 Feb 2027 · found 7 days agoSee prices for these dates
February 2027From $5699 departure dates21 Feb 2027 – 4 Mar 2027 · found 3 days agoSee prices for these datesEvery date in February 2027
March 2027From $516Cheapest seen9 departure dates3 Mar 2027 – 23 Mar 2027 · found 3 days agoSee prices for these datesEvery date in March 2027
April 2027From $7601 departure date2 Apr 2027 – 1 May 2027 · found 5 days agoSee prices for these dates
May 2027From $6012 departure dates28 May 2027 – 6 Jun 2027 · found 5 days agoSee prices for these dates
June 2027From $6731 departure date7 Jun 2027 – 27 Jun 2027 · found 7 days agoSee prices for these dates
August 2027From $8672 departure dates17 Aug 2027 – 1 Sept 2027 · found 6 days agoSee prices for these dates
September 2027From $7381 departure date1 Sept 2027 – 8 Sept 2027 · found 4 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