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Tokyo to Bangkok flights in December 2026 from $575 HND, NRT → BKK, DMK

Haneda Airport (HND), Narita International Airport (NRT) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

For departures in December 2026, the cheapest return found recently is $575 with Jetstar Japan, 24 Dec – 5 Jan 2027, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 8 departure dates is usually $361 to $502. Across all 25 departure dates we hold on this route, it is usually $399 to $477. Of the 4 months with enough return fares to compare, December 2026 is usually the cheapest.

Cheapest return found recently

$575

24 Dec – 5 Jan 2027 · Jetstar Japan

Narita International Airport (NRT) → Don Mueang International Airport (DMK)

out 1 stop, back 1 stop

found 2 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$351

5 Dec – 10 Dec · Thai AirAsia X

Narita International Airport (NRT) → Don Mueang International Airport (DMK)

out nonstop, back nonstop

found 6 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
5 Dec – 10 Dec$351Thai AirAsia Xout nonstop, back nonstopfound 6 days agoSee prices for these dates
9 Dec – 15 Dec$355Juneyao Airlinesout 1 stop, back 1 stopfound 4 days agoSee prices for these dates
17 Dec – 15 Jan 2027$363Juneyao Airlinesout 1 stop, back 1 stopfound 3 days agoSee prices for these dates
1 Dec – 7 Dec$385Juneyao Airlinesout 1 stop, back 1 stopfound 5 days agoSee prices for these dates
6 Dec – 12 Dec$392Thai AirAsia Xout nonstop, back 1 stopfound 3 days agoSee prices for these dates

Every date we hold

8 departure dates

1 Dec – 7 Dec: $385, found 5 days ago5 Dec – 10 Dec: $351, found 6 days ago6 Dec – 12 Dec: $392, found 3 days ago9 Dec – 15 Dec: $355, found 4 days ago17 Dec – 15 Jan 2027: $363, found 3 days ago23 Dec – 29 Dec: $477, found 7 days ago24 Dec – 5 Jan 2027: $575, found 2 days ago26 Dec – 5 Jan 2027: $725, found 6 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 7 Dec$385Juneyao AirlinesNarita International Airport (NRT) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
5 Dec – 10 Dec$351Thai AirAsia XNarita International Airport (NRT) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
6 Dec – 12 Dec$392Thai AirAsia XNarita International Airport (NRT) → Don Mueang International Airport (DMK)out nonstop, back 1 stopfound 3 days agoSee prices for these dates
9 Dec – 15 Dec$355Juneyao AirlinesNarita International Airport (NRT) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
17 Dec – 15 Jan 2027$363Juneyao AirlinesNarita International Airport (NRT) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
23 Dec – 29 Dec$477Thai AirAsia XNarita International Airport (NRT) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
24 Dec – 5 Jan 2027$575Jetstar JapanNarita International Airport (NRT) → Don Mueang International Airport (DMK)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
26 Dec – 5 Jan 2027$725Thai AirAsia XNarita International Airport (NRT) → Don Mueang International Airport (DMK)out nonstop, back 1 stopfound 6 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $351.

November 2026From $3805 departure dates24 Nov – 2 Dec · found 4 days agoSee prices for these dates
December 2026From $351Cheapest seen8 departure dates5 Dec – 10 Dec · found 6 days agoSee prices for these dates
January 2027From $3993 departure dates14 Jan 2027 – 24 Jan 2027 · found 4 days agoSee prices for these dates
February 2027From $4712 departure dates12 Feb 2027 – 19 Feb 2027 · found 5 days agoSee prices for these dates
April 2027From $4396 departure dates4 Apr 2027 – 20 Apr 2027 · found 8 days agoSee prices for these dates
May 2027From $4141 departure date21 May 2027 – 28 May 2027 · found 6 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