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Bangkok to Chiang Mai in December 2026 BKK, DMK → CNX

Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)

For departures in December 2026, the cheapest return found recently is $98 with Thai AirAsia, 2 Dec – 18 Dec, found today. The cheapest one-way found recently is $40 with Thai Vietjet Air, 12 Dec, found 4 days ago.

Return

In December 2026, the cheapest return fare on each of 18 departure dates is usually $98 to $128. Across all 74 departure dates we hold on this route, it is usually $82 to $105. Of the 5 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$98

2 Dec – 18 Dec · Thai AirAsia

Suvarnabhumi Airport (BKK) → Chiang Mai International Airport (CNX)

out nonstop, back nonstop

found today

See prices for these datesCheck today's price

Cheapest we hold, of any age

$85

22 Dec – 8 Jan 2027 · Thai AirAsia

Don Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)

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
22 Dec – 8 Jan 2027$85Thai AirAsiaout nonstop, back nonstopfound 6 days agoSee prices for these dates
15 Dec – 14 Jan 2027$87Thai Lion Airout nonstop, back nonstopfound 4 days agoSee prices for these dates
1 Dec – 19 Dec$93Thai Lion Airout nonstop, back nonstopfound 2 days agoSee prices for these dates
2 Dec – 18 Dec$98Thai AirAsiaout nonstop, back nonstopfound todaySee prices for these dates
13 Dec – 16 Dec$98Thai AirAsiaout nonstop, back nonstopfound 6 days agoSee prices for these dates

Every date we hold

18 departure dates

1 Dec – 19 Dec: $93, found 2 days ago2 Dec – 18 Dec: $98, found today4 Dec – 4 Dec: $129, found 5 days ago9 Dec – 11 Dec: $104, found 4 days ago11 Dec – 13 Dec: $109, found 4 days ago13 Dec – 16 Dec: $98, found 6 days ago15 Dec – 14 Jan 2027: $87, found 4 days ago17 Dec – 20 Dec: $104, found yesterday18 Dec – 28 Dec: $119, found 5 days ago19 Dec – 21 Dec: $99, found 5 days ago21 Dec – 30 Dec: $126, found yesterday22 Dec – 8 Jan 2027: $85, found 6 days ago24 Dec – 29 Dec: $134, found 2 days ago26 Dec – 22 Jan 2027: $120, found yesterday28 Dec – 4 Jan 2027: $142, found 6 days ago29 Dec – 4 Jan 2027: $147, found 4 days ago30 Dec – 5 Jan 2027: $135, found 6 days ago31 Dec – 5 Jan 2027: $111, found 2 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 19 Dec$93Thai Lion AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 2 days agoSee prices for these dates
2 Dec – 18 Dec$98Thai AirAsiaSuvarnabhumi Airport (BKK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound todaySee prices for these dates
4 Dec – 4 Dec$129THAI AirwaysSuvarnabhumi Airport (BKK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 5 days agoSee prices for these dates
9 Dec – 11 Dec$104Thai Lion AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 4 days agoSee prices for these dates
11 Dec – 13 Dec$109Thai Lion AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 4 days agoSee prices for these dates
13 Dec – 16 Dec$98Thai AirAsiaDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 6 days agoSee prices for these dates
15 Dec – 14 Jan 2027$87Thai Lion AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 4 days agoSee prices for these dates
17 Dec – 20 Dec$104Thai Lion AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound yesterdaySee prices for these dates
18 Dec – 28 Dec$119Thai AirAsiaDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 5 days agoSee prices for these dates
19 Dec – 21 Dec$99Thai Vietjet AirSuvarnabhumi Airport (BKK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 5 days agoSee prices for these dates
21 Dec – 30 Dec$126Thai AirAsiaDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound yesterdaySee prices for these dates
22 Dec – 8 Jan 2027$85Thai AirAsiaDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 6 days agoSee prices for these dates
24 Dec – 29 Dec$134Thai AirAsiaDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 2 days agoSee prices for these dates
26 Dec – 22 Jan 2027$120Nok AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound yesterdaySee prices for these dates
28 Dec – 4 Jan 2027$142Nok AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 6 days agoSee prices for these dates
29 Dec – 4 Jan 2027$147Thai Lion AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 4 days agoSee prices for these dates
30 Dec – 5 Jan 2027$135Thai AirAsiaDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 6 days agoSee prices for these dates
31 Dec – 5 Jan 2027$111Thai AirAsiaSuvarnabhumi Airport (BKK) → Chiang Mai International Airport (CNX)out nonstop, back nonstopfound 2 days agoSee prices for these dates

Which month looks cheapest?

October 2026 is the cheapest month — from $66.

October 2026From $66Cheapest seen8 departure dates27 Oct – 27 Oct · found 2 days agoSee prices for these datesEvery date in October 2026
November 2026From $8124 departure dates3 Nov – 7 Nov · found 3 days agoSee prices for these datesEvery date in November 2026
December 2026From $8518 departure dates22 Dec – 8 Jan 2027 · found 6 days agoSee prices for these dates
January 2027From $7817 departure dates5 Jan 2027 – 14 Jan 2027 · found 5 days agoSee prices for these datesEvery date in January 2027
February 2027From $715 departure dates9 Feb 2027 – 16 Feb 2027 · found 3 days agoSee prices for these dates
May 2027From $881 departure date5 May 2027 – 7 May 2027 · found 5 days agoSee prices for these dates
July 2027From $821 departure date1 Jul 2027 – 4 Jul 2027 · found 2 days agoSee prices for these datesEvery date in July 2027

One-way

In December 2026, the cheapest one-way fare on each of 3 departure dates is usually $42 to $44. Across all 24 departure dates we hold on this route, it is usually $34 to $43. Of the 4 months with enough one-way fares to compare, December 2026 is usually the most expensive.

Cheapest one-way found recently

$40

12 Dec · Thai Vietjet Air

Suvarnabhumi Airport (BKK) → Chiang Mai International Airport (CNX)

nonstop

found 4 days ago

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
12 Dec$40Thai Vietjet Airnonstopfound 4 days agoOpen this trip
14 Dec$43Thai Lion Airnonstopfound 4 days agoOpen this trip
15 Dec$45Thai Lion Airnonstopfound 4 days agoOpen this trip

Every date we hold

3 departure dates

12 Dec: $40, found 4 days ago14 Dec: $43, found 4 days ago15 Dec: $45, found 4 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
12 Dec$40Thai Vietjet AirSuvarnabhumi Airport (BKK) → Chiang Mai International Airport (CNX)nonstopfound 4 days agoOpen this trip
14 Dec$43Thai Lion AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)nonstopfound 4 days agoOpen this trip
15 Dec$45Thai Lion AirDon Mueang International Airport (DMK) → Chiang Mai International Airport (CNX)nonstopfound 4 days agoOpen this trip

Which month looks cheapest?

June 2027 is the cheapest month — from $29.

October 2026From $302 departure dates26 Oct · found 3 days agoOpen this tripEvery date in October 2026
November 2026From $393 departure dates5 Nov · found 4 days agoOpen this tripEvery date in November 2026
December 2026From $403 departure dates12 Dec · found 4 days agoOpen this trip
January 2027From $351 departure date12 Jan 2027 · found 3 days agoOpen this tripEvery date in January 2027
February 2027From $422 departure dates5 Feb 2027 · found 2 days agoOpen this trip
March 2027From $353 departure dates30 Mar 2027 · found 5 days agoOpen this trip
April 2027From $541 departure date15 Apr 2027 · found 2 days agoOpen this trip
June 2027From $29Cheapest seen1 departure date15 Jun 2027 · found 5 days agoOpen this trip
July 2027From $297 departure dates19 Jul 2027 · found 17 hours agoOpen this tripEvery date in July 2027
August 2027From $401 departure date6 Aug 2027 · found 4 days agoOpen this trip

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