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Bangkok to Koh Samui flights in November 2026 from $40 BKK, DMK → USM

Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK) → Koh Samui Airport (USM)

For departures in November 2026, the cheapest return found recently is $166 with Bangkok Airways, 17 Nov – 25 Nov, found 2 days ago. The cheapest one-way found recently is $40 with Bangkok Airways, 19 Nov, found 2 days ago.

Return

In November 2026, the cheapest return fare on each of 14 departure dates is usually $166 to $232. Across all 223 departure dates we hold on this route, it is usually $173 to $243. Of the 11 months with enough return fares to compare, 7 are usually cheaper than November 2026.

Cheapest return found recently

$166

17 Nov – 25 Nov · Bangkok Airways

Don Mueang International Airport (DMK) → Koh Samui Airport (USM)

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$104

15 Nov – 15 Nov · Bangkok Airways

Suvarnabhumi Airport (BKK) → Koh Samui Airport (USM)

out nonstop, back nonstop

found 5 days ago

See prices for these datesCheck today's price

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The cheapest dates in November 2026

DatesFromAirlineStopsFound
15 Nov – 15 Nov$104Bangkok Airwaysout nonstop, back nonstopfound 5 days agoSee prices for these dates
14 Nov – 24 Nov$150Bangkok Airwaysout nonstop, back nonstopfound 5 days agoSee prices for these dates
17 Nov – 25 Nov$166Bangkok Airwaysout nonstop, back nonstopfound 2 days agoSee prices for these dates
18 Nov – 16 Dec$166Bangkok Airwaysout nonstop, back nonstopfound 4 days agoSee prices for these dates
13 Nov – 23 Nov$167Bangkok Airwaysout nonstop, back nonstopfound 4 days agoSee prices for these dates

Every date we hold

14 departure dates

13 Nov – 23 Nov: $167, found 4 days ago14 Nov – 24 Nov: $150, found 5 days ago15 Nov – 15 Nov: $104, found 5 days ago16 Nov – 2 Dec: $183, found 4 days ago17 Nov – 25 Nov: $166, found 2 days ago18 Nov – 16 Dec: $166, found 4 days ago19 Nov – 15 Dec: $206, found 2 days ago23 Nov – 8 Dec: $252, found 3 days ago24 Nov – 8 Dec: $241, found 3 days ago25 Nov – 22 Dec: $224, found 5 days ago26 Nov – 13 Dec: $202, found 7 days ago27 Nov – 13 Dec: $235, found 7 days ago29 Nov – 7 Dec: $254, found 7 days ago30 Nov – 19 Dec: $202, found 7 days agoNov
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
13 Nov – 23 Nov$167Bangkok AirwaysDon Mueang International Airport (DMK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
14 Nov – 24 Nov$150Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
15 Nov – 15 Nov$104Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
16 Nov – 2 Dec$183Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
17 Nov – 25 Nov$166Bangkok AirwaysDon Mueang International Airport (DMK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
18 Nov – 16 Dec$166Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
19 Nov – 15 Dec$206Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
23 Nov – 8 Dec$252Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
24 Nov – 8 Dec$241Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
25 Nov – 22 Dec$224Bangkok AirwaysDon Mueang International Airport (DMK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
26 Nov – 13 Dec$202Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 7 days agoSee prices for these dates
27 Nov – 13 Dec$235Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 7 days agoSee prices for these dates
29 Nov – 7 Dec$254Bangkok AirwaysDon Mueang International Airport (DMK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 7 days agoSee prices for these dates
30 Nov – 19 Dec$202Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 7 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $104.

November 2026From $104Cheapest seen14 departure dates15 Nov – 15 Nov · found 5 days agoSee prices for these dates
December 2026From $20730 departure dates9 Dec – 24 Dec · found 7 days agoSee prices for these datesEvery date in December 2026
January 2027From $17430 departure dates27 Jan 2027 – 10 Mar 2027 · found 6 days agoSee prices for these datesEvery date in January 2027
February 2027From $17327 departure dates17 Feb 2027 – 16 Mar 2027 · found 2 days agoSee prices for these datesEvery date in February 2027
March 2027From $16326 departure dates3 Mar 2027 – 11 Mar 2027 · found 7 days agoSee prices for these datesEvery date in March 2027
April 2027From $16623 departure dates21 Apr 2027 – 20 May 2027 · found 5 days agoSee prices for these datesEvery date in April 2027
May 2027From $17114 departure dates30 May 2027 – 28 Jun 2027 · found yesterdaySee prices for these datesEvery date in May 2027
June 2027From $17214 departure dates3 Jun 2027 – 24 Jun 2027 · found 2 days agoSee prices for these datesEvery date in June 2027
July 2027From $15920 departure dates17 Jul 2027 – 4 Aug 2027 · found 3 days agoSee prices for these datesEvery date in July 2027
August 2027From $16716 departure dates20 Aug 2027 – 29 Aug 2027 · found 6 days agoSee prices for these datesEvery date in August 2027
September 2027From $1722 departure dates3 Sept 2027 – 28 Sept 2027 · found 2 days agoSee prices for these dates
October 2027From $1737 departure dates2 Oct 2027 – 16 Oct 2027 · found 2 days agoSee prices for these datesEvery date in October 2027

One-way

In November 2026, the cheapest one-way fare on each of 4 departure dates is usually $43 to $58. Across all 26 departure dates we hold on this route, it is usually $84 to $84. Of the 4 months with enough one-way fares to compare, November 2026 is usually the cheapest.

Cheapest one-way found recently

$40

19 Nov · Bangkok Airways

Don Mueang International Airport (DMK) → Koh Samui Airport (USM)

nonstop

found 2 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 November 2026

DatesFromAirlineStopsFound
19 Nov$40Bangkok Airwaysnonstopfound 2 days agoOpen this trip
16 Nov$44Bangkok Airwaysnonstopfound 2 days agoOpen this trip
13 Nov$46Bangkok Airwaysstops unknownfound 4 days agoOpen this trip
15 Nov$93Bangkok Airways1 stopfound 5 days agoOpen this trip

Every date we hold

4 departure dates

13 Nov: $46, found 4 days ago15 Nov: $93, found 5 days ago16 Nov: $44, found 2 days ago19 Nov: $40, found 2 days agoNov
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
13 Nov$46Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)stops unknownfound 4 days agoOpen this trip
15 Nov$93Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)1 stopfound 5 days agoOpen this trip
16 Nov$44Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)nonstopfound 2 days agoOpen this trip
19 Nov$40Bangkok AirwaysDon Mueang International Airport (DMK) → Koh Samui Airport (USM)nonstopfound 2 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $40.

November 2026From $40Cheapest seen4 departure dates19 Nov · found 2 days agoOpen this trip
April 2027From $841 departure date15 Apr 2027 · found 5 days agoOpen this tripEvery date in April 2027
May 2027From $817 departure dates1 May 2027 · found 2 days agoOpen this tripEvery date in May 2027
June 2027From $846 departure dates6 Jun 2027 · found 6 days agoOpen this tripEvery date in June 2027
July 2027From $844 departure dates3 Jul 2027 · found 2 days agoOpen this tripEvery date in July 2027
August 2027From $842 departure dates12 Aug 2027 · found 6 days agoOpen this tripEvery date in August 2027
September 2027From $841 departure date4 Sept 2027 · found 3 days agoOpen this trip
October 2027From $851 departure date6 Oct 2027 · found 7 days agoOpen this tripEvery date in October 2027

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