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Koh Samui to Bangkok flights in January 2027 from $144 USM → BKK, DMK

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

For departures in January 2027, the cheapest return found recently is $299 with Bangkok Airways, 11 Jan 2027 – 12 Jan 2027, found 2 days ago. The cheapest one-way found recently is $144 with Bangkok Airways, 26 Jan 2027, found 3 days ago.

Return

In January 2027, the cheapest return fare on each of 13 departure dates is usually $265 to $293. Across all 55 departure dates we hold on this route, it is usually $225 to $286. Of the 5 months with enough return fares to compare, 3 are usually cheaper than January 2027.

Cheapest return found recently

$299

11 Jan 2027 – 12 Jan 2027 · Bangkok Airways

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

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$243

31 Jan 2027 – 13 Feb 2027 · Bangkok Airways

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

out nonstop, back nonstop

found 5 days ago

See prices for these datesCheck today's price

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The cheapest dates in January 2027

DatesFromAirlineStopsFound
31 Jan 2027 – 13 Feb 2027$243Bangkok Airwaysout nonstop, back nonstopfound 5 days agoSee prices for these dates
28 Jan 2027 – 30 Jan 2027$255Bangkok Airwaysout nonstop, back nonstopfound 3 days agoSee prices for these dates
30 Jan 2027 – 30 Jan 2027$256Bangkok Airwaysout nonstop, back nonstopfound 3 days agoSee prices for these dates
17 Jan 2027 – 25 Jan 2027$265Bangkok Airwaysout nonstop, back nonstopfound 6 days agoSee prices for these dates
29 Jan 2027 – 30 Jan 2027$265Bangkok Airwaysout nonstop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

13 departure dates

3 Jan 2027 – 4 Jan 2027: $632, found 5 days ago4 Jan 2027 – 7 Jan 2027: $286, found 4 days ago5 Jan 2027 – 12 Jan 2027: $293, found 6 days ago6 Jan 2027 – 28 Jan 2027: $282, found 7 days ago9 Jan 2027 – 26 Jan 2027: $283, found 8 days ago11 Jan 2027 – 12 Jan 2027: $299, found 2 days ago13 Jan 2027 – 21 Jan 2027: $283, found 5 days ago17 Jan 2027 – 25 Jan 2027: $265, found 6 days ago25 Jan 2027 – 9 Feb 2027: $367, found 4 days ago28 Jan 2027 – 30 Jan 2027: $255, found 3 days ago29 Jan 2027 – 30 Jan 2027: $265, found 3 days ago30 Jan 2027 – 30 Jan 2027: $256, found 3 days ago31 Jan 2027 – 13 Feb 2027: $243, found 5 days agoJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Jan 2027 – 4 Jan 2027$632Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out 2 stops, back nonstopfound 5 days agoSee prices for these dates
4 Jan 2027 – 7 Jan 2027$286Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
5 Jan 2027 – 12 Jan 2027$293Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
6 Jan 2027 – 28 Jan 2027$282Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
9 Jan 2027 – 26 Jan 2027$283Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 8 days agoSee prices for these dates
11 Jan 2027 – 12 Jan 2027$299Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
13 Jan 2027 – 21 Jan 2027$283Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
17 Jan 2027 – 25 Jan 2027$265Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
25 Jan 2027 – 9 Feb 2027$367Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
28 Jan 2027 – 30 Jan 2027$255Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
29 Jan 2027 – 30 Jan 2027$265Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
30 Jan 2027 – 30 Jan 2027$256Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
31 Jan 2027 – 13 Feb 2027$243Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)out nonstop, back nonstopfound 5 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $103.

November 2026From $103Cheapest seen7 departure dates14 Nov – 17 Nov · found 4 days agoSee prices for these datesEvery date in November 2026
December 2026From $22615 departure dates10 Dec – 14 Dec · found 4 days agoSee prices for these datesEvery date in December 2026
January 2027From $24313 departure dates31 Jan 2027 – 13 Feb 2027 · found 5 days agoSee prices for these dates
February 2027From $1749 departure dates23 Feb 2027 – 6 Mar 2027 · found 3 days agoSee prices for these datesEvery date in February 2027
March 2027From $2264 departure dates2 Mar 2027 – 14 Mar 2027 · found 6 days agoSee prices for these datesEvery date in March 2027
April 2027From $1732 departure dates11 Apr 2027 – 24 Apr 2027 · found 6 days agoSee prices for these datesEvery date in April 2027
May 2027From $1732 departure dates1 May 2027 – 12 May 2027 · found 8 days agoSee prices for these dates
June 2027From $1731 departure date16 Jun 2027 – 27 Jun 2027 · found 5 days agoSee prices for these dates
July 2027From $1741 departure date5 Jul 2027 – 15 Jul 2027 · found 6 days agoSee prices for these dates
August 2027From $1741 departure date1 Aug 2027 – 14 Aug 2027 · found 6 days agoSee prices for these dates

One-way

In January 2027, the cheapest one-way fare on each of 4 departure dates is usually $130 to $147. Across all 106 departure dates we hold on this route, it is usually $90 to $137. Of the 11 months with enough one-way fares to compare, 9 are usually cheaper than January 2027.

Cheapest one-way found recently

$144

26 Jan 2027 · Bangkok Airways

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

nonstop

found 3 days ago

Open this tripCheck today's price

Cheapest we hold, of any age

$86

1 Jan 2027 · Bangkok Airways

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

nonstop

found 5 days ago

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The cheapest dates in January 2027

DatesFromAirlineStopsFound
1 Jan 2027$86Bangkok Airwaysnonstopfound 5 days agoOpen this trip
26 Jan 2027$144Bangkok Airwaysnonstopfound 3 days agoOpen this trip
29 Jan 2027$145Bangkok Airwaysnonstopfound 7 days agoOpen this trip
28 Jan 2027$152Bangkok Airwaysnonstopfound 6 days agoOpen this trip

Every date we hold

4 departure dates

1 Jan 2027: $86, found 5 days ago26 Jan 2027: $144, found 3 days ago28 Jan 2027: $152, found 6 days ago29 Jan 2027: $145, found 7 days agoJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Jan 2027$86Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 5 days agoOpen this trip
26 Jan 2027$144Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)nonstopfound 3 days agoOpen this trip
28 Jan 2027$152Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)nonstopfound 6 days agoOpen this trip
29 Jan 2027$145Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 7 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $50.

November 2026From $50Cheapest seen17 departure dates19 Nov · found 2 days agoOpen this tripEvery date in November 2026
December 2026From $9015 departure dates23 Dec · found 5 days agoOpen this tripEvery date in December 2026
January 2027From $864 departure dates1 Jan 2027 · found 5 days agoOpen this trip
February 2027From $899 departure dates6 Feb 2027 · found 2 days agoOpen this tripEvery date in February 2027
March 2027From $8726 departure dates11 Mar 2027 · found 2 days agoOpen this tripEvery date in March 2027
April 2027From $8910 departure dates27 Apr 2027 · found 2 days agoOpen this tripEvery date in April 2027
May 2027From $896 departure dates1 May 2027 · found 2 days agoOpen this trip
June 2027From $906 departure dates3 Jun 2027 · found 5 days agoOpen this trip
July 2027From $895 departure dates18 Jul 2027 · found 2 days agoOpen this trip
August 2027From $904 departure dates5 Aug 2027 · found 5 days agoOpen this trip
September 2027From $901 departure date15 Sept 2027 · found 4 days agoOpen this trip
October 2027From $903 departure dates21 Oct 2027 · found 7 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