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Bangkok to Koh Samui in March 2027 BKK, DMK → USM

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

For departures in March 2027, the cheapest return found recently is $170 with Bangkok Airways, 6 Mar 2027 – 19 Mar 2027, found yesterday.

Return

In March 2027, the cheapest return fare on each of 19 departure dates is usually $172 to $220. Across all 184 departure dates we hold on this route, it is usually $173 to $246. Of the 12 months with enough return fares to compare, 8 are usually cheaper than March 2027.

Cheapest return found recently

$170

6 Mar 2027 – 19 Mar 2027 · Bangkok Airways

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

out nonstop, back nonstop

found yesterday

See prices for these datesCheck today's price

Cheapest we hold, of any age

$165

14 Mar 2027 – 23 Mar 2027 · 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

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The cheapest dates in March 2027

DatesFromAirlineStopsFound
14 Mar 2027 – 23 Mar 2027$165Bangkok Airwaysout nonstop, back nonstopfound 2 days agoSee prices for these dates
6 Mar 2027 – 19 Mar 2027$170Bangkok Airwaysout nonstop, back nonstopfound yesterdaySee prices for these dates
8 Mar 2027 – 21 Mar 2027$170Bangkok Airwaysout nonstop, back nonstopfound yesterdaySee prices for these dates
20 Mar 2027 – 4 Apr 2027$170Bangkok Airwaysout nonstop, back nonstopfound yesterdaySee prices for these dates
28 Mar 2027 – 4 Apr 2027$171Bangkok Airwaysout nonstop, back nonstopfound yesterdaySee prices for these dates

Every date we hold

19 departure dates

1 Mar 2027 – 7 Mar 2027: $173, found 6 days ago2 Mar 2027 – 16 Mar 2027: $175, found 4 days ago3 Mar 2027 – 8 Mar 2027: $173, found 2 days ago5 Mar 2027 – 16 Mar 2027: $174, found 4 days ago6 Mar 2027 – 19 Mar 2027: $170, found yesterday8 Mar 2027 – 21 Mar 2027: $170, found yesterday9 Mar 2027 – 24 Mar 2027: $264, found 4 days ago11 Mar 2027 – 30 Mar 2027: $174, found 6 days ago12 Mar 2027 – 25 Mar 2027: $328, found 3 days ago13 Mar 2027 – 27 Mar 2027: $174, found 2 days ago14 Mar 2027 – 23 Mar 2027: $165, found 2 days ago18 Mar 2027 – 2 Apr 2027: $268, found 2 days ago19 Mar 2027 – 4 Apr 2027: $174, found 2 days ago20 Mar 2027 – 4 Apr 2027: $170, found yesterday21 Mar 2027 – 17 Apr 2027: $264, found today23 Mar 2027 – 3 Apr 2027: $172, found 3 days ago27 Mar 2027 – 8 Apr 2027: $174, found today28 Mar 2027 – 4 Apr 2027: $171, found yesterday29 Mar 2027 – 9 Apr 2027: $265, found 5 days agoMar
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Mar 2027 – 7 Mar 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 6 days agoSee prices for these dates
2 Mar 2027 – 16 Mar 2027$175Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
3 Mar 2027 – 8 Mar 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
5 Mar 2027 – 16 Mar 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
6 Mar 2027 – 19 Mar 2027$170Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound yesterdaySee prices for these dates
8 Mar 2027 – 21 Mar 2027$170Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound yesterdaySee prices for these dates
9 Mar 2027 – 24 Mar 2027$264Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
11 Mar 2027 – 30 Mar 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 6 days agoSee prices for these dates
12 Mar 2027 – 25 Mar 2027$328Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
13 Mar 2027 – 27 Mar 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
14 Mar 2027 – 23 Mar 2027$165Bangkok AirwaysDon Mueang International Airport (DMK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
18 Mar 2027 – 2 Apr 2027$268Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
19 Mar 2027 – 4 Apr 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
20 Mar 2027 – 4 Apr 2027$170Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound yesterdaySee prices for these dates
21 Mar 2027 – 17 Apr 2027$264Bangkok AirwaysDon Mueang International Airport (DMK) → Koh Samui Airport (USM)out nonstop, back nonstopfound todaySee prices for these dates
23 Mar 2027 – 3 Apr 2027$172Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
27 Mar 2027 – 8 Apr 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound todaySee prices for these dates
28 Mar 2027 – 4 Apr 2027$171Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound yesterdaySee prices for these dates
29 Mar 2027 – 9 Apr 2027$265Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $154.

October 2026From $1639 departure dates27 Oct – 4 Nov · found 3 days agoSee prices for these datesEvery date in October 2026
November 2026From $154Cheapest seen26 departure dates2 Nov – 7 Nov · found 5 days agoSee prices for these datesEvery date in November 2026
December 2026From $17225 departure dates2 Dec – 24 Dec · found 3 days agoSee prices for these datesEvery date in December 2026
January 2027From $17328 departure dates25 Jan 2027 – 6 Mar 2027 · found 6 days agoSee prices for these datesEvery date in January 2027
February 2027From $17023 departure dates22 Feb 2027 – 8 Mar 2027 · found yesterdaySee prices for these datesEvery date in February 2027
March 2027From $16519 departure dates14 Mar 2027 – 23 Mar 2027 · found 2 days agoSee prices for these dates
April 2027From $17017 departure dates6 Apr 2027 – 15 Apr 2027 · found todaySee prices for these datesEvery date in April 2027
May 2027From $17312 departure dates18 May 2027 – 3 Jun 2027 · found 3 days agoSee prices for these datesEvery date in May 2027
June 2027From $1706 departure dates25 Jun 2027 – 16 Jul 2027 · found yesterdaySee prices for these dates
July 2027From $1708 departure dates30 Jul 2027 – 5 Aug 2027 · found yesterdaySee prices for these datesEvery date in July 2027
August 2027From $1707 departure dates1 Aug 2027 – 7 Aug 2027 · found yesterdaySee prices for these datesEvery date in August 2027
September 2027From $1704 departure dates27 Sept 2027 – 10 Oct 2027 · found 21 hours 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