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

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

For departures in April 2027, the cheapest return found recently is $170 with Bangkok Airways, 12 Apr 2027 – 23 Apr 2027, found yesterday. The cheapest one-way found recently is $91 with Bangkok Airways, 5 Apr 2027, found 2 days ago.

Return

We hold return fares on only 1 departure date in April 2027, too few to say what one usually costs.

Cheapest return found recently

$170

12 Apr 2027 – 23 Apr 2027 · Bangkok Airways

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

out nonstop, back nonstop

found yesterday

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in April 2027

DatesFromAirlineStopsFound
12 Apr 2027 – 23 Apr 2027$170Bangkok Airwaysout nonstop, back nonstopfound yesterdaySee prices for these dates

Every date we hold

1 departure date

See every date as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
12 Apr 2027 – 23 Apr 2027$170Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound yesterdaySee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $155.

October 2026From $1706 departure dates26 Oct – 29 Oct · found todaySee prices for these dates
November 2026From $155Cheapest seen9 departure dates18 Nov – 30 Nov · found 6 days agoSee prices for these datesEvery date in November 2026
December 2026From $2069 departure dates22 Dec – 12 Jan 2027 · found 3 days agoSee prices for these datesEvery date in December 2026
January 2027From $2478 departure dates15 Jan 2027 – 11 Mar 2027 · found 5 days agoSee prices for these datesEvery date in January 2027
February 2027From $2058 departure dates25 Feb 2027 – 4 Mar 2027 · found yesterdaySee prices for these datesEvery date in February 2027
March 2027From $1704 departure dates4 Mar 2027 – 14 Mar 2027 · found 23 hours agoSee prices for these datesEvery date in March 2027
April 2027From $1701 departure date12 Apr 2027 – 23 Apr 2027 · found yesterdaySee prices for these dates
May 2027From $1731 departure date14 May 2027 – 3 Jun 2027 · found 2 days agoSee prices for these dates
June 2027From $1731 departure date13 Jun 2027 – 19 Jun 2027 · found 2 days agoSee prices for these dates
September 2027From $1701 departure date17 Sept 2027 – 4 Oct 2027 · found yesterdaySee prices for these dates

One-way

In April 2027, the cheapest one-way fare on each of 8 departure dates is usually $90 to $91. Across all 122 departure dates we hold on this route, it is usually $90 to $135. Of the 10 months with enough one-way fares to compare, 6 are usually cheaper than April 2027.

Cheapest one-way found recently

$91

5 Apr 2027 · Bangkok Airways

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

nonstop

found 2 days ago

Open this tripCheck today's price

Cheapest we hold, of any age

$90

4 Apr 2027 · Bangkok Airways

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

nonstop

found 4 days ago

Open this tripCheck today's price

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The cheapest dates in April 2027

DatesFromAirlineStopsFound
4 Apr 2027$90Bangkok Airwaysnonstopfound 4 days agoOpen this trip
6 Apr 2027$90Bangkok Airwaysnonstopfound 5 days agoOpen this trip
24 Apr 2027$90Bangkok Airwaysnonstopfound 4 days agoOpen this trip
30 Apr 2027$90Bangkok Airwaysnonstopfound 3 days agoOpen this trip
5 Apr 2027$91Bangkok Airwaysnonstopfound 2 days agoOpen this trip

Every date we hold

8 departure dates

4 Apr 2027: $90, found 4 days ago5 Apr 2027: $91, found 2 days ago6 Apr 2027: $90, found 5 days ago19 Apr 2027: $91, found 4 days ago24 Apr 2027: $90, found 4 days ago28 Apr 2027: $91, found 2 days ago29 Apr 2027: $91, found 4 days ago30 Apr 2027: $90, found 3 days agoApr
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
4 Apr 2027$90Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
5 Apr 2027$91Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 2 days agoOpen this trip
6 Apr 2027$90Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 5 days agoOpen this trip
19 Apr 2027$91Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
24 Apr 2027$90Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
28 Apr 2027$91Bangkok AirwaysKoh Samui Airport (USM) → Don Mueang International Airport (DMK)nonstopfound 2 days agoOpen this trip
29 Apr 2027$91Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
30 Apr 2027$90Bangkok AirwaysKoh Samui Airport (USM) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip

Which month looks cheapest?

October 2026 is the cheapest month — from $54.

October 2026From $54Cheapest seen6 departure dates24 Oct · found 8 hours agoOpen this trip
November 2026From $7524 departure dates6 Nov · found 5 days agoOpen this tripEvery date in November 2026
December 2026From $8919 departure dates1 Dec · found yesterdayOpen this tripEvery date in December 2026
January 2027From $13914 departure dates18 Jan 2027 · found 3 days agoOpen this tripEvery date in January 2027
February 2027From $9117 departure dates11 Feb 2027 · found 2 days agoOpen this tripEvery date in February 2027
March 2027From $8922 departure dates10 Mar 2027 · found yesterdayOpen this tripEvery date in March 2027
April 2027From $908 departure dates4 Apr 2027 · found 4 days agoOpen this trip
May 2027From $903 departure dates1 May 2027 · found todayOpen this trip
June 2027From $903 departure dates7 Jun 2027 · found 3 days agoOpen this trip
July 2027From $904 departure dates3 Jul 2027 · found 3 days agoOpen this trip
September 2027From $892 departure dates6 Sept 2027 · found yesterdayOpen 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