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Pattaya to Koh Samui in December 2026 UTP → USM

Utapao Airport (UTP) → Koh Samui Airport (USM)

For departures in December 2026, the cheapest return found recently is $267 with Bangkok Airways, 3 Dec – 15 Dec, found yesterday. The cheapest one-way found recently is $177 with Bangkok Airways, 26 Dec, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 13 departure dates is usually $356 to $360. Across all 45 departure dates we hold on this route, it is usually $225 to $331. Of the 6 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$267

3 Dec – 15 Dec · Bangkok Airways

Utapao Airport (UTP) → Koh Samui Airport (USM)

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 December 2026

DatesFromAirlineStopsFound
3 Dec – 15 Dec$267Bangkok Airwaysout nonstop, back nonstopfound yesterdaySee prices for these dates
2 Dec – 13 Jan 2027$273Bangkok Airwaysout nonstop, back nonstopfound 5 days agoSee prices for these dates
16 Dec – 21 Dec$323Bangkok Airwaysout nonstop, back nonstopfound 6 days agoSee prices for these dates
4 Dec – 12 Dec$356Bangkok Airwaysout nonstop, back nonstopfound 4 days agoSee prices for these dates
23 Dec – 6 Jan 2027$357Bangkok Airwaysout nonstop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

13 departure dates

2 Dec – 13 Jan 2027: $273, found 5 days ago3 Dec – 15 Dec: $267, found yesterday4 Dec – 12 Dec: $356, found 4 days ago6 Dec – 10 Dec: $358, found 6 days ago7 Dec – 7 Dec: $556, found 5 days ago15 Dec – 22 Dec: $565, found 4 days ago16 Dec – 21 Dec: $323, found 6 days ago23 Dec – 6 Jan 2027: $357, found 3 days ago25 Dec – 7 Jan 2027: $357, found 3 days ago27 Dec – 5 Jan 2027: $360, found 2 days ago28 Dec – 9 Jan 2027: $357, found 3 days ago29 Dec – 9 Jan 2027: $357, found 3 days ago30 Dec – 2 Jan 2027: $360, found 2 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
2 Dec – 13 Jan 2027$273Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
3 Dec – 15 Dec$267Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound yesterdaySee prices for these dates
4 Dec – 12 Dec$356Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
6 Dec – 10 Dec$358Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 6 days agoSee prices for these dates
7 Dec – 7 Dec$556Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back 2 stopsfound 5 days agoSee prices for these dates
15 Dec – 22 Dec$565Thai Lion AirUtapao Airport (UTP) → Koh Samui Airport (USM)out 2 stops, back nonstopfound 4 days agoSee prices for these dates
16 Dec – 21 Dec$323Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 6 days agoSee prices for these dates
23 Dec – 6 Jan 2027$357Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
25 Dec – 7 Jan 2027$357Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
27 Dec – 5 Jan 2027$360Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
28 Dec – 9 Jan 2027$357Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
29 Dec – 9 Jan 2027$357Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
30 Dec – 2 Jan 2027$360Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $169.

October 2026From $2035 departure dates30 Oct – 6 Nov · found 2 days agoSee prices for these datesEvery date in October 2026
November 2026From $169Cheapest seen12 departure dates18 Nov – 19 Nov · found 7 days agoSee prices for these datesEvery date in November 2026
December 2026From $26713 departure dates3 Dec – 15 Dec · found yesterdaySee prices for these dates
January 2027From $2487 departure dates26 Jan 2027 – 6 Feb 2027 · found 3 days agoSee prices for these datesEvery date in January 2027
February 2027From $2534 departure dates6 Feb 2027 – 6 Mar 2027 · found 6 days agoSee prices for these datesEvery date in February 2027
March 2027From $1973 departure dates6 Mar 2027 – 9 Mar 2027 · found 4 days agoSee prices for these dates
May 2027From $2241 departure date1 May 2027 – 24 May 2027 · found 5 days agoSee prices for these dates

One-way

In December 2026, the cheapest one-way fare on each of 4 departure dates is usually $171 to $177. Across all 39 departure dates we hold on this route, it is usually $92 to $134. Of the 5 months with enough one-way fares to compare, December 2026 is usually the most expensive.

Cheapest one-way found recently

$177

26 Dec · Bangkok Airways

Utapao Airport (UTP) → Koh Samui Airport (USM)

nonstop

found 2 days ago

Open this tripCheck today's price

Cheapest we hold, of any age

$163

29 Dec · Bangkok Airways

Utapao Airport (UTP) → Koh Samui Airport (USM)

nonstop

found 6 days ago

Open this tripCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
29 Dec$163Bangkok Airwaysnonstopfound 6 days agoOpen this trip
30 Dec$174Bangkok Airwaysnonstopfound 4 days agoOpen this trip
26 Dec$177Bangkok Airwaysnonstopfound 2 days agoOpen this trip
28 Dec$177Bangkok Airwaysnonstopfound 2 days agoOpen this trip

Every date we hold

4 departure dates

26 Dec: $177, found 2 days ago28 Dec: $177, found 2 days ago29 Dec: $163, found 6 days ago30 Dec: $174, found 4 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
26 Dec$177Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)nonstopfound 2 days agoOpen this trip
28 Dec$177Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)nonstopfound 2 days agoOpen this trip
29 Dec$163Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)nonstopfound 6 days agoOpen this trip
30 Dec$174Bangkok AirwaysUtapao Airport (UTP) → Koh Samui Airport (USM)nonstopfound 4 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $53.

October 2026From $787 departure dates23 Oct · found todayOpen this tripEvery date in October 2026
November 2026From $53Cheapest seen13 departure dates13 Nov · found 7 hours agoOpen this tripEvery date in November 2026
December 2026From $1634 departure dates29 Dec · found 6 days agoOpen this trip
January 2027From $1194 departure dates12 Jan 2027 · found 6 days agoOpen this tripEvery date in January 2027
February 2027From $1257 departure dates9 Feb 2027 · found todayOpen this tripEvery date in February 2027
March 2027From $802 departure dates4 Mar 2027 · found yesterdayOpen this trip
April 2027From $1281 departure date9 Apr 2027 · found 2 days agoOpen this trip
July 2027From $1421 departure date30 Jul 2027 · found 3 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