Pattaya to Koh Samui flights in December 2026 from $109 UTP → USM
Utapao Airport (UTP) → Koh Samui Airport (USM)
For departures in December 2026, the cheapest return found recently is $234 with Bangkok Airways, 3 Dec – 5 Dec, found 2 days ago. The cheapest one-way found recently is $109 with Bangkok Airways, 2 Dec, found 2 days ago.
Return
In December 2026, the cheapest return fare on each of 15 departure dates is usually $354 to $502. Across all 49 departure dates we hold on this route, it is usually $259 to $355. Of the 5 months with enough return fares to compare, December 2026 is usually the most expensive.
Cheapest return found recently
$234
3 Dec – 5 Dec · Bangkok Airways
Utapao Airport (UTP) → Koh Samui Airport (USM)
out nonstop, back nonstop
found 2 days ago
It is also the cheapest return we hold, of any age.
The cheapest dates in December 2026
| Dates | From | Airline | Stops | Found | |
|---|---|---|---|---|---|
| 3 Dec – 5 Dec | $234 | Bangkok Airways | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 16 Dec – 19 Dec | $320 | Bangkok Airways | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 12 Dec – 19 Dec | $322 | Bangkok Airways | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 17 Dec – 20 Dec | $354 | Bangkok Airways | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 28 Dec – 11 Jan 2027 | $354 | Bangkok Airways | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
Every date we hold
15 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 3 Dec – 5 Dec | $234 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 7 Dec – 11 Dec | $455 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back 1 stop | found 2 days ago | See prices for these dates |
| 8 Dec – 10 Dec | $495 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back 1 stop | found 4 days ago | See prices for these dates |
| 9 Dec – 11 Dec | $396 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back 1 stop | found 4 days ago | See prices for these dates |
| 12 Dec – 19 Dec | $322 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 16 Dec – 19 Dec | $320 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 17 Dec – 20 Dec | $354 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 21 Dec – 21 Dec | $565 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back 2 stops | found 3 days ago | See prices for these dates |
| 24 Dec – 24 Dec | $508 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back 2 stops | found 4 days ago | See prices for these dates |
| 26 Dec – 3 Jan 2027 | $355 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 27 Dec – 7 Jan 2027 | $357 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 28 Dec – 11 Jan 2027 | $354 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 29 Dec – 3 Jan 2027 | $516 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out 1 stop, back nonstop | found 3 days ago | See prices for these dates |
| 30 Dec – 1 Jan 2027 | $517 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out 1 stop, back nonstop | found 7 days ago | See prices for these dates |
| 31 Dec – 11 Jan 2027 | $354 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $102.
One-way
In December 2026, the cheapest one-way fare on each of 12 departure dates is usually $123 to $174. Across all 43 departure dates we hold on this route, it is usually $102 to $151. Of the 5 months with enough one-way fares to compare, December 2026 is usually the most expensive.
Cheapest one-way found recently
$109
2 Dec · Bangkok Airways
Utapao Airport (UTP) → Koh Samui Airport (USM)
nonstop
found 2 days ago
It is also the cheapest one-way we hold, of any age.
The cheapest dates in December 2026
| Dates | From | Airline | Stops | Found | |
|---|---|---|---|---|---|
| 2 Dec | $109 | Bangkok Airways | nonstop | found 2 days ago | Open this trip |
| 3 Dec | $118 | Bangkok Airways | nonstop | found 2 days ago | Open this trip |
| 9 Dec | $121 | Bangkok Airways | nonstop | found 3 days ago | Open this trip |
| 5 Dec | $123 | Bangkok Airways | nonstop | found 2 days ago | Open this trip |
| 11 Dec | $128 | Bangkok Airways | nonstop | found 3 days ago | Open this trip |
Every date we hold
12 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 2 Dec | $109 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 2 days ago | Open this trip |
| 3 Dec | $118 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 2 days ago | Open this trip |
| 5 Dec | $123 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 2 days ago | Open this trip |
| 7 Dec | $167 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 3 days ago | Open this trip |
| 8 Dec | $175 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 6 days ago | Open this trip |
| 9 Dec | $121 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 3 days ago | Open this trip |
| 11 Dec | $128 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 3 days ago | Open this trip |
| 13 Dec | $175 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 3 days ago | Open this trip |
| 17 Dec | $175 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 4 days ago | Open this trip |
| 23 Dec | $174 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 2 days ago | Open this trip |
| 28 Dec | $174 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 2 days ago | Open this trip |
| 31 Dec | $165 | Bangkok Airways | Utapao Airport (UTP) → Koh Samui Airport (USM) | nonstop | found 5 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $40.
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