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Pattaya to Bangkok flights in December 2026 from $159 UTP → BKK, DMK

Utapao Airport (UTP) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

For departures in December 2026, the cheapest return found recently is $357 with Thai Lion Air, 2 Dec – 16 Dec, found 2 days ago. The cheapest one-way found recently is $159 with Thai Lion Air, 13 Dec, found 3 days ago.

Return

In December 2026, the cheapest return fare on each of 3 departure dates is usually $325 to $348. Across all 11 departure dates we hold on this route, it is usually $293 to $331. Of the 2 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$357

2 Dec – 16 Dec · Thai Lion Air

Utapao Airport (UTP) → Don Mueang International Airport (DMK)

out 1 stop, back 1 stop

found 2 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$311

5 Dec – 6 Dec · Thai Lion Air

Utapao Airport (UTP) → Don Mueang International Airport (DMK)

out 1 stop, back 1 stop

found 5 days ago

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
5 Dec – 6 Dec$311Thai Lion Airout 1 stop, back 1 stopfound 5 days agoSee prices for these dates
6 Dec – 10 Dec$339Thai Lion Airout 1 stop, back 1 stopfound 3 days agoSee prices for these dates
2 Dec – 16 Dec$357Thai Lion Airout 1 stop, back 1 stopfound 2 days agoSee prices for these dates

Every date we hold

3 departure dates

2 Dec – 16 Dec: $357, found 2 days ago5 Dec – 6 Dec: $311, found 5 days ago6 Dec – 10 Dec: $339, found 3 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
2 Dec – 16 Dec$357Thai Lion AirUtapao Airport (UTP) → Don Mueang International Airport (DMK)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
5 Dec – 6 Dec$311Thai Lion AirUtapao Airport (UTP) → Don Mueang International Airport (DMK)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
6 Dec – 10 Dec$339Thai Lion AirUtapao Airport (UTP) → Don Mueang International Airport (DMK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates

Which month looks cheapest?

March 2027 is the cheapest month — from $212.

November 2026From $3221 departure date28 Nov – 30 Nov · found 6 days agoSee prices for these dates
December 2026From $3113 departure dates5 Dec – 6 Dec · found 5 days agoSee prices for these dates
January 2027From $3112 departure dates10 Jan 2027 – 22 Jan 2027 · found 5 days agoSee prices for these dates
February 2027From $2904 departure dates15 Feb 2027 – 5 Mar 2027 · found 2 days agoSee prices for these dates
March 2027From $212Cheapest seen1 departure date19 Mar 2027 – 30 Mar 2027 · found 4 days agoSee prices for these dates

One-way

In December 2026, the cheapest one-way fare on each of 7 departure dates is usually $148 to $166. Across all 13 departure dates we hold on this route, it is usually $137 to $162. Of the 2 months with enough one-way fares to compare, December 2026 is usually the most expensive.

Cheapest one-way found recently

$159

13 Dec · Thai Lion Air

Utapao Airport (UTP) → Don Mueang International Airport (DMK)

1 stop

found 3 days ago

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Cheapest we hold, of any age

$147

14 Dec · Thai Lion Air

Utapao Airport (UTP) → Don Mueang International Airport (DMK)

1 stop

found 5 days ago

Open this tripCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
14 Dec$147Thai Lion Air1 stopfound 5 days agoOpen this trip
16 Dec$147Thai Lion Air1 stopfound 5 days agoOpen this trip
21 Dec$149Thai Lion Air1 stopfound 4 days agoOpen this trip
13 Dec$159Thai Lion Air1 stopfound 3 days agoOpen this trip
30 Dec$162Thai Lion Air1 stopfound 7 days agoOpen this trip

Every date we hold

7 departure dates

13 Dec: $159, found 3 days ago14 Dec: $147, found 5 days ago15 Dec: $181, found 3 days ago16 Dec: $147, found 5 days ago17 Dec: $169, found 4 days ago21 Dec: $149, found 4 days ago30 Dec: $162, found 7 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
13 Dec$159Thai Lion AirUtapao Airport (UTP) → Don Mueang International Airport (DMK)1 stopfound 3 days agoOpen this trip
14 Dec$147Thai Lion AirUtapao Airport (UTP) → Don Mueang International Airport (DMK)1 stopfound 5 days agoOpen this trip
15 Dec$181Thai Lion AirUtapao Airport (UTP) → Suvarnabhumi Airport (BKK)1 stopfound 3 days agoOpen this trip
16 Dec$147Thai Lion AirUtapao Airport (UTP) → Don Mueang International Airport (DMK)1 stopfound 5 days agoOpen this trip
17 Dec$169Thai Lion AirUtapao Airport (UTP) → Suvarnabhumi Airport (BKK)1 stopfound 4 days agoOpen this trip
21 Dec$149Thai Lion AirUtapao Airport (UTP) → Don Mueang International Airport (DMK)1 stopfound 4 days agoOpen this trip
30 Dec$162Thai Lion AirUtapao Airport (UTP) → Don Mueang International Airport (DMK)1 stopfound 7 days agoOpen this trip

Which month looks cheapest?

March 2027 is the cheapest month — from $84.

December 2026From $1477 departure dates14 Dec · found 5 days agoOpen this trip
January 2027From $942 departure dates6 Jan 2027 · found 6 days agoOpen this trip
February 2027From $1601 departure date22 Feb 2027 · found 7 days agoOpen this trip
March 2027From $84Cheapest seen3 departure dates19 Mar 2027 · found 4 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