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Rome to Bangkok flights in December 2026 from $1,160 CIA, FCO, XRJ → BKK, DMK

Ciampino-G. B. Pastine International Airport (CIA), Leonardo da Vinci-Fiumicino Airport (FCO), Termini Railway. (XRJ) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

For departures in December 2026, the cheapest return found recently is $1,160 with THAI Airways, 19 Dec – 5 Jan 2027, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 7 departure dates is usually $728 to $986. Across all 19 departure dates we hold on this route, it is usually $612 to $861. Of the 3 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$1,160

19 Dec – 5 Jan 2027 · THAI Airways

Leonardo da Vinci-Fiumicino Airport (FCO) → Suvarnabhumi Airport (BKK)

out 1 stop, back 1 stop

found 2 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$545

14 Dec – 21 Dec · Oman Air

Leonardo da Vinci-Fiumicino Airport (FCO) → Suvarnabhumi Airport (BKK)

out 1 stop, back 1 stop

found 8 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
14 Dec – 21 Dec$545Oman Airout 1 stop, back 1 stopfound 8 days agoSee prices for these dates
4 Dec – 12 Dec$638Air Chinaout 1 stop, back 1 stopfound 5 days agoSee prices for these dates
17 Dec – 12 Jan 2027$817Air Arabiaout 1 stop, back 1 stopfound 5 days agoSee prices for these dates
5 Dec – 4 Jan 2027$823Qatar Airwaysout 1 stop, back 1 stopfound 4 days agoSee prices for these dates
31 Dec – 12 Jan 2027$826Qatar Airwaysout 1 stop, back 1 stopfound 3 days agoSee prices for these dates

Every date we hold

7 departure dates

4 Dec – 12 Dec: $638, found 5 days ago5 Dec – 4 Jan 2027: $823, found 4 days ago14 Dec – 21 Dec: $545, found 8 days ago17 Dec – 12 Jan 2027: $817, found 5 days ago19 Dec – 5 Jan 2027: $1,160, found 2 days ago28 Dec – 9 Jan 2027: $1,146, found 5 days ago31 Dec – 12 Jan 2027: $826, found 3 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
4 Dec – 12 Dec$638Air ChinaLeonardo da Vinci-Fiumicino Airport (FCO) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
5 Dec – 4 Jan 2027$823Qatar AirwaysLeonardo da Vinci-Fiumicino Airport (FCO) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
14 Dec – 21 Dec$545Oman AirLeonardo da Vinci-Fiumicino Airport (FCO) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 8 days agoSee prices for these dates
17 Dec – 12 Jan 2027$817Air ArabiaLeonardo da Vinci-Fiumicino Airport (FCO) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
19 Dec – 5 Jan 2027$1,160THAI AirwaysLeonardo da Vinci-Fiumicino Airport (FCO) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
28 Dec – 9 Jan 2027$1,146Air ArabiaCiampino-G. B. Pastine International Airport (CIA) → Suvarnabhumi Airport (BKK)out 3 stops, back 2 stopsfound 5 days agoSee prices for these dates
31 Dec – 12 Jan 2027$826Qatar AirwaysLeonardo da Vinci-Fiumicino Airport (FCO) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $545.

November 2026From $5473 departure dates18 Nov – 29 Nov · found 3 days agoSee prices for these dates
December 2026From $545Cheapest seen7 departure dates14 Dec – 21 Dec · found 8 days agoSee prices for these dates
January 2027From $6094 departure dates26 Jan 2027 – 4 Feb 2027 · found 2 days agoSee prices for these dates
February 2027From $5912 departure dates7 Feb 2027 – 1 Mar 2027 · found 3 days agoSee prices for these dates
March 2027From $6531 departure date9 Mar 2027 – 22 Mar 2027 · found 4 days agoSee prices for these dates
May 2027From $5651 departure date3 May 2027 – 18 May 2027 · found 2 days agoSee prices for these dates
August 2027From $8961 departure date6 Aug 2027 – 27 Aug 2027 · found 3 days 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