Sydney to Bangkok flights in December 2026 from $1,232 SYD, WSI → BKK, DMK
Sydney (Kingsford Smith) Airport (SYD), Western Sydney Airport (WSI) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)
For departures in December 2026, the cheapest return found recently is $1,232 with China Eastern, 17 Dec – 3 Jan 2027, found 2 days ago.
Return
In December 2026, the cheapest return fare on each of 10 departure dates is usually $1,070 to $1,255. Across all 19 departure dates we hold on this route, it is usually $647 to $1,217. Of the 2 months with enough return fares to compare, December 2026 is usually the most expensive.
Cheapest return found recently
$1,232
17 Dec – 3 Jan 2027 · China Eastern
Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)
out 1 stop, back 1 stop
found 2 days ago
Cheapest we hold, of any age
$797
6 Dec – 12 Dec · Scoot
Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)
out 1 stop, back 1 stop
found 3 days ago
The cheapest dates in December 2026
| Dates | From | Airline | Stops | Found | |
|---|---|---|---|---|---|
| 6 Dec – 12 Dec | $797 | Scoot | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 10 Dec – 20 Dec | $877 | China Eastern | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 7 Dec – 17 Jan 2027 | $1,068 | China Eastern | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 24 Dec – 30 Dec | $1,076 | China Eastern | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 22 Dec – 15 Jan 2027 | $1,202 | Garuda Indonesia | out 2 stops, back 1 stop | found 4 days ago | See prices for these dates |
Every date we hold
10 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 6 Dec – 12 Dec | $797 | Scoot | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 7 Dec – 17 Jan 2027 | $1,068 | China Eastern | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 10 Dec – 20 Dec | $877 | China Eastern | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 16 Dec – 3 Jan 2027 | $1,239 | China Eastern | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 17 Dec – 3 Jan 2027 | $1,232 | China Eastern | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 18 Dec – 3 Jan 2027 | $1,386 | Hainan Airlines | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 22 Dec – 15 Jan 2027 | $1,202 | Garuda Indonesia | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 2 stops, back 1 stop | found 4 days ago | See prices for these dates |
| 24 Dec – 30 Dec | $1,076 | China Eastern | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 26 Dec – 2 Jan 2027 | $4,538 | Jetstar | Western Sydney Airport (WSI) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 27 Dec – 11 Jan 2027 | $1,260 | China Eastern | Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
May 2027 is the cheapest month — from $526.
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