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Nonstop flights from Sydney to Bangkok from $468 SYD, WSI → BKK, DMK

Sydney (Kingsford Smith) Airport (SYD), Western Sydney Airport (WSI) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

The cheapest nonstop return found recently is $1,913 with THAI Airways, 16 Dec – 3 Jan 2027, found 2 days ago.

Nonstop return

The cheapest nonstop return fare on each of 11 departure dates is usually $935 to $1,620.

Cheapest nonstop return

$1,913

16 Dec – 3 Jan 2027 · THAI Airways

Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)

Leaves 3:25 p.m. · Return leaves 5:55 p.m. · 18 h 45 min of travel, both ways together

out nonstop, back nonstop

found 2 days ago

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Airlines flying it nonstop on the return fares we hold: THAI Airways (7 departure dates), Qantas (4 departure dates), Bangkok Airways (2 departure dates).

On the 12 trips where we hold both on the same dates, nonstop cost a median $287 (44.8%) more than the cheapest fare with stops. Nonstop was cheaper or the same price on 0 of those 12 trips.

Every nonstop date we hold

Nonstop fares on 11 of the 19 departure dates we hold for this route.

13 Nov – 22 Nov: $916, found 4 days ago16 Dec – 3 Jan 2027: $1,843, found 8 days ago17 Dec – 3 Jan 2027: $2,027, found 2 days ago24 Dec – 31 Dec: $1,396, found 6 days ago27 Dec – 11 Jan 2027: $2,016, found 2 days ago18 Jan 2027 – 1 Feb 2027: $1,178, found 4 days ago19 Jan 2027 – 4 Feb 2027: $953, found 5 days ago20 Jan 2027 – 4 Feb 2027: $953, found 5 days ago8 Apr 2027 – 26 Apr 2027: $978, found 3 days ago9 May 2027 – 22 May 2027: $765, found 7 days ago23 Jun 2027 – 18 Aug 2027: $737, found 3 days agoNovDecJanAprMayJun
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
13 Nov – 22 Nov$916THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
16 Dec – 3 Jan 2027$1,843THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 8 days agoSee prices for these dates
17 Dec – 3 Jan 2027$2,027THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
24 Dec – 31 Dec$1,396QantasSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
27 Dec – 11 Jan 2027$2,016THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
18 Jan 2027 – 1 Feb 2027$1,178Bangkok AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
19 Jan 2027 – 4 Feb 2027$953QantasSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
20 Jan 2027 – 4 Feb 2027$953QantasSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
8 Apr 2027 – 26 Apr 2027$978THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
9 May 2027 – 22 May 2027$765THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
23 Jun 2027 – 18 Aug 2027$737THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 3 days agoSee prices for these dates

Nonstop one-way

The cheapest nonstop one-way fare on each of 6 departure dates is usually $473 to $584.

Cheapest nonstop one-way

$468

27 Jul 2027 · Bangkok Airways

Sydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)

Leaves 9:50 a.m. · 9 h 50 min trip

nonstop

found 3 days ago

Open this tripCheck today's price

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Airlines flying it nonstop on the one-way fares we hold: THAI Airways (5 departure dates), Qantas (3 departure dates).

On the 6 trips where we hold both on the same dates, nonstop cost a median $217 (81.2%) more than the cheapest fare with stops. Nonstop was cheaper or the same price on 0 of those 6 trips.

Every nonstop date we hold

Nonstop fares on 6 of the 6 departure dates we hold for this route.

19 Jan 2027: $479, found 4 days ago22 Mar 2027: $612, found 3 days ago1 Jul 2027: $626, found 8 days ago27 Jul 2027: $468, found 3 days ago26 Oct 2027: $471, found 8 days ago28 Oct 2027: $501, found 3 days agoJanMarJulOct
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
19 Jan 2027$479THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
22 Mar 2027$612QantasSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
1 Jul 2027$626THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)nonstopfound 8 days agoSee prices for these dates
27 Jul 2027$468Bangkok AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)nonstopfound 3 days agoOpen this trip
26 Oct 2027$471THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)nonstopfound 8 days agoSee prices for these dates
28 Oct 2027$501THAI AirwaysSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)nonstopfound 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