Skip to content
FareTell

Sydney to Bangkok SYD, WSI → BKK, DMK

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

The cheapest return found recently is $508 with China Southern Airlines, 26 Feb 2027 – 5 Mar 2027, found 16 hours ago. The cheapest one-way found recently is $268 with Xiamen Airlines, 20 Oct, found yesterday.

Return

The cheapest return fare on each of 21 departure dates is usually $519 to $960.

Cheapest return found recently

$508

26 Feb 2027 – 5 Mar 2027 · China Southern Airlines

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

Leaves 3:10 p.m. · Return leaves 4:20 p.m. · 30 h 55 min of travel, both ways together

out 1 stop, back 1 stop · via Guangzhou Baiyun International Airport (CAN)

found 16 hours ago

See prices for these datesCheck today's price

Cheapest nonstop return

$767

27 Nov – 8 Dec · THAI Airways

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

Leaves 3:25 p.m. · Return leaves 7:55 a.m. · 18 h 45 min of travel, both ways together

out nonstop, back nonstop

found 21 hours ago

See prices for these datesCheck today's price

FareTell may earn a commission when you book through a partner.

Found recently, and the cheapest we hold

Cheapest found recently $508 26 Feb 2027 – 5 Mar 2027found 16 hours agoSee prices for these dates

Cheapest we hold, of any age $412 21 Oct – 7 Novfound 6 days agoSee prices for these dates

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $412 to $458.

At $508, the cheapest return found recently is above that range.

25 days is a short history, so treat this range as an early guide.

Those were the prices on those days, not today's.

Is this a good return price?

Compared with the cheapest return fare on each of 21 departure dates from 21 Oct to 26 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other 7-night return fares leaving within 3 days of 26 Feb 2027 to compare.

Every date we hold

225 fares on 21 departure dates

21 Oct – 7 Nov: $412, found 6 days ago30 Oct – 14 Nov: $519, found today1 Nov – 13 Nov: $500, found 6 days ago7 Nov – 16 Nov: $488, found 2 days ago9 Nov – 15 Nov: $525, found 6 days ago11 Nov – 30 Nov: $544, found 3 days ago27 Nov – 7 Dec: $632, found 21 hours ago29 Nov – 6 Dec: $684, found yesterday2 Dec – 12 Dec: $642, found yesterday10 Dec – 1 Jan 2027: $960, found 6 days ago15 Dec – 12 Jan 2027: $1,259, found 6 days ago17 Dec – 2 Jan 2027: $1,188, found 3 days ago20 Dec – 28 Jan 2027: $1,317, found yesterday23 Dec – 26 Jan 2027: $1,075, found yesterday3 Jan 2027 – 15 Jan 2027: $1,002, found 3 days ago4 Jan 2027 – 16 Jan 2027: $957, found 3 days ago5 Jan 2027 – 15 Jan 2027: $736, found yesterday11 Jan 2027 – 19 Jan 2027: $682, found 6 days ago15 Jan 2027 – 16 Mar 2027: $510, found 3 days ago11 Feb 2027 – 24 Feb 2027: $567, found 3 days ago26 Feb 2027 – 5 Mar 2027: $508, found 16 hours agoOctNovDecJanFeb
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
21 Oct – 7 Nov$412Xiamen AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
30 Oct – 14 Nov$519ScootSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound todaySee prices for these dates
1 Nov – 13 Nov$500China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
7 Nov – 16 Nov$488Xiamen AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
9 Nov – 15 Nov$525China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
11 Nov – 30 Nov$544Xiamen AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
27 Nov – 7 Dec$632ScootSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 21 hours agoSee prices for these dates
29 Nov – 6 Dec$684Batik Air MalaysiaSydney (Kingsford Smith) Airport (SYD) → Don Mueang International Airport (DMK)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
2 Dec – 12 Dec$642Xiamen AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
10 Dec – 1 Jan 2027$960China EasternSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
15 Dec – 12 Jan 2027$1,259Batik Air MalaysiaSydney (Kingsford Smith) Airport (SYD) → Don Mueang International Airport (DMK)out 3 stops, back 3 stopsfound 6 days agoSee prices for these dates
17 Dec – 2 Jan 2027$1,188JetstarWestern Sydney Airport (WSI) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
20 Dec – 28 Jan 2027$1,317JetstarWestern Sydney Airport (WSI) → Don Mueang International Airport (DMK)out 2 stops, back 2 stopsfound yesterdaySee prices for these dates
23 Dec – 26 Jan 2027$1,075Philippine AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
3 Jan 2027 – 15 Jan 2027$1,002China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
4 Jan 2027 – 16 Jan 2027$957China EasternSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
5 Jan 2027 – 15 Jan 2027$736China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
11 Jan 2027 – 19 Jan 2027$682China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
15 Jan 2027 – 16 Mar 2027$510China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
11 Feb 2027 – 24 Feb 2027$567VietjetSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
26 Feb 2027 – 5 Mar 2027$508China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 16 hours agoSee prices for these dates

Which month looks cheapest?

October 2026 is the cheapest month — from $412.

October 2026From $412Cheapest seen2 departure dates21 Oct – 7 Nov · found 6 days agoSee prices for these dates
November 2026From $4886 departure dates7 Nov – 16 Nov · found 2 days agoSee prices for these dates
December 2026From $6426 departure dates2 Dec – 12 Dec · found yesterdaySee prices for these dates
January 2027From $5105 departure dates15 Jan 2027 – 16 Mar 2027 · found 3 days agoSee prices for these dates
February 2027From $5082 departure dates26 Feb 2027 – 5 Mar 2027 · found 16 hours agoSee prices for these dates

Airlines on the cheapest dates: China Southern Airlines, Xiamen Airlines, Scoot, Batik Air Malaysia, China Eastern, Jetstar, Philippine Airlines, Vietjet.

One-way

The cheapest one-way fare on each of 5 departure dates is usually $252 to $269.

Cheapest one-way found recently

$268

20 Oct · Xiamen Airlines

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

Leaves 12:25 p.m. · 16 h 25 min trip

1 stop · via Xiamen Gaoqi International Airport (XMN)

found yesterday

Open this tripCheck today's price

Cheapest nonstop one-way

$474

20 Oct · Qantas

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

Leaves 10:50 a.m. · 9 h 50 min trip

nonstop

found yesterday

Open this tripCheck today's price

FareTell may earn a commission when you book through a partner.

Found recently, and the cheapest we hold

Cheapest found recently $268 20 Octfound yesterdayOpen this trip

Cheapest we hold, of any age $251 25 Octfound 6 days agoOpen this trip

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $219 to $252.

At $268, the cheapest one-way found recently is above that range.

25 days is a short history, so treat this range as an early guide.

Those were the prices on those days, not today's.

Is this a good one-way price?

Compared with the cheapest one-way fare on each of 5 departure dates from 20 Oct to 4 Mar 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 20 Oct to compare.

Every date we hold

53 fares on 5 departure dates

20 Oct: $268, found yesterday25 Oct: $251, found 6 days ago19 Jan 2027: $252, found 4 days ago23 Jan 2027: $353, found 3 days ago4 Mar 2027: $269, found 3 days agoOctJanMar
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
20 Oct$268Xiamen AirlinesSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)1 stopfound yesterdayOpen this trip
25 Oct$251AirAsia XSydney (Kingsford Smith) Airport (SYD) → Don Mueang International Airport (DMK)1 stopfound 6 days agoOpen this trip
19 Jan 2027$252ScootSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)1 stopfound 4 days agoOpen this trip
23 Jan 2027$353Singapore AirlinesWestern Sydney Airport (WSI) → Suvarnabhumi Airport (BKK)1 stopfound 3 days agoOpen this trip
4 Mar 2027$269ScootSydney (Kingsford Smith) Airport (SYD) → Suvarnabhumi Airport (BKK)1 stopfound 3 days agoOpen this trip

Which month looks cheapest?

October 2026 is the cheapest month — from $251.

October 2026From $251Cheapest seen2 departure dates25 Oct · found 6 days agoOpen this trip
January 2027From $2522 departure dates19 Jan 2027 · found 4 days agoOpen this trip
March 2027From $2691 departure date4 Mar 2027 · found 3 days agoOpen this trip

Airlines on the cheapest dates: Scoot, Xiamen Airlines, AirAsia X, Singapore Airlines.

Premium cabin fares from Sydney to Bangkok

Return

We looked for premium economy, business and first-class return fares on this route, and hold none found in the last 7 days.

Today's prices for 26 Feb 2027 – 5 Mar 2027 in another cabin: Premium economy · Business · First

One-way

Business

The lowest business fare we have seen is $1,163, across 2 departure dates.

28 Oct · SYD → BKK · Vietjet

2 stops · via SGN, DAD · overnight connection · 13 h connection

found 5 days ago

That business fare is 4.6 times the economy fare of $251.

See prices for these datesCheck today's price

FareTell may earn a commission when you book through a partner.

Today's prices for 20 Oct in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Sydney to Bangkok?

Return

Fares 14 to 29 days before departure were typically 13% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

See these ranges as a table
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$506$412+15%19
7–13 days$518$412+18%14
14–29 days$441$433Cheapest seen25
30–59 days$474$450+8%25
60–89 days$886$510+101%25
90–179 days$499$496+13%25

One-way

Not enough history yet: in 25 days of one-way prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.

Live price for these dates

The cheapest return found recently is for 26 Feb 2027 – 5 Mar 2027. A live search on this page shows what those dates cost now, for one adult in economy.

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