Cheap flights from Bangkok to Sydney from $268 BKK, DMK → SYD, WSI
Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK) → Sydney (Kingsford Smith) Airport (SYD), Western Sydney Airport (WSI)
The cheapest return found recently is $547 with Vietjet, 10 Jun 2027 – 12 Jun 2027, found yesterday. The cheapest one-way found recently is $268 with Vietjet, 22 Oct 2027, found 2 days ago.
- Cheapest one-way found recently
- $268, Vietjet, found 2 days ago
- Cheapest return found recently
- $547, 10 Jun 2027 to 12 Jun 2027
- Usual return price
- $550 to $602
- Cheapest month to fly
- September 2027, return fares from $535 found in the last 7 days
- Airlines with nonstop flights
- Qantas, THAI Airways
- Shortest nonstop flight found
- 9 h 15 min
Return
The cheapest return fare on each of 13 departure dates is usually $550 to $602.
Cheapest return found recently
$547
10 Jun 2027 – 12 Jun 2027 · Vietjet
Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 3:45 p.m. · Return leaves 10:15 a.m. · 39 h 25 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
$796
21 Feb 2027 – 5 Mar 2027 · Qantas
Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 6:00 p.m. · Return leaves 8:10 p.m. · 19 h 20 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Every nonstop date from Bangkok to Sydney
Found recently, and the cheapest we hold
$547 10 Jun 2027 – 12 Jun 2027found yesterdaySee prices for these dates
$535 1 Sept 2027 – 30 Sept 2027found 5 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $484 to $550.
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 13 departure dates from 16 Dec to 1 Oct 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 2-night return fares leaving within 3 days of 10 Jun 2027 to compare.
Every date we hold
328 fares on 13 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 16 Dec – 13 Jan 2027 | $544 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 19 Jan 2027 – 11 Feb 2027 | $650 | Philippine Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 22 Jan 2027 – 12 Feb 2027 | $774 | Thai Lion Air | Don Mueang International Airport (DMK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 21 Feb 2027 – 5 Mar 2027 | $563 | Shenzhen Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 22 Feb 2027 – 16 Mar 2027 | $575 | Shenzhen Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 3 Apr 2027 – 1 May 2027 | $550 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 26 Apr 2027 – 14 May 2027 | $602 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 7 Jun 2027 – 20 Jun 2027 | $551 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 10 Jun 2027 – 12 Jun 2027 | $547 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 15 Jul 2027 – 22 Jul 2027 | $634 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 23 Aug 2027 – 16 Sept 2027 | $582 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 1 Sept 2027 – 30 Sept 2027 | $535 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 1 Oct 2027 – 31 Oct 2027 | $573 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
Which month looks cheapest?
September 2027 is the cheapest month — from $535.
Airlines on the cheapest dates: Vietjet, Scoot, Shenzhen Airlines, Philippine Airlines, Thai Lion Air.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$268
22 Oct 2027 · Vietjet
Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 1:50 p.m. · 15 h 30 min trip
1 stop · via Tan Son Nhat International Airport (SGN)
found 2 days ago
Cheapest nonstop one-way
$563
22 Oct 2027 · Bangkok Airways
Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 6:10 p.m. · 9 h 15 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$268 22 Oct 2027found 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 14 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $245 to $276.
14 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?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 22 Oct 2027 to compare.
Every date we hold
19 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 22 Oct 2027 | $268 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | 1 stop | found 2 days ago | Open this trip |
Airlines on the cheapest dates: Vietjet.
Premium cabin fares from Bangkok to Sydney
Every business class date from Bangkok to Sydney
Return
Business
The lowest business fare we have seen is $2,643, across 5 departure dates.
28 Dec – 9 Jan 2027 · BKK → SYD · China Southern Airlines
out 1 stop, back 1 stop · via CAN · overnight connection · 11 h connection
found 6 days ago
That business fare is 4.9 times the economy fare of $535.
Today's prices for 10 Jun 2027 – 12 Jun 2027 in another cabin: Premium economy · Business · First
One-way
Business
The lowest business fare we have seen is $1,364, across 13 departure dates.
17 Nov · DMK → SYD · Batik Air Malaysia
1 stop · via KUL · overnight connection · 20 h connection
found 5 days ago
That business fare is 5.1 times the economy fare of $268.
First
The lowest first-class fare we have seen is $11,517, across 2 departure dates.
3 Dec · BKK → SYD · Qantas
2 stops · via TPE, SIN · overnight connection · 13 h connection
found 5 days ago
Today's prices for 22 Oct 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Bangkok to Sydney?
Return
Fares 180 or more days before departure were typically 24% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $706 | $516 | +32% | 22 |
| 7–13 days | $712 | $636 | +33% | 14 |
| 14–29 days | $683 | $536 | +28% | 31 |
| 30–59 days | $569 | $484 | +6% | 38 |
| 60–89 days | $616 | $527 | +15% | 48 |
| 90–179 days | $552 | $504 | +3% | 49 |
| 180+ days | $535 | $493 | Cheapest seen | 49 |
One-way
Not enough history yet: in 14 days of one-way prices, 24 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest return found recently is for 10 Jun 2027 – 12 Jun 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Bangkok to Sydney?
The cheapest return found recently is $547 with Vietjet, 10 Jun 2027 to 12 Jun 2027, found yesterday. The cheapest return we hold, of any age, is $535 with Vietjet, 1 Sept 2027 to 30 Sept 2027, found 5 days ago. The cheapest return fare on each of 13 departure dates is usually $550 to $602.
How much is a one-way flight from Bangkok to Sydney?
The cheapest one-way found recently is $268 with Vietjet, 22 Oct 2027, found 2 days ago.
What is the cheapest month to fly from Bangkok to Sydney?
September 2027 is the cheapest month for a return, from $535, 1 Sept 2027 to 30 Sept 2027, found 5 days ago.
How far ahead should I book a flight from Bangkok to Sydney?
In 49 days of prices between 24 Sept and 11 Nov, return fares 180 or more days before departure were typically 24% lower than 0 to 6 days before departure.
Is there a direct flight from Bangkok to Sydney?
Yes, the cheapest nonstop return found recently is $796 with Qantas, 21 Feb 2027 to 5 Mar 2027, found 2 days ago. The cheapest nonstop one-way found recently is $563 with Bangkok Airways, 22 Oct 2027, found 2 days ago.
How long is the flight from Bangkok to Sydney?
The cheapest nonstop one-way found recently, with Bangkok Airways on 22 Oct 2027, takes 9 h 15 min from Suvarnabhumi Airport (BKK) to Sydney (Kingsford Smith) Airport (SYD). The cheapest one-way found recently, with Vietjet on 22 Oct 2027, takes 15 h 30 min with 1 stop.
Which airlines have the cheapest flights from Bangkok to Sydney?
Between 16 Dec and 1 Oct 2027, Vietjet has the cheapest return on 6 of the 13 departure dates we hold, Scoot on 3 and Shenzhen Airlines on 2.
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