Bangkok to Sydney 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 $607 with Vietjet, 20 Feb 2027 – 7 Mar 2027, found 10 hours ago. The cheapest one-way found recently is $276 with Scoot, 11 Sept 2027, found yesterday.
Return
The cheapest return fare on each of 19 departure dates is usually $612 to $752.
Cheapest return found recently
$607
20 Feb 2027 – 7 Mar 2027 · Vietjet
Suvarnabhumi Airport (BKK) → Western Sydney Airport (WSI)
Leaves 4:05 p.m. · Return leaves 1:25 p.m. · 25 h 45 min of travel, both ways together
out 1 stop, back 1 stop · via Tan Son Nhat International Airport (SGN), Changi International Airport (SIN)
found 10 hours ago
Cheapest nonstop return
$877
20 Feb 2027 – 7 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 10 hours ago
Every nonstop date from Bangkok to Sydney
Found recently, and the cheapest we hold
$607 20 Feb 2027 – 7 Mar 2027found 10 hours agoSee prices for these dates
$493 10 May 2027 – 16 May 2027found 4 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 $493 to $550.
At $607, 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 19 departure dates from 21 Oct to 12 Sept 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 15-night return fares leaving within 3 days of 20 Feb 2027 to compare.
Every date we hold
285 fares on 19 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 21 Oct – 19 Dec | $733 | Philippine Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 13 Nov – 27 Nov | $778 | Batik Air Malaysia | Don Mueang International Airport (DMK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 16 Nov – 25 Nov | $691 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 19 Nov – 24 Dec | $843 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 28 Nov – 14 Dec | $770 | Philippine Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 29 Nov – 15 Dec | $879 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 3 Dec – 17 Dec | $707 | Philippine Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 7 Dec – 12 Jan 2027 | $576 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 19 Dec – 24 Jan 2027 | $616 | China Southern Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 20 Dec – 24 Jan 2027 | $616 | China Southern Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 21 Dec – 25 Jan 2027 | $617 | China Southern Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 22 Dec – 9 Jan 2027 | $618 | Xiamen Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 18 hours ago | See prices for these dates |
| 10 Feb 2027 – 22 Feb 2027 | $669 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 2 stops, back 1 stop | found 5 days ago | See prices for these dates |
| 11 Feb 2027 – 24 Feb 2027 | $681 | Thai AirAsia | Don Mueang International Airport (DMK) → Sydney (Kingsford Smith) Airport (SYD) | out 2 stops, back 1 stop | found 4 days ago | See prices for these dates |
| 20 Feb 2027 – 7 Mar 2027 | $607 | Vietjet | Suvarnabhumi Airport (BKK) → Western Sydney Airport (WSI) | out 1 stop, back 1 stop | found 10 hours ago | See prices for these dates |
| 31 Mar 2027 – 30 Apr 2027 | $595 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 7 May 2027 – 22 May 2027 | $555 | Vietjet | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 10 May 2027 – 16 May 2027 | $493 | Thai AirAsia | Don Mueang International Airport (DMK) → Sydney (Kingsford Smith) Airport (SYD) | out 2 stops, back 1 stop | found 4 days ago | See prices for these dates |
| 12 Sept 2027 – 12 Sept 2027 | $1,565 | THAI Airways | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | out nonstop, back 2 stops | found 2 days ago | See prices for these dates |
Which month looks cheapest?
May 2027 is the cheapest month — from $493.
Airlines on the cheapest dates: Scoot, Philippine Airlines, China Southern Airlines, Vietjet, Thai AirAsia, Batik Air Malaysia, Xiamen Airlines, THAI Airways.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$276
11 Sept 2027 · Scoot
Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 4:50 p.m. · 23 h 30 min trip
1 stop · via Changi International Airport (SIN) · overnight connection · 13 h connection
found yesterday
Cheapest nonstop one-way
$507
11 Sept 2027 · THAI Airways
Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 8:30 a.m. · 9 h trip
nonstop
found yesterday
Found recently, and the cheapest we hold
$276 11 Sept 2027found yesterdayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 12 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $245 to $276.
At $276, the cheapest one-way found recently is at the high end of that range.
12 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 2 departure dates and need at least 3 to say what is usual.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 11 Sept 2027, and it is not cheaper.
Every date we hold
9 fares on 2 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 11 Sept 2027 | $276 | Scoot | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | 1 stop | found yesterday | Open this trip |
| 12 Sept 2027 | $324 | Vietnam Airlines | Suvarnabhumi Airport (BKK) → Sydney (Kingsford Smith) Airport (SYD) | 1 stop | found 2 days ago | Open this trip |
Airlines on the cheapest dates: Scoot, Vietnam Airlines.
Premium cabin fares from Bangkok to Sydney
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 20 Feb 2027 – 7 Mar 2027 in another cabin: Premium economy · Business · First
Today's prices for 11 Sept 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 25% 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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $678 | $594 | +33% | 10 |
| 14–29 days | $605 | $536 | +19% | 21 |
| 30–59 days | $685 | $561 | +34% | 16 |
| 60–89 days | $567 | $527 | +11% | 25 |
| 90–179 days | $584 | $515 | +15% | 25 |
| 180+ days | $510 | $493 | Cheapest seen | 25 |
One-way
Not enough history yet: in 12 days of one-way prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Pattaya → Sydney
101 km from Bangkok
$977
$370 more than flying from Bangkok
19 Dec – 9 Jan 2027 · UTP → SYD · out 1 stop, back 3 stops
found today
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 20 Feb 2027 – 7 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