Route brief · BKK → SYD
Bangkok → Sydney
$468
−9% vs typical
seasonal median $515 · difference $47
Jun 7 '27 – Jun 20 '27 · 13 nights
Thai Vietjet Air2 stops
- Usual monthly lows
- $492–$544
- Board rank
- Stronger than 17%
- Route sample
- 9 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefSYDSydneyHarbour sails, cliff walks and flat whites that ruin you for coffee anywhere else.Best windowOct–Nov · Mar–AprAirportsKingsford Smith (SYD)All routes into SydneyWhen this route gets cheap.
Cached-fare history: across 9 months, Jun is the cheapest for BKK → SYD. Best time to be there: Oct–Nov · Mar–Apr.
Fares bottom out in June around $468 and peak in January near $644 — a $176 spread across the 9 months we track. The cheapest itinerary we are tracking makes 2 stops and takes about 12 hours outbound, on a 13-night trip — ticketed under Thai Vietjet Air, which on a connecting fare need not operate every leg. At $468 for 7,536 km each way, that works out to about $31 per 1,000 km flown. That is below the $44 typical of long-haul fares here. Across the 9 departure cities we track at a similar distance from Sydney, this fare ranks 4th — 21% above the $388 from Singapore. It is also the 2nd cheapest of the 28 routes of similar length we watch out of Bangkok.
Cheapest day in the next 4 months: Oct 19 · $490 (14% below median)
Tap any day → live search
The median cached fare across this calendar is 10% higher than when tracking began on Aug 8 — $521 then versus $572 now, across 6 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $464, on Nov 1.
September 2026
October 2026
Cheapest in Jun · around $468
9% below the $515 typical fare
Cheapest round-trip fare found per month · Bangkok → Sydney · cached-price history
Route facts
- Airports
- Suvarnabhumi (BKK) · Don Mueang (DMK) ↔ Kingsford Smith (SYD)
- Flight time
- ~12 hours outbound
- Distance
- ~7,536 km each way
- Typical price
- $515 round-trip (seasonal median)
- Airlines on the board
- Thai Vietjet Air
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Nov · Mar–Apr
BKK → SYD, answered.
Is $468 a good price for Bangkok to Sydney?
Only slightly. The seasonal median is around $515 round-trip and this fare is 9% under it, about $47. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from Bangkok to Sydney?
Across 9 months of cached-fare history, Jun comes out cheapest on this route. The best months to actually be in Sydney are Oct–Nov · Mar–Apr — when those overlap, that's your window.
How far in advance should I book BKK → Sydney?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 9 months of cached fares, Jun comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from Bangkok to Sydney?
The current cheapest fares involve a connection, ticketed under Thai Vietjet Air. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Sydney?
Lock the flight first — then compare stays for Jun 7 '27 – Jun 20 '27 · 13 nights.
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Missed it?
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