Rare1 stop · 12h
SYD to HANVietnam
Hanoi
$484
usually $885
−45%
Most monthly lows $487–$885. Cheaper than every other month on record (3).
Flights · SYD → BKK
Sydney to Bangkok
Best fare, round trip
$412
−19%
below its usual $510
you keep $98
Found
- Depart
- Wed 21 Oct
- Return
- Sat 7 Nov
- Stay
- 17 nights
- Flight
- 1 stop · 13h
- Airline
Xiamen Airlines
Most of this route’s monthly lows fall between $488 and $572. The drop beats 52% of measured fares on the board, over 6 observed months.
Cached fare — the booking search re-prices live before you pay.
ThailandBangkokThe backpacker cliché that still delivers: gold temples, boat noodles, $12 street-food feasts.Best windowNov–FebAirportsSuvarnabhumi (BKK) · Don Mueang (DMK)Every route into BangkokFare seasonality
When this route gets cheap.
Fares bottom out in October around $412 and peak in December near $636, 54% dearer, across the 6 months we track. The cheapest itinerary we are tracking makes one stop and takes about 13 hours outbound, on a 17-night trip — ticketed under Xiamen Airlines, which on a connecting fare need not operate every leg. At $412 for 7,536 km each way, that works out to about $27 per 1,000 km flown. That is well under the $44 per 1,000 km that long-haul fares on this board typically run. Of the 15 departure cities we track at a similar distance from Bangkok, this is the cheapest right now — 13% under the next one, Brussels. It is also the 3rd cheapest of the 18 routes of similar length we watch out of Sydney. The best time to be in Bangkok: Nov–Feb.
Day-level prices for the next 4 months
Press a day to compare its fares
The median cached fare across this calendar is 89% higher than when tracking began on 8 Aug — $505 then versus $955 now, across 18 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 $412, on 21 Oct.
Cached day-level data for this route is sparse — 19 of 111 days priced, from 101 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
October 2026
November 2026
Sunday 1 November: $500. Compare fares from this day.2345678Monday 9 November: $525. Compare fares from this day.1011121314151617Wednesday 18 November: $525. Compare fares from this day.192021Sunday 22 November: $540. Compare fares from this day.23242526272829Monday 30 November: $686. Compare fares from this day.
December 2026
Tuesday 1 December: $636. Compare fares from this day.234567891011121314Tuesday 15 December: $1.3k. Compare fares from this day.1617Friday 18 December: $1.3k. Compare fares from this day.Saturday 19 December: $971. Compare fares from this day.2021Tuesday 22 December: $1.2k. Compare fares from this day.Wednesday 23 December: $955. Compare fares from this day.Thursday 24 December: $976. Compare fares from this day.Friday 25 December: $1.3k. Compare fares from this day.26Sunday 27 December: $1.2k. Compare fares from this day.282930Thursday 31 December: $1.1k. Compare fares from this day.
January 2027
1Saturday 2 January: $1.5k. Compare fares from this day.345678910Monday 11 January: $682. Compare fares from this day.12131415161718192021222324252627282930Sunday 31 January: $611. Compare fares from this day.
Cached fares · checked 13 Oct 2026
Cheapest in Oct, around $412
19% below the $510 typical fare
$412Oct, the cheapest month. Compare October fares.$488Nov, around the usual price. Compare November fares.$636Dec, above the usual price. Compare December fares.$510Jan ’27, around the usual price. Compare January fares.$496Feb, around the usual price. Compare February fares.$572Apr, above the usual price. Compare April fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, Sydney to Bangkok, from cached prices.
Route facts
- Airports
- Kingsford Smith (SYD) ↔ Suvarnabhumi (BKK) · Don Mueang (DMK)
- Flight time
- ≈13 hours outbound
- Distance
- ≈7,536 km each way
- Typical price
- $510 round-trip (seasonal median)
- Airlines on the board
- Xiamen Airlines
- Itineraries
- Connections on current fares
- Best months to visit
- Nov–Feb
Good to know
SYD → BKK, answered.
Is $412 a good price for Sydney to Bangkok?
Only slightly. The seasonal median is around $510 round-trip and this fare is 19% under it. 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 Sydney to Bangkok?
Across 6 months of cached-fare history, Oct comes out cheapest on this route. The best months to actually be in Bangkok are Nov–Feb — when those overlap, that's your window.
How far in advance should I book SYD → Bangkok?
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 6 months of cached fares, Oct comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Are there nonstop flights from Sydney to Bangkok?
The current cheapest fares involve a connection, ticketed under Xiamen Airlines. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 17 October). 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 Bangkok?
Lock the flight first — then compare stays for 21 Oct – 7 Nov · 17 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next SYD → BKK drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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