Route brief · SYD → BKK
Sydney → Bangkok
$463
−19% vs typical
seasonal median $570 · difference $107
Oct 11 – Oct 18 · 7 nights
AirAsia X1 stop
- Usual monthly lows
- $511–$571
- Board rank
- Stronger than 52%
- Route sample
- 4 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefBKKBangkokThe backpacker cliché that still delivers: gold temples, boat noodles, $12 street-food feasts.Best windowNov–FebAirportsSuvarnabhumi (BKK) · Don Mueang (DMK)All routes into BangkokWhen this route gets cheap.
Cached-fare history: across 4 months, Oct is the cheapest for SYD → BKK. Best time to be there: Nov–Feb.
Fares bottom out in October around $463 and peak in December near $901 — a $438 spread across the 4 months we track. The cheapest itinerary we are tracking makes one stop and takes about 11.5 hours outbound, on a 7-night trip — ticketed under AirAsia X, which on a connecting fare need not operate every leg. At $463 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. Of the 14 departure cities we track at a similar distance from Bangkok, this is the cheapest right now — though Stockholm is within a few dollars. That puts it in the cheaper half of the 18 routes of similar length we watch out of Sydney, where the middle fare is $560.
Day-level prices for the next 4 months
Tap any day → live search
The median cached fare across this calendar is 38% higher than when tracking began on Aug 8 — $505 then versus $695 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 $442, on Oct 12.
Cached day-level data for this route is sparse — 19 of 122 days priced, from 48 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
November 2026
Cheapest in Oct · around $463
19% below the $570 typical fare
Cheapest round-trip fare found per month · Sydney → Bangkok · cached-price history
Route facts
- Airports
- Kingsford Smith (SYD) ↔ Suvarnabhumi (BKK) · Don Mueang (DMK)
- Flight time
- ~11.5 hours outbound
- Distance
- ~7,536 km each way
- Typical price
- $570 round-trip (seasonal median)
- Airlines on the board
- AirAsia X
- Itineraries
- Connections on current fares
- Best months to visit
- Nov–Feb
SYD → BKK, answered.
Is $463 a good price for Sydney to Bangkok?
Only slightly. The seasonal median is around $570 round-trip and this fare is 19% under it, about $107. 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 4 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 4 months of cached fares, Oct comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from Sydney to Bangkok?
The current cheapest fares involve a connection, ticketed under AirAsia X. 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 Bangkok?
Lock the flight first — then compare stays for Oct 11 – Oct 18 · 7 nights.
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Missed 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.
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