United Kingdom → Australia
Cheap flights from London to Sydney
LHRSYD
one-way from A$932AUD*
Free — no booking fees Prices in AUD Updated daily Live fares, no spam
Cheapest London → Sydney fares right now
Cheapest around 2026-10-18Xiamen AirlinesCheapest
35 hr 45 min1 stop12:35 PM → 10:20 AM
China Southern Airlines
36 hr 15 min1 stop10:10 PM → 8:25 PM
Aegean Airlines, Etihad Airways, Scoot
36 hr 5 min4 stops10:15 PM → 8:20 PM
Aegean Airlines, ScootFastest
28 hr 30 min2 stops10:15 PM → 12:45 PM
*Indicative live fares for a sample date, in AUD. Prices change at booking — search for your exact dates above.
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Flying London to Sydney
Sky Spy compares live one-way fares from London (LHR) to Sydney (SYD), pulling prices directly and ranking them cheapest-first in AUD. Rather than checking airlines one at a time, you see the best London–Sydney deals in a single sortable view — including smart self-transfer connections through hub cities that most search engines hide.
Flexible on exactly where you land in Australia? Search the whole region at once and let Sky Spy surface the cheapest entry point.
Tips for a cheaper LHR → SYD fare
- Fares to Australia are usually lowest outside school holidays and peak summer.
- Use the ±days search to find the single cheapest day to fly LHR → SYD.
- One-way pricing lets you mix airlines for the lowest total trip cost.
- Mid-week departures (Tue–Thu) often beat weekend fares.