London to Sydney flights (LON–SYD) | Finnair

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Popular flights and flight offers from London to Sydney

LHR – SYD

London - Sydney

Thu 28 Aug 2025 – Mon 8 Sep 2025

From

£1,029

Our cheapest flights from London to Sydney

LHR – SYD

London - Sydney

Thu 28 Aug 2025 – Mon 8 Sep 2025

From

£1,029

Popular routes and flight deals