Cheap Flights from London to Perth

Round-trip economy fares between London (LHR) and Perth (PER) average A$1,788 across the year. Book for June and typical prices fall to A$1,430. The 14,508 km hop takes about 17.7 hours non-stop, and the nicest window to visit Perth is September – November (wildflowers) & March – May.

LHR PER 14,508 km · ~17.7h non-stop

Today's tracked low

A$1,359 −5% vs. seasonal low

Not flying from London? See Perth deals from your nearest hub.

When is the cheapest time to fly from London to Perth?

Average round-trip economy fare by departure month. June is the statistical sweet spot at A$1,430.

Average round-trip fares from London to Perth by month
Month Avg. round-trip vs. yearly average
January A$2,146 +A$358
February A$1,967 +A$179
March A$1,824 +A$36
April A$1,716 −A$72
May A$1,538 −A$250
June Cheapest A$1,430 −A$358
July A$1,466 −A$322
August A$1,538 −A$250
September A$1,681 −A$107
October A$1,860 +A$72
November A$2,003 +A$215
December A$2,289 +A$501

Travel Readiness & Connectivity — Australia

ETA / eVisitor authorisation required before boarding.

Instant eSIM data for Australia

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Sleep near the action in Perth

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Current low: A$1,430 round-trip. One email when it dips — no newsletters, no spam.

London to Perth flight FAQs

What is the cheapest month to fly from London to Perth?
June is typically cheapest, with round-trips from A$1,430 — about A$358 under the yearly average of A$1,788.
How long is the flight from London to Perth?
Non-stop services cover the 14,508 km route in roughly 17.7 hours.
When is the best time to visit Perth?
September – November (wildflowers) & March – May. Entry requirements: ETA / eVisitor authorisation required before boarding.

Perth from other departure cities