Cheap Flights from Perth to London

Round-trip economy fares between Perth (PER) and London (LHR) average A$1,788 across the year. Book for January and typical prices fall to A$1,466. The 14,508 km hop takes about 17.7 hours non-stop, and the nicest window to visit London is May – September.

PER LHR 14,508 km · ~17.7h non-stop

Today's tracked low

A$1,305 −11% vs. seasonal low

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

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

Average round-trip economy fare by departure month. January is the statistical sweet spot at A$1,466.

Average round-trip fares from Perth to London by month
Month Avg. round-trip vs. yearly average
January Cheapest A$1,466 −A$322
February A$1,502 −A$286
March A$1,681 −A$107
April A$1,824 +A$36
May A$1,967 +A$179
June A$2,146 +A$358
July A$2,253 +A$465
August A$2,181 +A$393
September A$1,860 +A$72
October A$1,716 −A$72
November A$1,573 −A$215
December A$1,931 +A$143

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Current low: A$1,466 round-trip. One email when it dips — no newsletters, no spam.

Perth to London flight FAQs

What is the cheapest month to fly from Perth to London?
January is typically cheapest, with round-trips from A$1,466 — about A$322 under the yearly average of A$1,788.
How long is the flight from Perth to London?
Non-stop services cover the 14,508 km route in roughly 17.7 hours.
When is the best time to visit London?
May – September. Entry requirements: UK ETA required for visa-exempt nationals since 2025.

London from other departure cities