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.
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.
| 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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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.