Cheap Flights from Adelaide to London
Round-trip economy fares between Adelaide (ADL) and London (LHR) average A$1,946 across the year. Book for January and typical prices fall to A$1,596. The 16,284 km hop takes about 19.8 hours non-stop, and the nicest window to visit London is May – September.
Today's tracked low
A$1,452 −9% vs. seasonal low
Not flying from Adelaide? See London deals from your nearest hub.
When is the cheapest time to fly from Adelaide to London?
Average round-trip economy fare by departure month. January is the statistical sweet spot at A$1,596.
| Month | Avg. round-trip | vs. yearly average |
|---|---|---|
| January Cheapest | A$1,596 | −A$350 |
| February | A$1,635 | −A$311 |
| March | A$1,829 | −A$117 |
| April | A$1,985 | +A$39 |
| May | A$2,141 | +A$195 |
| June | A$2,335 | +A$389 |
| July | A$2,452 | +A$506 |
| August | A$2,374 | +A$428 |
| September | A$2,024 | +A$78 |
| October | A$1,868 | −A$78 |
| November | A$1,712 | −A$234 |
| December | A$2,102 | +A$156 |
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Adelaide to London flight FAQs
- What is the cheapest month to fly from Adelaide to London?
- January is typically cheapest, with round-trips from A$1,596 — about A$350 under the yearly average of A$1,946.
- How long is the flight from Adelaide to London?
- Non-stop services cover the 16,284 km route in roughly 19.8 hours.
- When is the best time to visit London?
- May – September. Entry requirements: UK ETA required for visa-exempt nationals since 2025.