AirHint found the following cheapest one-way flights from London (LCY) to Lisbon (LIS) in September 2026 (see full year).
One-Way flights
| 28 Sep | KLM | ||
| 23 Sep | KLM | ||
| 07 Sep | KLM | ||
| 03 Sep | KLM | ||
| 19 Sep | KLM | ||
| 17 Sep | KLM | ||
| 24 Sep | KLM | ||
| 18 Sep | KLM | ||
| 20 Sep | SWISS | ||
| 11 Sep | SWISS |
Also check the deals for return flights from London to Lisbon in September.
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