AirHint found the following cheapest one-way flights from London (LCY) to Lisbon (LIS) in May 2026 (see full year).
One-Way flights
| 20 May | ITA Airways | ||
| 09 May | KLM | ||
| 08 May | SWISS | ||
| 15 May | ITA Airways | ||
| 30 May | KLM | ||
| 29 May | SWISS | ||
| 01 May | Lufthansa | ||
| 31 May | Luxair | ||
| 17 May | Luxair | ||
| 16 May | KLM |
Also check the deals for return flights from London to Lisbon in May.
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