AirHint found the following cheapest return flights from London (LHR) to Lisbon (LIS) in July 2025 (see full year).

Return flights

08 Jul - 30 Jul	TAP	direct
09 Jul - 18 Jul	TAP	direct
09 Jul - 23 Jul	TAP	direct
09 Jul - 16 Jul	TAP	direct
09 Jul - 17 Jul	TAP	direct
07 Jul - 16 Jul	TAP	direct
29 Jul - 06 Aug	Iberia
10 Jul - 17 Jul	Lufthansa
09 Jul - 15 Jul	Lufthansa
15 Jul - 05 Aug	Iberia
30 Jul - 06 Aug	Lufthansa
29 Jul - 05 Aug	Iberia
07 Jul - 24 Jul	TAP	direct
12 Jul - 22 Jul	Lufthansa
09 Jul - 06 Aug	TAP	direct
30 Jul - 01 Aug	Lufthansa
29 Jul - 07 Aug	Iberia
31 Jul - 06 Aug	Lufthansa
31 Jul - 01 Aug	Lufthansa
30 Jul - 07 Aug	Lufthansa

Also check the deals for one-way flights from London to Lisbon in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from London to Lisbon in July from $286

Return flights