AirHint found the following cheapest one-way flights from Lisbon (LIS) to Madrid (MAD) in August 2025 (see full year).

One-Way flights

04 Aug	Ryanair	direct
09 Aug	Ryanair	direct
06 Aug	easyJet	direct
02 Aug	easyJet	direct
05 Aug	Ryanair	direct
03 Aug	easyJet	direct
01 Aug	easyJet	direct
07 Aug	Ryanair	direct
08 Aug	Vueling Airlines	direct
31 Aug	easyJet	direct

Also check the deals for return flights from Lisbon to Madrid in August.

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 one-way flights from Lisbon to Madrid in August from 29€

One-Way flights