AirHint found the following cheapest return flights from Lisbon (LIS) to Madrid (MAD) in May 2026 (see full year).

Return flights

01 May - 03 May	TAP	direct
01 May - 08 May	TAP	direct
02 May - 04 May	Iberia	direct
01 May - 10 May	TAP	direct
17 May - 06 Jun	TAP	direct
16 May - 23 May	easyJet	direct
07 May - 10 May	easyJet	direct
27 May - 15 Jun	easyJet

Also check the deals for one-way flights from Lisbon to Madrid in May.

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 Lisbon to Madrid in May from 56€

Return flights