AirHint found the following cheapest one-way flights from Lisbon (LIS) to Barcelona (BCN) in May 2026 (see full year).

One-Way flights

13 May	Vueling Airlines	direct
12 May	Vueling Airlines	direct
05 May	Vueling Airlines	direct
03 May	Vueling Airlines	direct
23 May	Vueling Airlines	direct
26 May	Vueling Airlines	direct
30 May	Vueling Airlines	direct
14 May	Vueling Airlines	direct
15 May	Vueling Airlines	direct
22 May	Vueling Airlines	direct

Also check the deals for return flights from Lisbon to Barcelona 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 one-way flights from Lisbon to Barcelona in May from 23€

One-Way flights