AirHint found the following cheapest return flights from Lille (LIL) to Barcelona (BCN) in May 2026 (see full year).

Return flights

27 May - 15 Jun	Volotea	direct
27 May - 12 Jun	Volotea	direct
29 May - 15 Jun	Volotea	direct
29 May - 12 Jun	Volotea	direct
29 May - 11 Jun	Volotea
28 May - 11 Jun	easyJet
30 May - 11 Jun	easyJet
01 May - 03 May	easyJet
28 May - 12 Jun	easyJet
30 May - 12 Jun	easyJet
15 May - 18 May	easyJet
22 May - 25 May	easyJet
30 May - 13 Jun	easyJet
11 May - 15 May	Ryanair
15 May - 18 May	Volotea	direct
13 May - 18 May	Volotea	direct
23 May - 25 May	easyJet
01 May - 18 May	Volotea	direct
11 May - 18 May	Volotea	direct
13 May - 15 May	Volotea	direct

Also check the deals for one-way flights from Lille 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 return flights from Lille to Barcelona in May from $169

Return flights