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

Return flights

06 May - 13 May	Spirit Airlines
04 May - 11 May	Spirit Airlines
05 May - 12 May	Air Canada
05 May - 15 May	Finnair
01 May - 08 May	Lufthansa
03 May - 10 May	Lufthansa
08 May - 14 May	Lufthansa
06 May - 23 May	Lufthansa
02 May - 09 May	Air Canada
20 May - 27 May	Frontier Airlines
27 May - 03 Jun	Air Canada
19 May - 01 Jun	Spirit Airlines
31 May - 07 Jun	Air Canada
30 May - 07 Jun	Spirit Airlines
30 May - 06 Jun	Air Canada
28 May - 23 Jun	Spirit Airlines
22 May - 20 Jun	Spirit Airlines

Also check the deals for one-way flights from Charlotte 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 Charlotte to Barcelona in May from 464€

Return flights