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

Return flights

06 May - 14 May	Scandinavian Airlines
13 May - 21 May	Air Canada
19 May - 27 May	Air Canada
11 May - 19 May	Air Canada
04 May - 12 May	Air Canada
05 May - 13 May	Air Canada
12 May - 20 May	Air Canada
18 May - 26 May	Air Canada
20 May - 28 May	Air Canada
17 May - 25 May	Air Canada
19 May - 13 Jun	United
20 May - 13 Jun	United
26 May - 03 Jun	Air Canada
27 May - 03 Jun	Air Canada
27 May - 04 Jun	Air Canada
31 May - 08 Jun	jetBlue
26 May - 02 Jun	Air Canada
25 May - 02 Jun	Air Canada
28 May - 05 Jun	jetBlue
14 May - 06 Jun	Air Canada

Also check the deals for one-way flights from Detroit 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 Detroit to Barcelona in May from 431€

Return flights