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

Return flights

19 May - 26 May	Air Canada
05 May - 12 May	Air Canada
12 May - 19 May	Air Canada
06 May - 13 May	Air Canada
13 May - 20 May	Air Canada
11 May - 18 May	Air Canada
18 May - 25 May	Air Canada
04 May - 11 May	Air Canada
13 May - 27 May	Air Canada
03 May - 12 May	Air Canada
19 May - 02 Jun	United
19 May - 10 Jun	United
14 May - 12 Jun	United
28 May - 04 Jun	WestJet
21 May - 12 Jun	Lufthansa
25 May - 01 Jun	WestJet
27 May - 03 Jun	WestJet
20 May - 07 Jun	Iberia
21 May - 06 Jun	Lufthansa
31 May - 07 Jun	WestJet

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Detroit to Barcelona in May from 449€

Return flights