AirHint found the following cheapest return flights from Detroit (DTW) to Barcelona (BCN) in December 2025 (see full year).

Return flights

04 Dec - 12 Dec	Spirit Airlines
04 Dec - 11 Dec	Spirit Airlines
03 Dec - 13 Dec	Spirit Airlines
09 Dec - 16 Dec	Spirit Airlines
03 Dec - 15 Dec	Spirit Airlines
02 Dec - 09 Dec	Spirit Airlines
02 Dec - 12 Dec	Air Canada
10 Dec - 17 Dec	Air Canada
08 Dec - 15 Dec	Spirit Airlines
02 Dec - 16 Dec	SWISS
31 Dec - 19 Jan	Air Canada
24 Dec - 14 Jan	British Airways
28 Dec - 11 Jan	Lufthansa
23 Dec - 13 Jan	British Airways
04 Dec - 01 Jan	Spirit Airlines
30 Dec - 05 Jan	Air Canada
11 Dec - 03 Jan	Spirit Airlines
17 Dec - 04 Jan	Spirit Airlines
19 Dec - 10 Jan	Spirit Airlines
12 Dec - 03 Jan	Spirit Airlines

Also check the deals for one-way flights from Detroit to Barcelona in December.

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 December from $417

Return flights