AirHint found the following cheapest return flights from Washington (DCA) to Barcelona (BCN) in March 2026 (see full year).

Return flights

18 Mar - 25 Mar	Air Canada
10 Mar - 17 Mar	Air Canada
10 Mar - 16 Mar	Air Canada
11 Mar - 15 Mar	Air Canada
10 Mar - 24 Mar	Air Canada
03 Mar - 12 Mar	Iberia
23 Mar - 30 Mar	Air Canada
04 Mar - 10 Mar	British Airways
04 Mar - 12 Mar	British Airways
29 Mar - 05 Apr	Air Canada
08 Mar - 17 Mar	jetBlue
16 Mar - 02 Apr	British Airways
03 Mar - 02 Apr	American Airlines
29 Mar - 06 Apr	Air Canada
24 Mar - 06 Apr	Scandinavian Airlines
30 Mar - 05 Apr	Air Canada
28 Mar - 06 Apr	Air Canada
25 Mar - 01 Apr	jetBlue
28 Mar - 05 Apr	Air Canada
27 Mar - 06 Apr	Air Canada

Also check the deals for one-way flights from Washington to Barcelona in March.

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 Washington to Barcelona in March from $460

Return flights