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

Return flights

27 May - 03 Jun	Lufthansa
26 May - 02 Jun	Air Canada
24 May - 31 May	Air Canada
25 May - 01 Jun	Air Canada
29 May - 05 Jun	Air Canada
31 May - 07 Jun	British Airways
28 May - 04 Jun	United
22 May - 29 May	Lufthansa
30 May - 06 Jun	Air Canada
23 May - 30 May	United
29 May - 17 Jun	Air Canada

Also check the deals for one-way flights from Austin 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 Austin to Barcelona in May from $833

Return flights