AirHint found the following cheapest return flights from Las Vegas (LAS) to Barcelona (BCN) in August 2025 (see full year).

Return flights

04 Aug - 05 Sep	Frontier Airlines
17 Aug - 14 Sep	Frontier Airlines
22 Aug - 05 Sep	Frontier Airlines
24 Aug - 14 Sep	United
21 Aug - 24 Aug	United
07 Aug - 17 Aug	Frontier Airlines
09 Aug - 11 Aug	Spirit Airlines
01 Aug - 08 Aug	Frontier Airlines
10 Aug - 19 Aug	Lufthansa

Also check the deals for one-way flights from Las Vegas to Barcelona in August.

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 Las Vegas to Barcelona in August from 511€

Return flights