Cheapest return flights from Los Angeles to Barcelona in September from $423

Best time to book flights for Los Angeles (LAX) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest return flights from Los Angeles (LAX) to Barcelona (BCN) in September 2025 (see full year).

Return flights

26 Sep - 08 Oct LEVEL direct
26 Sep - 13 Oct LEVEL direct
30 Sep - 20 Oct LEVEL direct
20 Sep - 29 Sep TAP
21 Sep - 30 Sep TAP
20 Sep - 28 Sep TAP
20 Sep - 03 Oct TAP
30 Sep - 07 Oct TAP
20 Sep - 03 Oct Iberia direct
30 Sep - 12 Oct TAP
30 Sep - 30 Oct Iberia direct
26 Sep - 11 Oct Iberia direct
20 Sep - 11 Oct Iberia direct
09 Sep - 18 Sep Scandinavian Airlines
17 Sep - 26 Sep LEVEL direct
17 Sep - 25 Sep LEVEL direct
18 Sep - 26 Sep LEVEL direct
09 Sep - 18 Sep LEVEL direct
04 Sep - 14 Sep LEVEL direct
03 Sep - 26 Sep LEVEL direct

Also check the deals for one-way flights from Los Angeles to Barcelona in September.

Skyscanner

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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