Cheapest return flights from London to Barcelona in September from $99

Best time to book flights for London (LHR) to Barcelona (BCN) flights at AirHint

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

Return flights

09 Sep - 13 Sep Vueling Airlines direct
09 Sep - 12 Sep Vueling Airlines direct
09 Sep - 24 Sep Vueling Airlines direct
09 Sep - 25 Sep Vueling Airlines direct
19 Sep - 24 Sep Vueling Airlines direct
19 Sep - 25 Sep Vueling Airlines direct
01 Sep - 13 Sep Vueling Airlines direct
01 Sep - 09 Sep Vueling Airlines direct
01 Sep - 12 Sep Vueling Airlines direct
24 Sep - 25 Sep Vueling Airlines direct
29 Sep - 07 Oct Vueling Airlines direct
29 Sep - 20 Oct Vueling Airlines direct
29 Sep - 01 Oct Vueling Airlines direct
29 Sep - 15 Oct Vueling Airlines direct
29 Sep - 03 Oct Vueling Airlines direct
29 Sep - 10 Oct Vueling Airlines direct
29 Sep - 02 Oct Vueling Airlines direct
27 Sep - 07 Oct Vueling Airlines direct
27 Sep - 01 Oct Vueling Airlines direct
27 Sep - 15 Oct Vueling Airlines direct

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

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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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