Cheapest one-way flights from London to Barcelona in September from 139CAD

AirHint found the following cheapest one-way flights from London (LHR) to Barcelona (BCN) in September 2026 (see full year).

One-Way flights

01 Sep British Airways direct
05 Sep British Airways direct
12 Sep British Airways direct
13 Sep British Airways direct
18 Sep Iberia direct
25 Sep Iberia direct

Also check the deals for return 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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