Cheapest return flights from Los Angeles to London in September from $544

Best time to book flights for Los Angeles (LAX) to London (LHR) flights at AirHint

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

Return flights

23 Sep - 07 Oct TAP
21 Sep - 06 Oct TAP
23 Sep - 03 Oct TAP
20 Sep - 04 Oct TAP
07 Sep - 23 Sep Scandinavian Airlines
17 Sep - 01 Oct Scandinavian Airlines
28 Sep - 08 Oct Scandinavian Airlines
19 Sep - 28 Sep Finnair
16 Sep - 03 Oct TAP
26 Sep - 06 Oct Scandinavian Airlines
01 Sep - 10 Sep Aer Lingus
24 Sep - 28 Sep Spirit Airlines
18 Sep - 30 Sep Spirit Airlines
16 Sep - 28 Sep TAP
18 Sep - 23 Sep Scandinavian Airlines
15 Sep - 08 Oct Scandinavian Airlines
15 Sep - 27 Sep Scandinavian Airlines
17 Sep - 27 Sep Scandinavian Airlines
04 Sep - 18 Sep American Airlines
27 Sep - 11 Oct TAP

Also check the deals for one-way flights from Los Angeles to London 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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