AirHint found the following cheapest return flights from Los Angeles (LAX) to London (LHR) in March 2026 (see full year).

Return flights

21 Mar - 30 Mar	Air Canada
12 Mar - 20 Mar	TAP
18 Mar - 25 Mar	Aer Lingus
12 Mar - 04 Apr	TAP
14 Mar - 04 Apr	TAP
01 Mar - 30 Apr	Aer Lingus
21 Mar - 29 Mar	Air Canada
18 Mar - 25 Mar	British Airways	direct
30 Mar - 11 Apr	Air Canada
21 Mar - 11 Apr	Air Canada
26 Mar - 06 Apr	Air Canada
27 Mar - 06 Apr	Air Canada
08 Mar - 22 Mar	Aer Lingus
20 Mar - 13 Apr	Scandinavian Airlines
31 Mar - 06 Apr	SWISS
01 Mar - 30 Apr	Delta	direct
13 Mar - 27 Mar	British Airways	direct
13 Mar - 20 Mar	British Airways	direct
23 Mar - 30 Mar	British Airways	direct
08 Mar - 22 Mar	British Airways	direct

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

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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Cheapest return flights from Los Angeles to London in March from $525

Return flights