AirHint found the following cheapest return flights from New Orleans (MSY) to London (LHR) in March 2026 (see full year).

Return flights

28 Mar - 01 Apr	jetBlue
17 Mar - 24 Mar	Iberia	direct
10 Mar - 17 Mar	Iberia
27 Mar - 31 Mar	jetBlue
17 Mar - 23 Mar	Air Canada
09 Mar - 16 Mar	Lufthansa
05 Mar - 10 Mar	British Airways
10 Mar - 15 Mar	Iberia
17 Mar - 11 Apr	Iberia
08 Mar - 14 Mar	jetBlue
15 Mar - 21 Mar	jetBlue
10 Mar - 17 Mar	Finnair	direct
28 Mar - 01 Apr	British Airways	direct

Also check the deals for one-way flights from New Orleans 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 New Orleans to London in March from $643

Return flights