AirHint found the following cheapest return flights from New Orleans (MSY) to London (LHR) in October 2025 (see full year).

Return flights

24 Oct - 31 Oct	jetBlue
25 Oct - 01 Nov	Spirit Airlines
23 Oct - 15 Nov	Frontier Airlines
21 Oct - 04 Nov	jetBlue
21 Oct - 25 Nov	jetBlue
23 Oct - 06 Nov	Frontier Airlines
31 Oct - 06 Nov	Spirit Airlines
25 Oct - 26 Oct	Spirit Airlines
24 Oct - 25 Oct	Spirit Airlines
22 Oct - 15 Nov	Air Canada
22 Oct - 15 Nov	British Airways	direct
25 Oct - 01 Nov	American Airlines	direct
24 Oct - 25 Oct	British Airways	direct
23 Oct - 15 Nov	British Airways	direct

Also check the deals for one-way flights from New Orleans to London in October.

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 October from 553€

Return flights