AirHint found the following cheapest return flights from London (LHR) to Rio Negro (MDE) in October 2025 (see full year).

Return flights

16 Oct - 25 Oct	Vueling Airlines
07 Oct - 15 Oct	Air Canada
16 Oct - 30 Oct	Vueling Airlines
15 Oct - 21 Oct	Vueling Airlines
06 Oct - 15 Oct	Virgin Atlantic
01 Oct - 13 Oct	Virgin Atlantic
06 Oct - 16 Oct	Virgin Atlantic
06 Oct - 13 Oct	Virgin Atlantic
28 Oct - 05 Nov	Virgin Atlantic
30 Oct - 07 Nov	Air Canada
07 Oct - 20 Oct	Virgin Atlantic
01 Oct - 08 Oct	Air Canada
23 Oct - 14 Nov	Avianca
22 Oct - 14 Nov	TAP
21 Oct - 05 Nov	Virgin Atlantic
14 Oct - 10 Nov	Avianca
26 Oct - 02 Nov	Avianca
02 Oct - 03 Nov	Avianca
14 Oct - 17 Nov	Avianca
25 Oct - 06 Nov	Avianca

Also check the deals for one-way flights from London to Rio Negro 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 London to Rio Negro in October from $874

Return flights