AirHint found the following cheapest return flights from London (LHR) to Rio Negro (MDE) in April 2026 (see full year).

Return flights

09 Apr - 23 Apr	Iberia
07 Apr - 21 Apr	Vueling Airlines
14 Apr - 22 Apr	Iberia
15 Apr - 22 Apr	Iberia
17 Apr - 24 Apr	Iberia
18 Apr - 27 Apr	Iberia
06 Apr - 24 Apr	Avianca
24 Apr - 03 May	Vueling Airlines
13 Apr - 21 Apr	KLM
13 Apr - 22 Apr	Air France
29 Apr - 13 May	Iberia
13 Apr - 20 Apr	Iberia
02 Apr - 02 May	United
26 Apr - 02 May	Vueling Airlines
26 Apr - 09 May	Avianca

Also check the deals for one-way flights from London to Rio Negro in April.

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 April from $946

Return flights