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

Return flights

07 May - 21 May	Icelandair
07 May - 14 May	Icelandair
06 May - 11 May	Icelandair
05 May - 19 May	Icelandair
07 May - 20 May	Icelandair
02 May - 18 May	Air France
05 May - 21 May	jetBlue
06 May - 26 May	jetBlue
01 May - 12 May	jetBlue
28 May - 04 Jun	KLM
04 May - 11 May	jetBlue
30 May - 08 Jun	KLM
18 May - 08 Jun	KLM
11 May - 08 Jun	KLM
24 May - 07 Jun	Avianca
31 May - 13 Jun	Avianca
31 May - 25 Jun	Avianca
31 May - 16 Jun	Iberia
30 May - 21 Jun	American Airlines

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

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 May from 621€

Return flights