AirHint found the following cheapest return flights from London (LON) to Sao Paulo (GRU) in May 2026 (see full year).

Return flights

15 May - 12 Jun	Royal Air Maroc
04 May - 10 May	Royal Air Maroc
08 May - 12 May	Royal Air Maroc
31 May - 24 Jun	Royal Air Maroc
01 May - 24 May	Royal Air Maroc
03 May - 17 May	Royal Air Maroc
03 May - 25 May	Avianca
06 May - 17 May	Royal Air Maroc
06 May - 20 May	Royal Air Maroc
13 May - 02 Jun	Royal Air Maroc
04 May - 17 May	Royal Air Maroc
07 May - 27 May	Avianca
14 May - 21 May	Avianca
20 May - 14 Jun	Royal Air Maroc
13 May - 01 Jun	Lufthansa
12 May - 01 Jun	Lufthansa
25 May - 15 Jun	SWISS
25 May - 08 Jun	Air Europa
18 May - 01 Jun	TAP
08 May - 04 Jun	SWISS

Also check the deals for one-way flights from London to Sao Paulo 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 Sao Paulo in May from 634€

Return flights