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

Return flights

16 Mar - 30 Mar	Avianca
10 Mar - 15 Mar	Avianca
30 Mar - 06 Apr	Avianca
12 Mar - 14 Mar	Avianca
12 Mar - 17 Mar	Avianca
12 Mar - 18 Mar	Avianca
10 Mar - 17 Mar	Avianca
10 Mar - 18 Mar	Avianca
12 Mar - 16 Mar	Avianca
10 Mar - 16 Mar	Avianca
19 Mar - 10 Apr	Avianca
19 Mar - 06 Apr	Avianca
25 Mar - 07 Apr	Avianca
18 Mar - 22 Apr	Avianca
16 Mar - 01 Apr	Avianca
25 Mar - 09 Apr	Avianca
16 Mar - 16 Apr	Avianca
18 Mar - 17 Apr	Avianca
30 Mar - 15 Apr	Avianca
18 Mar - 31 Mar	Avianca

Also check the deals for one-way flights from Sao Paulo to London in March.

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 Sao Paulo to London in March from $719

Return flights