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

Return flights

02 Mar - 06 Mar	United
02 Mar - 10 Mar	United
02 Mar - 09 Mar	United
02 Mar - 11 Mar	United
10 Mar - 17 Mar	United
02 Mar - 12 Mar	United
07 Mar - 13 Mar	United
17 Mar - 14 Apr	United
08 Mar - 21 Mar	United
31 Mar - 06 Apr	WestJet
22 Mar - 06 Apr	Porter Airlines (Canada) Ltd
25 Mar - 17 Apr	Porter Airlines (Canada) Ltd
12 Mar - 22 Mar	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Ottawa to Sao Paulo 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 Ottawa to Sao Paulo in March from 453€

Return flights