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

Return flights

21 May - 28 May	Air Transat
28 May - 04 Jun	Air Transat
14 May - 21 May	Air Transat
07 May - 14 May	Air Transat
19 May - 26 May	LATAM Airlines Group
20 May - 27 May	Copa
31 May - 07 Jun	Porter Airlines (Canada) Ltd
22 May - 29 May	Arajet
29 May - 05 Jun	Arajet
10 May - 17 May	Porter Airlines (Canada) Ltd
03 May - 10 May	Air Transat
24 May - 31 May	Porter Airlines (Canada) Ltd
15 May - 22 May	Arajet
25 May - 01 Jun	Avianca
27 May - 03 Jun	Avianca
26 May - 02 Jun	Porter Airlines (Canada) Ltd
30 May - 06 Jun	Air Canada

Also check the deals for one-way flights from Montreal 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 Montreal to Rio Negro in May from $448

Return flights