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

Return flights

06 May - 13 May	Copa
05 May - 12 May	Porter Airlines (Canada) Ltd
19 May - 26 May	Copa
12 May - 19 May	Porter Airlines (Canada) Ltd
20 May - 27 May	Copa
07 May - 14 May	Copa
26 May - 02 Jun	Copa
27 May - 03 Jun	Copa
14 May - 21 May	Copa
28 May - 04 Jun	Copa
08 May - 15 May	Copa
22 May - 29 May	Copa
01 May - 08 May	Copa
25 May - 01 Jun	Copa
30 May - 06 Jun	Copa
31 May - 07 Jun	Avianca

Also check the deals for one-way flights from Montreal to Guayaquil 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 Guayaquil in May from $475

Return flights