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

Return flights

27 May - 03 Jun	Porter Airlines (Canada) Ltd
04 May - 11 May	Porter Airlines (Canada) Ltd
26 May - 02 Jun	Porter Airlines (Canada) Ltd
20 May - 27 May	Porter Airlines (Canada) Ltd
10 May - 17 May	Copa
06 May - 13 May	Avianca
05 May - 12 May	Avianca
07 May - 14 May	Avianca
08 May - 15 May	WestJet
28 May - 04 Jun	Avianca
01 May - 08 May	Avianca
09 May - 16 May	Avianca
19 May - 26 May	Avianca
30 May - 06 Jun	Avianca
25 May - 01 Jun	Avianca
29 May - 05 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 379€

Return flights