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

Return flights

04 May - 18 May	Avianca
01 May - 08 May	Avianca
03 May - 10 May	Avianca
11 May - 18 May	Avianca
13 May - 20 May	Avianca
15 May - 22 May	Avianca
17 May - 24 May	Avianca
04 May - 11 May	Avianca
06 May - 13 May	Avianca
08 May - 15 May	Avianca
25 May - 01 Jun	Avianca
27 May - 03 Jun	Avianca
29 May - 05 Jun	Avianca
31 May - 07 Jun	Avianca

Also check the deals for one-way flights from Montreal to Quito 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 Quito in May from 358€

Return flights