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

Return flights

04 May - 11 May	Avianca
12 May - 19 May	Avianca
14 May - 21 May	Avianca
16 May - 23 May	Avianca
18 May - 25 May	Avianca
05 May - 12 May	Avianca
07 May - 14 May	Avianca
09 May - 16 May	Avianca
11 May - 18 May	Avianca
19 May - 26 May	Avianca
26 May - 02 Jun	Avianca
28 May - 04 Jun	Avianca
30 May - 06 Jun	Avianca
18 May - 01 Jun	Avianca
27 May - 03 Jun	Avianca
29 May - 05 Jun	Avianca
31 May - 07 Jun	Avianca
29 May - 08 Jun	Avianca
25 May - 01 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 345€

Return flights