Cheapest return YUL–UIO flights, May

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

Return flights

27 May - 03 Jun Avianca
21 May - 01 Jun Avianca
20 May - 27 May Copa
07 May - 09 May Delta
18 May - 25 May Delta
07 May - 14 May Delta
26 May - 02 Jun LATAM Airlines Group
22 May - 29 May Copa
07 May - 15 May Delta
08 May - 15 May Delta
09 May - 15 May Delta
10 May - 15 May Delta
05 May - 09 May Delta
30 May - 06 Jun Copa
29 May - 08 Jun Avianca
26 May - 09 Jun LATAM Airlines Group
28 May - 04 Jun Copa

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

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