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

Return flights

01 May - 11 May	Aeromexico	direct
15 May - 25 May	Aeromexico	direct
01 May - 05 May	Copa
31 May - 11 Jun	Aeromexico	direct
29 May - 08 Jun	Aeromexico	direct
01 May - 05 May	Aeromexico	direct
30 May - 10 Jun	Copa
05 May - 25 May	Viva
06 May - 25 May	Viva
17 May - 25 May	Viva
10 May - 25 May	Viva
23 May - 25 May	Viva
05 May - 07 May	Viva
25 May - 08 Jun	Viva
18 May - 08 Jun	Viva
23 May - 08 Jun	Viva
29 May - 03 Jun	Viva
25 May - 03 Jun	Viva
15 May - 03 Jun	Viva
17 May - 03 Jun	Viva

Also check the deals for one-way flights from Mexico City 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 Mexico City to Quito in May from $427

Return flights