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

Return flights

11 May - 25 May	Avianca
18 May - 31 May	Avianca
04 May - 18 May	Avianca
01 May - 02 Jun	Avianca
23 May - 13 Jun	Air Europa	direct
01 May - 30 May	Avianca
10 May - 07 Jun	Iberia
11 May - 25 May	Iberia	direct

Also check the deals for one-way flights from Madrid 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 Madrid to Quito in May from 690€

Return flights