Cheapest return MCO–OPO flights, May

AirHint found the following cheapest return flights from Orlando (MCO) to Porto (OPO) in May 2026 (see full year).

Return flights

12 May - 19 May Spirit Airlines
10 May - 24 May Icelandair
10 May - 23 May Icelandair
09 May - 19 May Frontier Airlines
12 May - 22 May Spirit Airlines
11 May - 23 May Spirit Airlines
19 May - 09 Jun Frontier Airlines

Also check the deals for one-way flights from Orlando to Porto in May.

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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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