Cheapest return flights from Atlanta to Porto in May from $755

Best time to book flights for Atlanta (ATL) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Atlanta (ATL) to Porto (OPO) in May 2025 (see full year).

Return flights

02 May - 09 May Turkish Airlines
01 May - 08 May Turkish Airlines
01 May - 04 May Turkish Airlines
12 May - 20 May United
13 May - 21 May United
11 May - 19 May KLM
18 May - 25 May Spirit Airlines
15 May - 22 May United
17 May - 24 May Spirit Airlines
16 May - 23 May Delta
28 May - 04 Jun Frontier Airlines
30 May - 06 Jun Frontier Airlines

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

Skyscanner

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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