Cheapest return flights from Atlanta to Porto in July from $852

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 July 2025 (see full year).

Return flights

02 Jul - 09 Jul Frontier Airlines
15 Jul - 22 Jul Frontier Airlines
07 Jul - 14 Jul Frontier Airlines
01 Jul - 08 Jul Frontier Airlines
18 Jul - 25 Jul Spirit Airlines
11 Jul - 18 Jul Spirit Airlines
31 Jul - 07 Aug Frontier Airlines
08 Jul - 15 Jul Spirit Airlines
10 Jul - 17 Jul Spirit Airlines
28 Jul - 04 Aug Frontier Airlines
05 Jul - 12 Jul Spirit Airlines
17 Jul - 24 Jul Frontier Airlines
30 Jul - 06 Aug Turkish Airlines
29 Jul - 05 Aug Frontier Airlines
25 Jul - 01 Aug Spirit Airlines
26 Jul - 02 Aug Spirit Airlines
27 Jul - 03 Aug Lufthansa

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

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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