AirHint found the following cheapest return flights from Frankfurt (FRA) to Porto (OPO) in July 2025 (see full year).

Return flights

30 Jul - 02 Aug	TAP
29 Jul - 02 Aug	Ryanair
30 Jul - 04 Aug	TAP
31 Jul - 02 Aug	Ryanair
28 Jul - 30 Jul	TAP
28 Jul - 05 Aug	TAP
28 Jul - 02 Aug	Ryanair
31 Jul - 04 Aug	Ryanair
28 Jul - 04 Aug	TAP
30 Jul - 01 Aug	TAP
28 Jul - 29 Jul	TAP
27 Jul - 01 Aug	TAP
24 Jul - 26 Jul	Lufthansa	direct
24 Jul - 31 Jul	Lufthansa	direct
24 Jul - 29 Jul	Lufthansa	direct
24 Jul - 27 Jul	Lufthansa	direct
28 Jul - 31 Jul	Ryanair
29 Jul - 31 Jul	TAP
27 Jul - 31 Jul	TAP
27 Jul - 30 Jul	TAP

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

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 Frankfurt to Porto in July from 228€

Return flights