AirHint found the following cheapest return flights from Prague (PRG) to Porto (OPO) in August 2025 (see full year).

Return flights

27 Aug - 03 Sep	TAP
23 Aug - 10 Sep	easyJet
20 Aug - 11 Sep	easyJet
26 Aug - 04 Sep	KLM
26 Aug - 05 Sep	KLM
20 Aug - 27 Aug	TAP
27 Aug - 06 Sep	Ryanair
22 Aug - 10 Sep	Ryanair
28 Aug - 04 Sep	KLM
23 Aug - 10 Sep	easyJet	direct
26 Aug - 02 Sep	Ryanair
19 Aug - 26 Aug	Smart Wings
23 Aug - 27 Aug	easyJet
25 Aug - 26 Aug	Lufthansa
19 Aug - 27 Aug	TAP
22 Aug - 27 Aug	TAP
20 Aug - 31 Aug	easyJet
18 Aug - 27 Aug	TAP
21 Aug - 27 Aug	TAP
25 Aug - 27 Aug	Ryanair

Also check the deals for one-way flights from Prague to Porto in August.

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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from Prague to Porto in August from 178€

Return flights