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

Return flights

29 Aug - 02 Sep	KLM
30 Aug - 02 Sep	Air Serbia
27 Aug - 01 Sep	easyJet
30 Aug - 01 Sep	Air Serbia
30 Aug - 06 Sep	Air Serbia
27 Aug - 03 Sep	Air Europa
28 Aug - 02 Sep	KLM
29 Aug - 01 Sep	KLM
20 Aug - 27 Aug	easyJet	direct
29 Aug - 03 Sep	Air Serbia
22 Aug - 25 Aug	Air Serbia
21 Aug - 05 Sep	easyJet
26 Aug - 29 Aug	Vueling Airlines
22 Aug - 29 Aug	Air Serbia
22 Aug - 30 Aug	Air Serbia
24 Aug - 29 Aug	KLM
24 Aug - 30 Aug	KLM
19 Aug - 24 Aug	KLM
19 Aug - 26 Aug	KLM
22 Aug - 26 Aug	Air Serbia

Also check the deals for one-way flights from Lisbon to Prague 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.

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Cheapest return flights from Lisbon to Prague in August from 237€

Return flights