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

Return flights

20 Aug - 03 Sep	TAP
30 Aug - 06 Sep	Vueling Airlines
29 Aug - 04 Sep	Air Europa
22 Aug - 27 Aug	TAP
06 Aug - 13 Aug	Ryanair
29 Aug - 03 Sep	Air Europa
27 Aug - 31 Aug	Vueling Airlines
23 Aug - 28 Aug	Ryanair
25 Aug - 28 Aug	Ryanair
22 Aug - 25 Aug	TAP
14 Aug - 25 Aug	Ryanair
04 Aug - 03 Sep	easyJet
07 Aug - 26 Aug	easyJet
19 Aug - 27 Aug	Ryanair
12 Aug - 26 Aug	Ryanair
01 Aug - 01 Sep	Ryanair
27 Aug - 03 Sep	Wizz Air Malta	direct
27 Aug - 12 Sep	Wizz Air Malta	direct
27 Aug - 10 Sep	Wizz Air Malta	direct
22 Aug - 03 Sep	Wizz Air Malta	direct

Also check the deals for one-way flights from Lisbon to Bucharest 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 Bucharest in August from 218€

Return flights