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

Return flights

27 Aug - 30 Sep	Wizz Air
28 Aug - 03 Sep	Lufthansa
23 Aug - 13 Sep	Ryanair
26 Aug - 02 Sep	Vueling Airlines
27 Aug - 29 Aug	Iberia
30 Aug - 06 Sep	Norwegian
27 Aug - 01 Sep	Ryanair
26 Aug - 04 Sep	Vueling Airlines
26 Aug - 28 Aug	Vueling Airlines
28 Aug - 07 Sep	Ryanair
30 Aug - 03 Sep	Norwegian
27 Aug - 31 Aug	Iberia
27 Aug - 30 Aug	Ryanair
26 Aug - 29 Aug	Vueling Airlines
25 Aug - 01 Sep	easyJet
20 Aug - 28 Aug	Vueling Airlines
20 Aug - 27 Aug	Ryanair
19 Aug - 26 Aug	Wizz Air
24 Aug - 26 Aug	easyJet
20 Aug - 29 Aug	Ryanair

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

Cheap car rent in Sofia

Cheapest return flights from Lisbon to Sofia in August from 222€

Return flights