AirHint found the following cheapest return flights from Lisbon (LIS) to Sofia (SOF) in August 2026 (see full year).

Return flights

27 Aug - 03 Sep	TAP
22 Aug - 31 Aug	TAP
26 Aug - 02 Sep	TAP
19 Aug - 26 Aug	TAP
12 Aug - 15 Aug	TAP
05 Aug - 12 Aug	TAP
05 Aug - 07 Aug	Ryanair
26 Aug - 31 Aug	TAP
12 Aug - 17 Aug	TAP
05 Aug - 08 Aug	TAP
19 Aug - 25 Aug	TAP
09 Aug - 15 Aug	SKY express
30 Aug - 16 Sep	SKY express
26 Aug - 16 Sep	SKY express
30 Aug - 09 Sep	SKY express
23 Aug - 09 Sep	SKY express
26 Aug - 09 Sep	SKY express
30 Aug - 02 Sep	SKY express
23 Aug - 02 Sep	SKY express
19 Aug - 09 Sep	SKY express

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.

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Cheapest return flights from Lisbon to Sofia in August from $200

Return flights