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

Return flights

27 Aug - 15 Sep	Air Serbia
31 Aug - 13 Sep	easyJet
31 Aug - 22 Sep	transavia
25 Aug - 08 Sep	Air Serbia
28 Aug - 03 Sep	easyJet
31 Aug - 07 Sep	easyJet
19 Aug - 13 Sep	Air Serbia
29 Aug - 03 Sep	easyJet
27 Aug - 01 Sep	easyJet
24 Aug - 01 Sep	easyJet
24 Aug - 30 Aug	easyJet
28 Aug - 30 Aug	easyJet
27 Aug - 30 Aug	easyJet
24 Aug - 31 Aug	easyJet
26 Aug - 30 Aug	easyJet
23 Aug - 29 Aug	LOT
24 Aug - 29 Aug	Lufthansa
23 Aug - 27 Aug	Lufthansa
19 Aug - 26 Aug	SWISS
26 Aug - 31 Aug	easyJet

Also check the deals for one-way flights from Amsterdam 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 Amsterdam to Sofia in August from 219€

Return flights