Cheapest return flights from Newark to Sofia in August from $405

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

Return flights

25 Aug - 09 Sep Austrian Airlines
08 Aug - 09 Sep LOT
25 Aug - 08 Sep United
30 Aug - 13 Sep FrenchBee
31 Aug - 07 Sep SWISS
24 Aug - 03 Sep Lufthansa
08 Aug - 08 Sep LOT
07 Aug - 21 Aug Air Canada
11 Aug - 25 Aug Air Canada
18 Aug - 24 Aug TAP
24 Aug - 31 Aug Air Canada
13 Aug - 31 Aug Austrian Airlines
08 Aug - 25 Aug Air Canada
08 Aug - 18 Aug Air Canada
07 Aug - 18 Aug FrenchBee
02 Aug - 05 Aug LOT
14 Aug - 22 Aug United

Also check the deals for one-way flights from Newark to Sofia in August.

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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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