Cheapest return flights from Newark to Sofia in September from 358€

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

Return flights

10 Sep - 02 Oct Austrian Airlines
16 Sep - 30 Sep Lufthansa
11 Sep - 18 Sep Austrian Airlines
03 Sep - 27 Sep United
12 Sep - 22 Sep Austrian Airlines
06 Sep - 15 Sep Austrian Airlines
11 Sep - 21 Sep Austrian Airlines
06 Sep - 20 Sep United
14 Sep - 19 Sep Austrian Airlines

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

Skyscanner

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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