Cheapest return flights from Washington to Sofia in April from $624

Best time to book flights for Washington (IAD) to Sofia (SOF) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to Sofia (SOF) in April 2025 (see full year).

Return flights

23 Apr - 06 May Air Canada
21 Apr - 06 May SWISS
29 Apr - 06 May United
16 Apr - 23 Apr Turkish Airlines
25 Apr - 09 May Turkish Airlines
27 Apr - 04 May United
25 Apr - 02 May United
06 Apr - 14 Apr TAP

Also check the deals for one-way flights from Washington to Sofia in April.

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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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