Cheapest return flights from Sofia to Washington in October from $440

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

Return flights

09 Oct - 18 Oct KLM
03 Oct - 09 Oct KLM
25 Oct - 05 Nov KLM
24 Oct - 04 Nov KLM
02 Oct - 21 Oct KLM
03 Oct - 21 Oct KLM
31 Oct - 07 Nov KLM
04 Oct - 13 Nov Air France
04 Oct - 14 Nov Air France
04 Oct - 21 Oct Air France
01 Oct - 10 Oct KLM
02 Oct - 10 Oct KLM

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

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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