AirHint found the following cheapest return flights from Washington (DCA) to Sofia (SOF) in January 2026 (see full year).
Return flights
| 30 Jan - 17 Feb | KLM | ||
| 29 Jan - 16 Feb | KLM | ||
| 16 Jan - 25 Jan | KLM | ||
| 15 Jan - 29 Jan | Emirates | ||
| 25 Jan - 08 Feb | Emirates | ||
| 20 Jan - 07 Feb | Emirates |
Also check the deals for one-way flights from Washington to Sofia in January.
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