AirHint found the following cheapest return flights from Boston (BOS) to Sofia (SOF) in November 2025 (see full year).
Return flights
| 04 Nov - 18 Nov | Austrian Airlines | ||
| 23 Nov - 13 Dec | Austrian Airlines | ||
| 02 Nov - 22 Nov | KLM | ||
| 25 Nov - 07 Dec | KLM | ||
| 14 Nov - 28 Nov | Lufthansa | ||
| 27 Nov - 20 Dec | Iberia | ||
| 03 Nov - 29 Nov | TAP | ||
| 04 Nov - 29 Nov | TAP |
Also check the deals for one-way flights from Boston to Sofia in November.
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