AirHint found the following cheapest one-way flights from Buffalo (BUF) to London (LHR) in December 2025 (see full year).
One-Way flights
| 14 Dec | jetBlue | ||
| 31 Dec | KLM | ||
| 29 Dec | KLM | ||
| 28 Dec | KLM | ||
| 26 Dec | Air France |
Also check the deals for return flights from Buffalo to London in December.
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