AirHint found the following cheapest return flights from Milwaukee (MKE) to London (LHR) in December 2025 (see full year).
Return flights
| 09 Dec - 16 Dec | Air Canada | ||
| 10 Dec - 17 Dec | Lufthansa | ||
| 09 Dec - 17 Dec | Lufthansa | ||
| 16 Dec - 30 Dec | Air Canada | ||
| 12 Dec - 04 Jan | Lufthansa |
Also check the deals for one-way flights from Milwaukee to London in December.
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