AirHint found the following cheapest return flights from Chicago (MDW) to Kuala Lumpur (KUL) in December 2025 (see full year).
Return flights
| 01 Dec - 27 Jan | Delta | ||
| 06 Dec - 20 Dec | Delta | ||
| 22 Dec - 19 Jan | Delta | ||
| 12 Dec - 10 Jan | Delta |
Also check the deals for one-way flights from Chicago to Kuala Lumpur in December.
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