AirHint found the following cheapest return flights from Chicago (MDW) to Lagos (LOS) in December 2025 (see full year).

Return flights

05 Dec - 26 Dec	Delta
07 Dec - 25 Dec	Delta
15 Dec - 23 Dec	Porter Airlines (Canada) Ltd
10 Dec - 30 Dec	Delta
23 Dec - 12 Jan	Delta
18 Dec - 17 Jan	KLM
09 Dec - 06 Jan	Delta
17 Dec - 29 Dec	Delta
17 Dec - 17 Jan	Delta
17 Dec - 18 Jan	Virgin Atlantic
13 Dec - 03 Jan	Delta
16 Dec - 06 Jan	Delta
16 Dec - 05 Jan	Delta

Also check the deals for one-way flights from Chicago to Lagos in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Chicago to Lagos in December from $1078

Return flights