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

Return flights

23 Dec - 04 Jan	Porter Airlines (Canada) Ltd
31 Dec - 22 Jan	Emirates
31 Dec - 27 Jan	Emirates
03 Dec - 18 Dec	Ethiopian Airlines
04 Dec - 13 Dec	Ethiopian Airlines
06 Dec - 27 Dec	Ethiopian Airlines
29 Dec - 19 Jan	Ethiopian Airlines
06 Dec - 17 Dec	Delta
31 Dec - 16 Jan	Turkish Airlines
05 Dec - 28 Jan	Turkish Airlines
02 Dec - 29 Dec	Ethiopian Airlines
27 Dec - 21 Jan	Ethiopian Airlines
03 Dec - 14 Jan	Ethiopian Airlines
27 Dec - 19 Jan	Ethiopian Airlines
03 Dec - 13 Jan	Ethiopian Airlines
04 Dec - 13 Dec	United	direct
03 Dec - 18 Dec	United	direct
10 Dec - 20 Dec	Delta
05 Dec - 27 Dec	Royal Air Maroc
07 Dec - 20 Dec	Turkish Airlines

Also check the deals for one-way flights from Washington 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 Washington to Lagos in December from $1147

Return flights