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

Return flights

26 Sep - 05 Oct	jetBlue
18 Sep - 08 Oct	jetBlue
30 Sep - 07 Oct	KLM
18 Sep - 04 Oct	jetBlue
20 Sep - 30 Sep	jetBlue
09 Sep - 28 Sep	Emirates
17 Sep - 07 Oct	Qatar Airways
12 Sep - 19 Sep	Qatar Airways
23 Sep - 30 Sep	Air Canada
12 Sep - 15 Sep	Kenya Airways

Also check the deals for one-way flights from Washington to Lagos in September.

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 September from $843

Return flights