AirHint found the following cheapest return flights from Washington (IAD) to Nassau (NAS) in August 2025 (see full year).

Return flights

30 Aug - 06 Sep	United
19 Aug - 26 Aug	Delta
20 Aug - 27 Aug	Delta
30 Aug - 03 Sep	Delta
24 Aug - 30 Aug	Delta
30 Aug - 02 Sep	Delta
26 Aug - 02 Sep	Delta
28 Aug - 02 Sep	Frontier Airlines
29 Aug - 02 Sep	Frontier Airlines
21 Aug - 24 Aug	Frontier Airlines
16 Aug - 19 Aug	Frontier Airlines
30 Aug - 01 Sep	Frontier Airlines
29 Aug - 01 Sep	Frontier Airlines
28 Aug - 01 Sep	Frontier Airlines

Also check the deals for one-way flights from Washington to Nassau in August.

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 Nassau in August from 335€

Return flights