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

Return flights

11 Dec - 18 Dec	United
04 Dec - 11 Dec	United
10 Dec - 15 Dec	United
11 Dec - 15 Dec	Delta
10 Dec - 14 Dec	Delta
11 Dec - 14 Dec	Delta
12 Dec - 15 Dec	United
06 Dec - 16 Dec	Delta
18 Dec - 22 Dec	United
13 Dec - 20 Dec	United	direct
31 Dec - 04 Jan	Copa
27 Dec - 10 Jan	Frontier Airlines
20 Dec - 05 Jan	Frontier Airlines
27 Dec - 01 Jan	Frontier Airlines
27 Dec - 02 Jan	Frontier Airlines
27 Dec - 04 Jan	Frontier Airlines
26 Dec - 02 Jan	Frontier Airlines
26 Dec - 04 Jan	Frontier Airlines
31 Dec - 04 Jan	United	direct
26 Dec - 02 Jan	United	direct

Also check the deals for one-way flights from Washington to Nassau 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 Nassau in December from 330€

Return flights