For whatever reasons, airfares to Nassau are higher than other Caribbean islands. I've been tracking these fares and this one, altho' it's $275, is considerably cheaper than normal. I hope these dates work for you.
American Airlines have round trip airfares travelling from Washington DC (DCA) to Nassau Bahamas (NAS) for $275, nonstop. These are basic economy fares with an option to upgrade to main cabin. Always read the fare rules and restrictions before final checkout.
Departs DCA: April 6, 7
Returns: April 13
Use dates and book it on your reputable and known OTAs such as Expedia [expedia.com]
, Orbitz [orbitz.com]
, Priceline [priceline.com]
or American Airlines [aa.com]
Want to see more travel deals? Click here or here.