US Airways is currently running flights four days a week (Tuesday, Thursday, Saturday & Sunday) non stop from its Philadelphia hub to Barbados.
Come December 19th 2009 that will increase to daily flights through April 7th 2010.
The US Airways flights will offer 12 seats in First Class and 112 in the main cabin.
Go to http://shopping.usairways.com/Flights/AdvancedSearch.aspx?book=new to check flights or make a booking.
Have a great trip to Barbados :)