Virgin Atlantic will add a twice-weekly service to Bahamas from Heathrow this winter.
At the same time, the airline is increasing frequency to Barbados.
The Heathrow-Bahamas route will start on 20 November and seats on are sale from 11 August. Prices start at £713 per person.
In addition, from 31 October, Virgin Atlantic is adding more flights to Barbados.
Flights from Manchester to Barbados will increase from three times a week to five times and from Heathrow, daily flights will increase to 11 times a week.
The airline also expects to restart Tobago and Havana, Cuba in the coming months, and will launch the first direct service from Europe to St Vincent and the Grenadines in October.