Timetables in Cape Verde are not to be taken too seriously - don't be too surprised if that boat departs ahead of schedule . This is important to consider if you decide to do some island-hopping. Due to weather and other conditions flights may be delayed or canceled. Carry your toothbrush with you and build in some buffer time to your planning especially if you need to meet an international connection.
TACV Cabo Verde (http://www.flytacv.com/) airlines has regular flights between the majority of the islands.
If you can afford to wait until you arrive, domestic tickets are cheaper if purchased in Cape Verde.
If your international flights are booked with TACV, you can purchase a Cabo Verde Air Pass for flights within 21 day period. Price start at €110 for two coupons and €60 for every extra coupon.
TACV flights can be rebooked for 2,000$.
TACV Cabo Verde Islands (http://www.flytacv.com/)
TACV Air Pass (http://www.flytacv.com/pr...)
TACV German Site (http://www.tacv.de/)
Cabo Verde Express (http://www.caboverdeexpre...)