The Felix-Houphouet Boigny International Airport has daily scheduled flights to and from Paris Air France (http://www.airfrance.com/) and Brussels Brussels airlines (http://www.brusselsairlines.com). There are also regular flights to other West-African capitals. The airport is a modern facility and increased security has shaken its old reputation as a place for travelers to be ripped off.
It is ill advised to try to enter CÃ´te d'Ivoire from Guinea, Liberia, Mali, or Burkina Faso. The Ghanaian border is fairly secure. If you enter at Elubo, you can easily catch a shared taxi to Aboisso and then a bus to Abidjan. There are about ten military check-points between the border and Abidjan so have your documents ready. If you do not have proper documentation of your inoculations at the border you will be forced to pay a small fine and they will give you an injection at an on-site clinic.