You might also check Lufthansa via Frankfurt or Air France via Paris, as well as Delta connecting to KLM in Amsterdam. All of these are easy connections and nice airlines. And personally, if I'm in economy, I like being able to stretch my legs midway.
Best bet would be to get on one of the major websites (Orbitz, Kayak, Travelocity) and see what they offer.
I'm assuming the poster who suggested Lagos or Accra was joking. Do NOT do this.