I don't think you can fly into Windehok [sp] from the U.S., and most will advise against flying through Europe to Africa when going on safari. When I went to RSA, we stayed a couple nights in Johannesburg at a B&B (Afton House) before our PH picked us up. There were hunters there going to Namibia, and I understand that most fly into Joburg, spend the night, then fly from there to their destination in Namibia (or elsewhere in southern Africa). The people at Afton house are great, and they pick you up at the airport and return you for your connecting flight. Thus, you would claim your luggage in Joburg, then recheck it. You'll probably have to claim your luggage and recheck it anyway to get through immigration and customs once you land in Joburg.