Booking a Flight to Tour Kenya

Getting a flight to tour Kenya was the trickier bit.
I came to realize, at least at the time I made my Kenya tour that there were no direct flights to Kenya from the United States, and that to tour Kenya I would have to connect in Europe.
At least, I also came to know that Kenya's flag carrier - an airline called Kenya Airways has fully embraced modernity and actually allows for online booking, to my utmost relief!
Still I found the idea of not having direct flights from the United States to Kenya quite surprising, given that the air traffic between both countries runs into the millions annually, or so an authoritative website claims.
I believe that this lack of direct flights between the two countries hinders many Americans who would otherwise like to tour Kenya, but I was informed that the restriction is due to security concerns or something, I can't quite remember well.
But the most amazing thing I learnt when booking the flight for my Kenya tour was that I could actually go to Kenya - almost half a world away - on less than $1000! - which translates to less than $2000 for the whole Kenya tour - to and from.
The friend of mines who had made a successful Kenya tour further told me that travelling within Kenya was really cheap, and that for example for as little as $40, I could get a flight between Neirobi and Mombasa, Kenya's main cities.