Where are the Planes?

Someone asked me about the flight over the north pole, so I went back and took a closer look at the data. While I didn't have any exact north pole flights, I did find one in the dataset that was close: UAE230 going from Seattle to Dubai (see UAE230 13 hours, ouch!). Below are some histograms for lat/lon. I highlighted USA in Pac Man yellow to keep up with my pac man plotting pledge.