Here's another look at Bureau of Transportation data, this time examining all 2016 flights originating and/or departing a U.S. city. I've narrowed down the focus to just examine Houston flights and determine the most important connections to other cities in terms of passenger and freight data.

And just for fun the first sheet is for if you want to get far away, which Houston airline will take you furthest?

Source: https://public.tableau.com/views/AirTravel/HoustonOnward?:embed=y&:display_count=yes

Summary

The highest proportion of flights departing Houston are going to land in Texas, but the next two options are California and Florida. The top destination city is Los Angeles by total number of passengers, but Atlanta receives the most flights. The top international destination is Mexico City, with Cancun and London following. Air freight volume departing Houston lands in Memphis, Anchorage and Louisville in that order. The data also suggests that FEDEX has a major hub in Memphis and UPS has their hub in Louisville.