The map above shows the number of passengers that traveled by air for every resident in each US state.  Hawaii is the only state to have more than ten air passengers for every resident in the state.

The map above shows the number of passengers that traveled by air for every resident in each EU state.  The two island states of Cyprus and Malta have a commanding lead over all other EU states and are the only two states with more than ten air passengers for every inhabitant.

The map above shows the number of passengers that traveled by air in each US state.  California has a commanding lead over every other US state.

The map above shows the number of passengers that traveled by air in each EU state.  The United Kingdom has a commanding lead over every other EU state.

The map above shows the number of airports that serve at least 15,000 passengers per year for every 10,000 square miles in each US state.  Rhode Island has the most busy airports per square mile.

The map above shows the number of airports that serve at least 15,000 passengers per year for every 10,000 square kilometers in each EU state.  Malta has the most busy airports per square kilometer.

The map above shows the number of airports that serve at least 15,000 passengers per year for every million residents in each US state.  Alaska has the most airports per capita by a large margin.

The map above shows the number of airports that serve at least 15,000 passengers per year for every million residents in each EU state.  Sweden has the most busy airports per capita.

The map above shows the number of airports that serve at least 15,000 passengers per year for every million international tourists each US state receives.  Alaska has the most airports for every million international tourists by a large margin.

The map above shows the number of airports that serve at least 15,000 passengers per year for every million international tourists each EU state receives.  Romania has the most airports for every million tourists.