The Data Collection Process When I started the data collection process for this map I knew not every airport page on Wikipedia reported how many passengers flew to and from the destinations they connect with..But I suspected I could fill in the blanks if the other destinations reported what passenger counts they were seeing..Neither of Moscows two big airports, Sheremetyevo and Domodedovo, report how many passengers travel to and from their top destinations on their Wikipedia pages..But Bangkoks Suvarnabhumi Airport Wikipedia page reports that 266,889 and 316,055 passengers flew to and from Sheremetyevo and Domodedovo respectively in 2013..Novosibirsks Tolmachevo did report 215,408 passengers coming and going in 2013 from Bangkoks Suvarnabhumi which lines up closely with 212,715 reported on Suvarnabhumis Wikipedia page..Prague Airport and Charles de Gaulle Airport reported 637,566 and 790,922 passengers respectively flying between their airports and Sheremetyevo..But others, like Kievs Boryspil grouped passenger counts by major city by combining the numbers for Domodedovo and Sheremetyevo..The routes for Sheremetyevo & Sharm el-Sheikh, Sheremetyevo & Krasnodar, Sheremetyevo & Kaliningrad had no reported passenger numbers at all..A large part of passenger traffic in China, India, Brazil and South Africa isnt broken down by destination/arrival airport..Of the 28,731 wikipedia articles I found with a title that has Airport in it I extracted 5,958 airport entities and 343^ of those airports had passenger counts broken down by destinations they connect with..Most of the said pages had at least the top 10 connecting airports with corresponding passenger counts for the year, many had the top 20 and a few stars (mostly in Western Europe and South East Asia) had over 50..^ This number is probably higher but 343 was all my parser could sort out.. More details