Every once in a while when you cannot find a list or comparison on the internet, it is time to find the individual data sources and create the comparison database yourself. First it was the tallest airport control towers, then the largest airports by land area, then the longest underwater highway tunnels, and so on and so on.
In that spirit of discovery, below is a list of the busiest single-runway commercial airports based on 2014 and in some cases 2013 passenger data. I hope the information is as useful to you as it is interesting to me. One fascinating tidbit is the only one of these airports I have personally ever flown in/out of is #1 – London Gatwick.
Any updates, additions, or corrections are most welcome.
UPDATE: Istanbul’s Sabiha Gökçen Airport est. 28 million passengers in 2015, which would put it in second place.. Thank you, Timur!