This is a list of the 100 busiest airports in Europe measured by scheduled departures daily (and not number of passengers). Note that we have only accounted for scheduled passenger flights and not freighters or chartered flights. The numbers are the daily avarage from next week.
If you combine all departures from Londons five airports they would add up to over 1400 flights every day. No other city in the world has that many flight departures (2018).
Frankfurt with a top placement on this list also has the record with most destinations in the world.