List of busiest passenger flight routes

By available seats The following are the lists of the world's busiest flight routes based on the number of seats available in the flights scheduled in both directions. Note that these statistics do not consider the number of passengers actually carried (load factor). OAG did not conduct the busiest flights survey in 2020. Top 10 flight routes by available seats International flight routes (airport pairs) by available seats By aircraft movements The following are the lists of the world's busiest flight routes based on the number of scheduled flights in both directions. Note that these statistics do not consider the number of passengers carried. Domestic International The only international route to make the Top 50 busiest routes in 2021 was between Saint Barthélemy (SBH) and Sint Maarten (SXM). ==Regional statistics==

Europe Busiest flight routes inside the EU, UK, Switzerland, Iceland and Norway. Figures are only available for EU countries, Switzerland, Iceland and Norway. Passengers of domestic routes in countries is fewer than 1 million, except for Russia, Ukraine, and Turkey, based on airport statistics among other European countries (excluding EU members, Switzerland, Iceland, and Norway). The St. Petersburg Pulkovo Airport – Moscow (three airports) route was used by 2,965,331 passengers in 2013. The UK has not reported for 2021 and parts of 2020, due to Brexit, but data is available from EU/Eurostat countries for flights to/from the UK, but not for UK domestic or UK intercontinental flights. The multiple airports of London lower the airport-to-airport figures; the busiest UK domestic route in 2019 was Heathrow – Edinburgh with 1,196,921. • ==National statistics==

Brazil China India Mexico ==See also==