Summary Paris (CDG) to Saint-Denis (RUN) is the world's longest domestic route at 5,809 miles. Air Austral and Air France are the only carriers offering flights on the CDG to RUN route with Boeing 777s. Most of the world’s longest domestic flights are operated by French airlines.

Domestic flights are typically associated with short, quick trips on regional jets. However, historical and political factors in some countries have resulted in borders that span vast distances, making domestic flights much longer. This article will take a closer look at the world's top five longest-scheduled domestic flights.

1 Paris (CDG) to Saint-Denis (RUN) Operating airlines: Air France, Air Austral The Paris Charles de Gaulle International Airport (CDG) to Saint-Denis Roland Garros Airport (RUN) corridor is considered the longest scheduled route, covering 5,809 miles (9,348 kilometers). Only two airlines currently offer direct flights to the island: Air France and Air Austral, both French carriers. Air France operates seven weekly flights with its Boeing 777 widebody aircraft, while Air Austral offers 14 weekly flights, also using Boeing 777s.

Air Austral's main hub is at RUN airport. Air Austral currently operates a fleet of nine aircraft, including three Airbus A220s, three Boeing 777-300ERs, two Boeing 787-8 Dreamliners, and a single ATR 72-600 turboprop, as per ch-aviation . The airline's Boeing 777-300ERs, which are specifically deployed on this route, can seat up to 438 passengers in th.