I present to you a top 5 of the airlines by the number of routes operated. The 3 large American airlines, which also have the largest fleets in the world, are in this ranking.
The 5 TOP shown below applies to the 2018. In 2019 the situation may change. The aeronautical industry is constantly evolving and expanding.
TOP 5 the largest route networks
5. United Airlines - 996 routes
5 is United Airlines, one of the largest airlines in the world. He owns a fleet of 750 aircraft and flies 996 routes.
The largest operational hub is at Chicago O'Hare International Airport.
4. easyJet - 1002 routes
4 is one of the largest low-cost airlines in the world. It's EasyJet, which flies on 1002 routes.
The largest easyJet operational base is at London Gatwick International Airport.
3. Delta Air Lines - 1058 routes
We enter the podium area. In the 3 place is Delta Air Lines with 1058 routes. It has a fleet of over 870 aircraft. Delta flies to every continent on Earth and is the only American carrier with regular traffic to Africa.
The largest operational hub of Delta Air Lines is at Atlanta's Hartsfield – Jackson International Airport.
2. American Airlines - 1122 routes
In the position of 2 in our ranking is American Airlines with 1122 of routes served. American Airlines owns the largest fleet worldwide, consisting of over 1500 aircraft.
American Airlines is the largest airline in the world: by fleet size, revenues, transported passengers, regular flights, miles traveled and number of destinations served. But it is not the largest number of routes.
The largest American Airlines hub is at Dallas / Fort Worth International Airport
1. RYANAIR - 1868 routes
On the first position in the TOP 5 the largest route networks are RYANAIR. Europe's largest low-cost carrier operates flights on 1868 routes. It owns one of the largest fleets, which consists of over 450 of Boeing 737 aircraft.
RYANAIR's largest operational hub is at London Stansted International Airport, where 44 aircraft are allocated.
* NOTE: We calculated the route as any connection between 2 destinations on both segments. Ex. Bucharest - London Stansted - Bucharest is a route.