The low-cost airline and cargo hub near Milan was closed for about 2 ½ hours early Friday, creating delays during the busy summer travel period. Some flights were rerouted to Milan's Malpensa airport.
Television images showed the plane's nose partially blocking a roadway flanked by emergency vehicles.
Italian aviation officials said the Boeing 737 400 overshot the runway on landing from Paris' Charles de Gaulle airport just after 4 a.m. The pilot and first officer were both uninjured. The cause was under investigation.
The Bergamo airport is Italy's third-busiest, with over 10 million passengers last year.