Cheap Train tickets to Burlington, IA, US

What are the most popular routes to Burlington?

Chicago - BurlingtonAverage price£65Average duration3h 34mDaily departures2
Chicago - BurlingtonAverage price£85Average duration7h 50mDaily departures1
Galesburg - BurlingtonAverage price£21Average duration51mDaily departures1
Osceola - BurlingtonAverage price£39Average duration2h 50mDaily departures1
Omaha - BurlingtonAverage price£53Average duration5h 18mDaily departures1