What are the most popular routes to Monmouth?
| Peoria - Monmouth | Average priceR 482 | Average duration1h 20m | Daily departures1 | |
| Chicago - Monmouth | Average priceR 1 965 | Average duration5h 45m | Daily departures1 | |
| Champaign - Monmouth | Average priceR 916 | Average duration3h 25m | Daily departures1 | |
| Denver - Monmouth | Average priceR 3 075 | Average duration15h 55m | Daily departures1 | |
| Omaha - Monmouth | Average priceR 1 601 | Average duration6h 15m | Daily departures1 | |