What are the most popular routes to Monmouth?
| Peoria - Monmouth | Average priceR 492 | Average duration1h 20m | Daily departures1 | |
| Chicago - Monmouth | Average priceR 2 003 | Average duration5h 45m | Daily departures1 | |
| Champaign - Monmouth | Average priceR 934 | Average duration3h 25m | Daily departures1 | |
| Denver - Monmouth | Average priceR 3 135 | Average duration15h 55m | Daily departures1 | |
| Omaha - Monmouth | Average priceR 1 632 | Average duration6h 15m | Daily departures1 | |