What are the most popular routes to Dubuque?
| Iowa City - Dubuque | Average pricePEN 254 | Average duration5h 35m | Daily departures3 | |
| Denver - Dubuque | Average pricePEN 650 | Average duration19h 10m | Daily departures1 | |
| Naperville - Dubuque | Average pricePEN 324 | Average duration3h 40m | Daily departures1 | |
| Chicago - Dubuque | Average pricePEN 254 | Average duration4h 30m | Daily departures1 | |
| Oskaloosa - Dubuque | Average pricePEN 383 | Average duration6h 15m | Daily departures1 | |
Top departures from Dubuque