Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Orlando to Dubuque as you normally would.
Dubuque (DBQ) is the airport you will fly into if you book a flight from Orlando to Dubuque. You should not have trouble finding flights to Dubuque from Orlando; the airport handles an average of 0 inbound flights from Orlando per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Dubuque airport from Orlando. It is only a 7.1 mi journey from Dubuque (DBQ) to Dubuque’s city center.