Bologna International Airport (BLQ) has got excellent connections to the main European intercontinental hubs. You can check on the airport timetable page for more infos.
Airport shuttle bus timetable page -> BLQ Bus
You need to buy the one way ticket (6 EUR - cash only) on board. Journey time to get to the city center is approximately 25 min depending on traffic.
Suggested stops to get off the bus are "Stazione Centrale" (Railway Central Station) or "Mille".
Here below you'll find a selection of hotels that are in a convenient position, in the city center, close enough to reach IRA easily.
Visualize Bologna Workshop hotels in a larger map
A more complete list of hotels is available here