Ulster will begin their Heineken Cup campaign with a home game against Clermont Auvergne at Ravenhill on Saturday 12 November at 1540 GMT.
The Irish province next travel to Welford Road to take on Leicester on Saturday 19 November at 1800.
Brian McLaughlin's side will then face Aironi at Ravenhill on Friday 9 December, with a 1930 kick-off.
Ulster are away to Aironi on Saturday 17 December, with games against Leicester and Clermont in January.
The fifth set of Pool Four games will be played from 13 to 15 January, with the final set of fixtures on 20-22 January.
Ulster will play Aironi at Stadio Luigi Zafanella on Saturday 17 December (1430), with Parc des Sports Marcel Michelin hosting the Clermont-Ulster game on 20-22 January.