They currently sit second in Pool One of the competition, with Warriors one place behind them.
Biarritz opened their European campaign with a 33-10 loss at Sale Sharks before cruising to a bonus-point victory at home to Oyonnax.
Warriors secured a hard-fought draw in Oyonnax on the opening weekend of the competition but were defeated by Sale in round 2.
It means Dean Ryan's men could potentially overtake their rivals to go second with victory on Thursday before they travel to France for the return fixture next week.
Seated tickets for Thursday's clash are available from £15 for adults and £7.50 for juniors and are available by calling 01905 459309, visiting the Warriors Box Office or clicking here.
Away tickets for the Aviva Premiership matches at Gloucester Rugby and London Irish are also now on sale.
Gloucester v Warriors
Sunday 22 December (kick-off 2pm)
JS Stand; Seated - Adult £28
The Shed: Standing - Adult £23; Concession £19
Stowford Press Stand: Standing (uncovered) - Adult £15; Concession £14; Junior £5
Away coach travel is £5 for Season Ticket/Debenture holders and £7 for others.
London Irish v Warriors
Saturday 4 January (kick-off 3pm)
Premium East Stand: Seated - Adult £32; Concession £28; Junior £10
Standard East Stand: Seated - Adult £28; Concession £24; Junior £10
South Stand: Seated (unreserved) - Adult £20; Concession £15; Junior £10
Away coach travel is £11 for Season Ticket/Debenture holders and £13 for others