The carrier will begin the service on May 1, which will be operated on a Boeing 787 Dreamliner.
On Monday, Wednesday, Friday and Saturday, the flight will depart Doha at 7:25am and arrive in the Welsh capital at 12:50pm – with a return service leaving Cardiff at 3:55pm arriving in Qatar at 00:50am.
On Tuesday, Thursday and Sunday, the service will fly from Doha at 1:15am and will arrive in Cardiff at 6:40am.
A returning flight will then depart at 8:10am reaching Doha by 5:05pm.