The relationship is stated to be complicated, but both are now single.
"As soon as they felt they couldn't figure out their issues, they chose to separate so their disagreements won't affect Stormi", the source adds.
Scott has previously denied all cheating rumors, first in December 2018 when an account posted a shot of a man who appears to be Scott embracing a girl, and again in February when speculation swirled after he canceled a concert.
"Kylie and Jaden have been hanging out lately and it made Tyga suspicious", a source told E!
The duo were last spotted together on Aug 28, with one-year-old Stormi, at the premiere of Netflix documentary Travis Scott: Look Mum I Can Fly.
"They fight over ridiculous things and Kylie can be very skeptical about Travis".
"Kylie and Travis haven't been together as a couple for roughly a month, but they're on good terms", the source says.
The Times was unable to contact reps for Jenner and Scott immediately Wednesday.
The outing was a family affair as Jenner and Scott brought out baby Stormi.
People Magazine has quoted a "source" as saying "They are taking some time but not done..."
"Kylie and Travis have been on and off at various times throughout their relationship". Jenner attended Justin Beiber's wedding in SC without Scott, leading us to believe the split is for real.
'She would never take that away from him'.
The news comes just two months after the couple celebrated Kylie's 22nd birthday on a lavish yacht tour of the Mediterranean with her family and friends.
Once news of their split broke fans quickly noticed it had been a few weeks since Jenner has posted with or about her baby daddy on social media.