4/18 7:01 AM PT -- Jet Blue is responding to PVZ ... telling us it was actually her fault she missed the flight.
"Our records indicate this customer missed her flight and was put on the next available flight. This flight was not cancelled," a JetBlue rep said.
"There are times in which the gate assignment for a flight is changed prior to take off."
"When these changes happen, announcements are made in the terminal and monitors will reflect these changes to notify customers."
Paige VanZant is super pissed at JetBlue for apparently canceling her flight without letting her know ... and the AEW star let them have it, blasting them online.
The 28-year-old fighter/wrestler ripped the airline on Thursday via Instagram -- alleging JB royally screwed her over at a Florida airport.
"F U JetBlue," VanZant said, "Just sat at my gate for over an hour waiting for my flight."
"Never got an updated gate or delay info. Went to ask where the flight is. Apparently, they changed the gate and didn't tell anymore."
Her flight was pushed to Friday, which sent PVZ through the roof when she realized other families were stranded, too.
"They will not get us on a flight until tomorrow. I'm lucky I live in Florida. What about all these other families!!!!"
"Multiple families with nowhere to sleep. JetBlue you suck."
To make matters worse, VanZant says her flight was delayed again on Friday but finally took off this morning.
We reached out to JetBlue for a comment ... but so far, no word back.
According to VanZant's IG, it looks like she's heading to LAX ... where we spoke to her last month about her new AEW deal.
Safe flight, everyone!