Launching a tirade against the airline, the conservative commentator went as far as sharing a photo of the passenger who Delta placed in Coulter's original seat to her 1.6 million followers on Twitter.
But Delta told FORTUNE on Sunday the seat change that caused Coulter's frustration was a minor one. In fact, she was placed in another seat in the same row, switching from an aisle seat to a window seat.
"She was on her original flight, a few seats over from her original seats, same row," a spokesperson for Delta said.
Delta has reached out to Coulter to address the complaint.
Coulter was on Delta Airlines flight 2862 from New York City's LaGuardia Airport to Palm Beach International Airport in West Palm Beach, Fla.
Coulter's comments against the airline ranged from calling Delta "the worst airline in America" to criticizing the airline's WiFi. Most of her complaints were focused on why Delta switched her seat, which she called an "extra room seat" that she had "pre-booked."
Coulter on Sunday targeted the airline company again, saying they instead gave her seat to a "dachshund-legged woman." (Coulter is 6 feet tall.)
But this isn't Coulter's first time criticizing airlines this year. Back in April when a doctor was dragged off a Louisville, Ky.-bound United Airlines flight, Coulter shared her own take.
"Sorry about the dragging, but the convicted pill-mill doctor should be deported," Coulter tweeted.