A father and daughter say they were unfairly kicked off a flight after the crew overheard them talking about the poor customer service.

Eric Miller, 70, and his daughter Whitney Miller, 25 claimed they were chatting quietly about their bad experience, including a six-hour delay, when they were confronted aggressively by flight crew.

They were booted off the plane just 15 minutes after they had boarded in Florida last Wednesday, they said.

Whitney, a nursing student from Jacksonville, Florida, summarised the incident on Facebook.

“NEVER FLY WITH THIS COMPANY” she wrote.

Image: Facebook / Whitney Miller

“There’s a first [time] for everything” she said.

The Millers were reportedly heard discussing how “miserable” the flight crew seemed, saying they never wanted to travel Frontier again.

"Our flight attendants are customer service and safety professionals,” Frontier Airlines told News 6.

The airline said the Millers’ behaviour was “inappropriate” and that their “number one priority” is the safety and security of their passengers and crew.

The airline further claimed the Millers had been shouting profanities at the crew, calling an attendant a b---h. [mail link]

However, other passengers said this was not what happened, including the one who filmed a video of the Millers being ejected from the flight.

They said they did not hear anything offensive from the Millers but rather, the crew seemed to be eavesdropping on the conversation.

Eric told the news channel he was shocked when he was removed from the plane, asking staff if they are “going to call police?”.

Whitney added, “What did we do wrong? Why are we getting kicked off the plane?”.

The family’s ticket price was refunded and they now plan to travel by road to visit their sick relative.

Eric said it was his worst flying experience in 70 years.