India, May 8 -- A viral video that shows a passenger being denied boarding and taunted by Frontier Airlines gate agents has sparked outrage online. According to the New York Post, the incident took place last Friday at Raleigh-Durham International Airport, where a 45-year-old father-of-three was attempting to check in for his flight to Boston after a week-long business trip.

The man, who did not want to be identified, arrived at the airport roughly 50 minutes before departure - missing Frontier's strict 60-minute pre-departure check-in deadline.

Unable to use the self-service kiosk, the passenger approached Frontier agents at the counter. He was informed that he would need to pay a $25 "agent assist fee" to check in at the desk.

"They ...