The payout for passengers “has no strings attached” and does not affect their rights, according to a Delta Air Lines spokesperson.

Investigators are probing the causes of an unusual plane crash at Canada's largest airport on Monday, when a regional jet flipped upside down upon landing during windy weather, sending 21 of the 80 people on board to hospital.

Delta Airlines is offering $30,000 to each passenger onboard the plane that overturned on the runway at Toronto Pearson International Airport as investigators continue to look into the incident.