National offered service to a limited number of cities with high traffic to Las Vegas.Hoping to attract more visitors from the East Coast, Harrah's Entertainment and the former Rio Hotel & Casino, Inc., each contributed $15 million toward the start-up costs of National Airlines in July 1998.Wexford Capital, owners of Republic Airways Holdings also contributed several million to this create the airline.Departing McCarran International Airport at 4:20 p.m., National Airlines Flight 354 to Dallas/Fort Worth was the carrier's last to leave the Las Vegas hub.[4][5][6] In the science entertainment television program MythBusters, a stored National Airlines 757 following their collapse is shown on camera taxing away.