Categories Articles I spent about $23 an hour for Frontier Airlines’ premium class. I’d upgrade again, but only on one kind of flight. Post author By crystalg Post date August 11, 2026 Business Insider Business Insider Tags About, again, Airlines, Class, flight, Frontier, Hour, Kind, Only, premium, Spent, Upgrade ← Mark Zuckerberg Just Published a 6,500-Word Essay on AI — Here Are the Crib Notes → Simple Balance, Agility Test Predicts Older Adults’ Risk Of Dying Within 7 Years