As global passenger numbers continue to pick up, Frank Holmes, CEO of U.S. Global Investors, says the global airline industry faces a strong upside in the next 12 months as the bottom took place last year when the vaccines were rolled out, with pent up demand likely to unfold this summer. 

He also says that the surge of ancillary fees are likely to drive growth in the industry, as well as business travel, which has the biggest profit margin for the airline industry.