Furthermore, While there has been a little bit of a disconnect between U.S. airlines and jet fuel prices, the recent pullback in crude oil could have helped airliners cut down on costs.

Investors can look to the U.S. Global Jets ETF (NYSEArca: JETS) to access the growth opportunity in the airline industry. The ETF is the only available pure-play fund that focuses on the global aviation industry, including not just airlines but also airline operators and manufacturers.

Delta, Southwest, American and United are the top four holdings in JETS, accounting for 49.4% of the total portfolio.

For more information on the airline ETF, visit our Airline category.