That the spurt in e-commerce demand amid pandemic-led restrictions has turned out to be a huge boon for the Zacks Transportation - Air Freight and Cargo industry so far is no longer news. Despite economies reopening, the penchant for online shopping is very much present among consumers. The upcoming holiday season in the United States should boost stocks in the space further. We expect companies like United Parcel Service UPS, Atlas Air Worldwide Holdings AAWW and Air Transport Services Group ATSG to benefit from the favorable trends surrounding the industry. Despite the robust demand environment, supply-chain woes are making the companies struggle to meet elevated demand. Worker shortage is flaring up costs, thereby acting as a major headwind. 5 Stocks Set to Double Each was handpicked by a Zacks expert as the #1 favorite stock to gain +100% or more in 2021. Previous recommendations have soared +143.0%, +175.9%, +498.3% and +673.0%. Most of the stocks in this report are flying under Wall Street radar, which provides a great opportunity to get in on the ground floor.Today, See These 5 Potential Home Runs >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report United Parcel Service, Inc. (UPS): Free Stock Analysis Report Air Transport Services Group, Inc (ATSG): Free Stock Analysis Report Atlas Air Worldwide Holdings (AAWW): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research