American Airlines Group’s AAL pilots’ union is planning to picket at the carrier’s major hubs in the coming weeks to protest against heavy work schedule, fatigue and the lack of proper accommodation for the crew during the summers.As airlines began to recover from the coronavirus-induced slump in 2020, they have struggled to cater to the rapid increase in air travel demand this summer due to staffing shortages. American Airlines, Southwest Airlines LUV and others had to cancel multiple flights during the busy summer travel period due to labor shortages. Both American Airlines and Southwest Airlines carry a Zacks Rank #3 (Hold).American Airlines is not the only U.S. carrier to have been accused of improper work conditions. Earlier, Southwest Airlines’ pilots’ union filed a lawsuit against the company, alleging a change in pay and working conditions imposed by the airline as a result of the pandemic. Last month, the pilots’ union warned of pickets at airports during the winter holidays to protest the issues.American Airlines Group Inc. Price American Airlines Group Inc. price | American Airlines Group Inc. QuoteIn an emailed statement to Reuters, the Allied Pilots Association, representing American Airlines’ pilots, said that it will picket at Miami International Airport and Dallas/Fort Worth International Airport among other places.The Reuters report quoted the union, "Our airline needs scheduling practices that support the safety margin, respect pilots' and passengers' needs, and de-risk American Airlines to protect and improve revenue."Key PicksSome better-ranked stocks in the airline space are Controladora Vuela Compania de Aviacion, S.A.B. de C.V. VLRS and Corporacion America Airports S.A. CAAP. While Controladora Vuela currently sports a Zacks Rank #1 (Strong Buy), Corporacion America carries a Zacks Rank #2 (Buy). You can see the complete list of today’s Zacks #1 Rank stocks here.Shares of Controladora Vuela and Corporacion America Airports have rallied more than 100% each in a year. Breakout Biotech Stocks with Triple-Digit Profit Potential The biotech sector is projected to surge beyond $2.4 trillion by 2028 as scientists develop treatments for thousands of diseases. They’re also finding ways to edit the human genome to literally erase our vulnerability to these diseases. Zacks has just released Century of Biology: 7 Biotech Stocks to Buy Right Now to help investors profit from 7 stocks poised for outperformance. Recommendations from previous editions of this report have produced gains of +205%, +258% and +477%. The stocks in this report could perform even better.See these 7 breakthrough stocks now>>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 Southwest Airlines Co. (LUV): Free Stock Analysis Report American Airlines Group Inc. (AAL): Free Stock Analysis Report Controladora Vuela Compania de Aviacion, S.A.B. de C.V. (VLRS): Free Stock Analysis Report Corporacion America Airports S.A. (CAAP): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research