United Airlines Holdings Inc UAL announced a significantly expanded May schedule as air-travel demand continues to improve. Anticipating an increase in summer travel demand, the airline plans to resume more than 20 domestic services and operate more than 100% of its 2019 schedule to Latin America. The carrier expects its overall schedule to be 52% in May 2021 compared with the 2019 levels. This is a significant improvement from May 2020 when the airline operated only 14% of its 2019 schedule.Per Ankit Gupta, vice president of United Airlines’ domestic network planning and scheduling, the airline has seen the “strongest flight bookings since the start of the pandemic” over the past few weeks.Domestic ExpansionUnited Airlines will begin services from Charleston, SC; Hilton Head, SC; Myrtle Beach, SC; Pensacola, FL. and Portland, ME to seven destinations, namely, Cleveland, OH; Cincinnati, OH; Columbus, OH; St. Louis, MO; Pittsburgh, PA; Milwaukee, WI and Indianapolis, IN, effective May 27. These services will be operational through Labor Day weekend.Additionally, the carrier will reinstate 20 popular domestic services in May. It will also introduce nonstop service between Houston, TX and Kalispell, MT; Washington, D.C. and Bozeman, MT; as well as Chicago, IL and Nantucket, MA. With these services, the airline expects its May schedule to be 58% of the 2019 levels.United Airlines Holdings Inc Price United Airlines Holdings Inc price | United Airlines Holdings Inc QuoteInternational ExpansionAnticipating increased demand for leisure travel, United Airlines will operate more flights to Mexico, the Caribbean, Central America and South America in May 2021 compared with 2019. Further, the airline will resume flights between Chicago, IL and Tokyo's Haneda airport in the same month. It will also increase service from Los Angeles to Sydney and Tokyo Narita. In the Atlantic region, the carrier plans to resume services connecting Newark, NJ with Milan and Rome, as well as Chicago with Amsterdam, Munich and Tel Aviv. United Airlines expects its international schedule in May to be 46% of the 2019 level.Zacks Rank & Key PicksUnited Airlines carries a Zacks Rank #4 (Sell).Some better-ranked stocks in the broader Transportation sector are ArcBest Corp. ARCB, Saia, Inc. SAIA and Navios Maritime Partners LP NMM. While Navios Maritime sports a Zacks Rank #1 (Strong Buy), ArcBest and Saia carry a Zacks Rank #2 (Buy). You can see the complete list of today’s Zacks #1 Rank stocks here.Shares of ArcBest, Saia and Navios Maritime have rallied more than 100%, 70% and 300% in the past six months, respectively.These Stocks Are Poised to Soar Past the PandemicThe COVID-19 outbreak has shifted consumer behavior dramatically, and a handful of high-tech companies have stepped up to keep America running. Right now, investors in these companies have a shot at serious profits. For example, Zoom jumped 108.5% in less than 4 months while most other stocks were sinking.Our research shows that 5 cutting-edge stocks could skyrocket from the exponential increase in demand for “stay at home” technologies. This could be one of the biggest buying opportunities of this decade, especially for those who get in early.See the 5 high-tech 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 United Airlines Holdings Inc (UAL): Get Free Report ArcBest Corporation (ARCB): Free Stock Analysis Report Saia, Inc. (SAIA): Free Stock Analysis Report Navios Maritime Partners LP (NMM): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research