In the past week, European carrier Ryanair Holdings RYAAY.unveiled its schedule for next year’s summer. On a more somber note, RYAAY’s CEO Michael O'Leary reportedly warned that following the renewed surge in COVID-19 cases in Europe, Christmas travel and early bookings for summer are likely to be disrupted.Alaska Air Group’s ALK subsidiary Alaska Airlines launched nonstop services to Belize City, Belize from Seattle and Los Angeles. With air-travel demand picking up in the United States, management at Delta Air Lines DAL stated that it expects to transport up to 5.6 million passengers in the Thanksgiving period this year. Additionally, American Airlines AAL and JetBlue Airways JBLU are seeking the dismissal of the lawsuit filed against their alliance.Read the last Airline Roundup hereRecap of the Latest Top Stories1. As part of its summer 2022 schedule, Ryanair is adding 24 new routes to popular European destinations. RYAAY will operate more than 500 services from the UK airports next summer. Management said that adding 65 B737-8200 ‘Gamechanger’ aircraft to its fleet by next summer will make the schedule “the most sustainable and environmentally friendly”. This is because the B737-8200 ‘Gamechanger’ aircraft offers 4% more seats, 16% less fuel and a 40% reduction in noise emissions. As part of its sustainable operations, RYAAY launched electric handling at 11 major European airports. The 24 new routes include Birmingham to Zadar, Bournemouth to Bergerac and Zadar, London (Luton Airport) to Burgas, Catania and Lublin, London (Stansted Airport) to Menorca and Madeira, Manchester to Vienna and Madeira as well as Newcastle to Ibiza, Zadar, Chania and Riga.2. With the winter holiday season round the corner, Alaska Airlines began a seasonal service running through May 22, 2022, to Belize city from Seattle (Seattle-Tacoma International Airport) and a year-round service from Los Angeles (Los Angeles International Airport) on Nov 19. From Los Angeles, Alaska Airlines is operating flights four times per week to Belize City while from Seattle, it is running twice-weekly flights. The new flights to Belize add to the airline’s existing services to Canada, Mexico and Costa Rica from its West Coast hubs.3. Delta, currently carrying a Zacks Rank #4 (Sell), expects to transport up to 5.6 million passengers in the Thanksgiving period. The projection implies a significant increase from the actual number of passengers (2.2 million) transported by DAL over the Thanksgiving period last year. With friends, families and relatives expected to connect during this phase, leisure travel is expected to get a boost.To boost operations during the busy period, Delta made additional hirings in customer service and reservations. DAL also boosted its strength regarding flight attendants to meet the anticipated increase in the number of flights in operation.You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.4. Per a CNBC report, American Airlines and JetBlue asked a U.S. judge to dismiss the lawsuit filed in September on antitrust grounds by the Justice Department (DOJ) and officials in six states. AAL and JBLU are asking for the lawsuit to be dismissed as the DOJ failed to justify the claim that the alliance, which is already in operation, hurt competition or escalated prices.PerformanceThe following table shows the price movement of the major airline players over the past week and during the last six months.Image Source: Zacks Investment ResearchThe table above shows that most airline stocks have traded in the red over the past week, causing the NYSE ARCA Airline Index to decrease 2.3% to $85.26. Over the past six months, the NYSE ARCA Airline Index has depreciated 19.5%.What's Next in the Airline Space?With air-travel demand picking up in the United States, expansion-related updates can be expected from U.S.-based carriers. Zacks’ Top Picks to Cash in on Artificial Intelligence This world-changing technology is projected to generate $100S of billions by 2025. From self-driving cars to consumer data analysis, people are relying on machines more than we ever have before. Now is the time to capitalize on the 4th Industrial Revolution. Zacks’ urgent special report reveals 6 AI picks investors need to know about today.See 6 Artificial Intelligence Stocks With Extreme Upside Potential>>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 Ryanair Holdings PLC (RYAAY): Free Stock Analysis Report Delta Air Lines, Inc. (DAL): Free Stock Analysis Report JetBlue Airways Corporation (JBLU): Free Stock Analysis Report American Airlines Group Inc. (AAL): Free Stock Analysis Report Alaska Air Group, Inc. (ALK): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research