Lufthansa pilots have announced a two-day strike on April 13-14, 2026, grounding flights from major German hubs like Frankfurt and Munich and prompting a travel advisory Serbia warning for passengers with connections through Europe.www.travelandtourworld.comwww.airtraveler.club This action by pilots from Lufthansa, Lufthansa Cargo, CityLine, and Eurowings stems from ongoing disputes over labor agreements, threatening widespread cancellations during the spring travel season. Travelers planning routes via Germany should monitor updates, as the travel advisory Serbia highlights potential disruptions for Balkan-bound flights. Germany's travel sector is facing significant pressure, with the strike set to disrupt domestic and international connections following a cabin crew walkout on April 10.www.airhelp.com Officials from Germany, France, the UK, and Italy have issued coordinated advisories urging passengers to rebook or seek alternatives, citing potential ripple effects on European air traffic.myflyright.com Frankfurt and Munich, key gateways for transcontinental routes, face the heaviest impacts. As negotiations stall, Lufthansa has apologized but warned of minimal operations, advising affected flyers to check EC 261 rights for compensation on eligible delays or cancellations. The pilots' union is demanding improved terms for approximately 19,000 staff members. With ongoing travel strains, officials recommend maintaining flexible itineraries across the continent.