Key keywords: airline fuel price surge 2024, flight route cutbacks, airfare increase, jet fuel cost rise, global airline operation adjustment, passenger travel expense, aviation industry profit outlook Over the past three months, global crude oil prices have climbed 28% due to extended production cuts from major oil-producing nations and rising geopolitical tensions in key energy supply regions, driving jet fuel costs up by more than 35% compared to the end of 2023, according to data from the International Air Transport Association (IATA). For commercial airlines, fuel costs typically account for 30% to 40% of total operational expenses, making the ongoing surge an unprecedented financial pressure point for carriers across all regions. Major US carriers including Delta Air Lines, United Airlines, and American Airlines have all announced 8% to 12% cuts to their Q2 and Q3 flight schedules, primarily targeting low-load regional routes and underperforming long-haul international services that cannot be sustained at current fuel price levels. European low-cost carriers such as Ryanair and Wizz Air have gone a step further, cutting nearly 15% of their summer peak season routes across the Mediterranean, while full-service carriers like Lufthansa and Air France have raised base fares on all routes by an average of 18% since March. In the Asia-Pacific region, Singapore Airlines, Cathay Pacific, and China Southern Airlines have also adjusted their operation plans, cutting 7% to 10% of less popular cross-border routes and raising fares on high-demand travel routes to Southeast Asia, Japan, and South Korea by 20% to 40% for the upcoming summer travel peak. Airline representatives note that the cuts and fare hikes are necessary measures to avoid widespread operational losses, adding that they have prioritized maintaining service on high-demand core routes to minimize disruption for most passengers. IATA analysts predict that if jet fuel prices remain at current levels through the end of 2024, global aviation industry net profits will fall 42% below previous forecasts, with 12% of small and medium-sized carriers at risk of insolvency. Travel advisory groups are recommending that passengers book flights at least 6 to 8 weeks in advance for planned travel, opt for off-peak travel times to secure lower fares, and monitor airline schedule updates closely to avoid last-minute cancellations.