<h1>Delhi Airport UDF Hike: International Passengers to Pay More from April 16; AERA Approves 140% Increase</h1> International passengers flying from Delhi airport will face higher User Development Fees (UDF) starting April 16, as approved by the Airports Economic Regulatory Authority (AERA). The UDF for international economy class passengers will increase to Rs 650 for departures and Rs 275 for arrivals, while business class passengers will pay Rs 810 and Rs 345, respectively. AERA rejected a proposed 730% increase in airport charges, opting for a 140% rise instead, to support capital expenditures and maintain service quality. Domestic UDF remains unchanged at Rs 129, and landing charges vary based on aircraft type and flight segment.