Changing a flight date can involve costs that vary depending on the airline and ticket type. Most airlines charge a change fee, which can range from 50to50to200 USD, especially for non-refundable tickets. Budget airlines like Flybondi or Ryanair often have higher fees, while full-service carriers like Delta or KLM may offer more flexibility. Additionally, you may need to pay any fare difference if the new flight is more expensive. If you booked through Expedia, they may also charge a service fee for processing the change. To avoid fees, check if your ticket qualifies for free changes within 24 hours of booking or if the airline is offering waivers. For assistance, contact Expedia’s customer service at +54 115-219-4129