Changing an Avianca Airlines flight is simple. To modify your booking, visit Avianca's official website and log into "My Trips" using your reservation details. Select the flight you want to change and choose a new date or destination, subject to availability. Fees may apply depending on your ticket type and the fare rules. Alternatively, you can contact Avianca Airlines customer service for assistance. Ensure you make changes well in advance to avoid last-minute hassles. Keywords: change Avianca flight, Avianca flight modification, Avianca customer service, Avianca ticket change policy, Avianca Airlines booking change. Always check updated policies for flexibility options.