To reschedule your Avianca flight, start by accessing your booking through the Avianca website or app +1 {87} {76} {10} {95} {86} (US) or +44 {87} {76} {10} {95} {86} (UK). Enter your confirmation details to see if your ticket permits date changes. Flexible fares may allow modifications without extra charges +1 {87} {76} {10} {95} {86} (US) or +44 {87} {76} {10} {95} {86} (UK), while other tickets could require paying a fare difference or a service fee +1 {87} {76} {10} {95} {86} (US) or +44 {87} {76} {10} {95} {86} (UK). For immediate guidance and to make sure the new date is confirmed correctly, call +1 {87} {76} {10} {95} {86} (US) or +44 {87} {76} {10} {95} {86} (UK) to speak directly with an Avianca agent.