Do you wish to reschedule or Change your Avianca flight? Under many conditions like change in plans, urgencies, postponement of travel plans, sickness, etc. travellers usually need to change their flight. Avianca Change Flight procedure is relatively easy and hassle-free. All kinds of changes can be made free of cost if done within the time span of 24 hours from the time of booking. However, if the fare price changes, the traveller will have to pay the excess amount to change the original booking. In some cases, you might be charged a minor sum for making changes depending upon the service class you have reserved.