If one has the Avianca Airlines tickets but due to some reason one cannot board their flights of this airline then in this case one can fill in a deferment form so that their booking of this airline will be opened. You just need to pay the charges to change the dates of the flights and this also depends on what type of ticket one has purchased. If you miss your flight from this airline then it will lose the entire value of your ticket if it is a non-refundable ticket.
If one misses the flight of this airline then he can fill a postponement form. But if the airline Avianca cancels the flights of this airline then it will give you the option to board the next flight or travel from the other mode of transport that the airline offers you or one can cancel your flight and you can request a refund if you do not like it this flight.
If one misses his flight from this airline then it is important that one should first cancel his flight from this airline from the online medium and then fill out a refund form which one can access after canceling his flight from this airline. So you can refund the tax amount of the unused tickets.
If due to some problem one misses his flight from this airline and also does not cancel the flights of this airline then he cannot request refund from this airline and cannot receive any refund from this airline also the tax value of the unused ticket.
If you miss your flight from this airline then you must follow the no-fly policy then you can read this no-fly policy later.
From the information above you can obtain information about what happens if I miss my Avianca flight and know for the means that one can obtain when you miss your flight from this airline.