Select Your Seat: Once you have access to your reservation, you should see the seating map for your flight. The seating map will display the available seats on the aircraft. You can choose your preferred seat based on availability and your seating preferences.Confirm and Save: After selecting your seat avianca seat selection, the website will usually ask you to confirm your choice. Once you confirm your selection, the seat will be assigned to you, and your reservation will be updated.Receive Confirmation: After completing the seat selection process, you should receive a confirmation email with your updated itinerary, including the seat assignment.