Travellers have a fantastic opportunity to experience a more opulent and pleasant journey thanks to Finnair's last-minute upgrades without having to pay the entire cost of a Premium Economy or Business Class ticket. Subject to availability, these upgrades are offered at check-in at the gate. Finnair will provide available seats in the higher travel class to qualified customers for an extra price if there are any unfilled seats in that class. Depending on the route and distance, this fee varies, although it is often far less expensive than the price of a full-priced ticket. https://www.travomojo.com/upgrade-class/how-to-upgrade-finnair-flight-seat/