Can I change a seat reservation?

Single ticket

If you have reserved a seat and are traveling with a single ticket, you cannot change seats. If you want a different seat, you must buy a new ticket with a new seat reservation.

Period ticket

If you are travelling with a different departure than the one for which you originally reserved a seat, you can change the reservation as long as the journey has not started. Go in to your seat reservation in the Vy app and click "Cancel" under the relevant departure. Then you can reserve a seat on the departure you want to take.

If you are not going to travel at all, you can simply click "Cancel" under the relevant departure to free up the seat for someone else.