We do not have enough data on this route to provide a reliable graph showing how many days before departure it is the best to book.
However, usually the closer it is to the departure, the more expensive the tickets are.
The most popular airlines on the route Valencia - Budapest: Germanwings (4U), Air France (AF), Eurowings (EW).
The cheapest flights you can book on the route Manises (VLC) - Liszt Ferenc (BUD).
There is no direct flight on the route from Valencia to Budapest
Il volo con scalo più breve dura 5h 0min.