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 Singapore - Budapest: Air China (CA), Malaysia Airlines (MH), Turkish Airlines (TK).
The cheapest flights are on the route Changi (SIN) - Liszt Ferenc (BUD).
There is no direct flight on the route from Singapore to Budapest
Il volo con scalo più breve dura 22h 40min.