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 Debrecen - Dublin: Lufthansa (LH).
The cheapest flights are on the route Debrecen Intl Airport (DEB) - Dublin Airport (DUB).
There is no direct flight on the route Debrecenből Dublinba
Il volo con scalo più breve dura 23h 25min.