Wizz Air offers low cost flights from Hungary (Budapest) to Spain (Barcelona, El Prat airport).
Sample travel dates:
Budapest – Barcelona – Budapest.
How to book:
Go to Wizzair.com and choose the routing and dates from above.
Baggage during the trip:
One cabin bag per passenger with maximum dimensions of 42cm x 32cm x 25cm. To get the lowest rates you have to be a member of Wizz Discount Club (WDC).