Wizz Air offers a cheap flights from Budapest to Stockholm for only 21 euros both ways. For that price you can find lots of options in autumn.
Only hand luggage is included. Other service will require extra payments.
Also keep in mind that flight to Stockholm lands in remote airport in Skavsta which may require extra money for transfer to Stockholm.
Where to book low cost flights?
If you are looking for cheap flights you can use of searching widget on the right hand side. But if you are into real low cost deals, check Kiwi.com
Where to book cheap hotels?
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