AirHint found the following cheapest return flights from Boston (BOS) to Budapest (BUD) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec	Air Canada
31 Dec - 21 Jan	Air Canada
01 Dec - 08 Dec	Air Canada
01 Dec - 22 Dec	Air Canada
03 Dec - 12 Dec	Air Canada
09 Dec - 24 Dec	Air Canada
02 Dec - 17 Dec	Aer Lingus
02 Dec - 09 Dec	Aer Lingus
02 Dec - 16 Dec	Aer Lingus
02 Dec - 12 Dec	Aer Lingus
07 Dec - 17 Dec	Aer Lingus
30 Dec - 08 Jan	Air Canada
30 Dec - 21 Jan	Air Canada
31 Dec - 15 Jan	Air Canada
31 Dec - 09 Jan	Air Canada
30 Dec - 20 Jan	Air Canada
24 Dec - 14 Jan	Air Canada
24 Dec - 16 Jan	Air Canada
31 Dec - 06 Jan	Air Canada
31 Dec - 07 Jan	Air Canada

Also check the deals for one-way flights from Boston to Budapest in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Boston to Budapest in December from $363

Return flights