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

Return flights

02 Dec - 09 Dec	Aer Lingus
08 Dec - 15 Dec	SWISS
05 Dec - 12 Dec	SWISS
11 Dec - 18 Dec	Lufthansa
17 Dec - 24 Dec	British Airways
16 Dec - 30 Dec	British Airways
29 Dec - 05 Jan	Brussels Airlines
14 Dec - 21 Dec	Iberia
23 Dec - 30 Dec	British Airways
06 Dec - 27 Dec	British Airways
13 Dec - 27 Dec	British Airways
19 Dec - 10 Jan	British Airways
18 Dec - 04 Jan	British Airways
19 Dec - 04 Jan	British Airways
18 Dec - 05 Jan	British Airways
19 Dec - 05 Jan	British Airways
20 Dec - 04 Jan	British Airways

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 345€

Return flights