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

Return flights

08 Dec - 15 Dec	Scandinavian Airlines
05 Dec - 10 Dec	Scandinavian Airlines
28 Dec - 12 Jan	Lufthansa
08 Dec - 14 Dec	Icelandair
07 Dec - 14 Dec	Scandinavian Airlines
01 Dec - 16 Dec	Lufthansa
08 Dec - 17 Dec	LOT
02 Dec - 09 Dec	Lufthansa
03 Dec - 10 Dec	Lufthansa
10 Dec - 17 Dec	Lufthansa
04 Dec - 18 Dec	Icelandair
27 Dec - 17 Jan	Air Serbia
12 Dec - 12 Jan	Frontier Airlines
12 Dec - 24 Jan	British Airways
26 Dec - 17 Jan	Frontier Airlines
11 Dec - 10 Jan	Frontier Airlines
31 Dec - 07 Jan	Lufthansa
22 Dec - 17 Jan	Aer Lingus
30 Dec - 06 Jan	Lufthansa
22 Dec - 07 Jan	Aer Lingus

Also check the deals for one-way flights from Chicago 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 Chicago to Budapest in December from $440

Return flights