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

Return flights

02 Dec - 17 Dec	Lufthansa
05 Dec - 17 Dec	Air Canada
24 Dec - 18 Jan	British Airways
13 Dec - 13 Jan	British Airways
13 Dec - 12 Jan	British Airways
14 Dec - 21 Dec	Turkish Airlines
13 Dec - 05 Jan	Hawaiian Airlines
22 Dec - 05 Jan	Hawaiian Airlines
30 Dec - 02 Jan	WestJet
24 Dec - 30 Dec	Delta
22 Dec - 29 Dec	Aer Lingus
19 Dec - 29 Dec	Alaska Airlines
22 Dec - 28 Dec	British Airways
23 Dec - 30 Dec	Lufthansa
21 Dec - 29 Dec	Lufthansa
22 Dec - 30 Dec	Turkish Airlines
19 Dec - 02 Jan	WestJet

Also check the deals for one-way flights from Seattle 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.

Book a cheap hotel in Budapest

Cheap car rent in Budapest

Cheapest return flights from Seattle to Budapest in December from $515

Return flights