AirHint found the following cheapest return flights from Washington (IAD) to Vienna (VIE) in December 2025 (see full year).

Return flights

05 Dec - 14 Dec	TAP
14 Dec - 21 Dec	TAP
28 Dec - 17 Jan	TAP
15 Dec - 10 Jan	TAP
16 Dec - 16 Jan	TAP
16 Dec - 18 Jan	TAP
08 Dec - 17 Dec	Austrian Airlines	direct
25 Dec - 18 Jan	Scandinavian Airlines
27 Dec - 17 Jan	Lufthansa
25 Dec - 20 Jan	British Airways
26 Dec - 21 Jan	British Airways
25 Dec - 19 Jan	British Airways
28 Dec - 17 Jan	Austrian Airlines	direct
05 Dec - 14 Dec	Austrian Airlines	direct
16 Dec - 24 Dec	Austrian Airlines	direct
15 Dec - 29 Dec	Frontier Airlines
14 Dec - 21 Dec	United	direct
23 Dec - 30 Dec	Austrian Airlines
23 Dec - 30 Dec	United	direct
20 Dec - 28 Dec	Icelandair

Also check the deals for one-way flights from Washington to Vienna 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 Washington to Vienna in December from 425€

Return flights