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

Return flights

31 Dec - 16 Jan	TAP
30 Dec - 15 Jan	Icelandair
07 Dec - 10 Dec	TAP
08 Dec - 17 Dec	Aer Lingus
29 Dec - 07 Jan	SWISS
27 Dec - 10 Jan	Frontier Airlines
28 Dec - 07 Jan	TAP
16 Dec - 24 Dec	Frontier Airlines
31 Dec - 05 Jan	Turkish Airlines
16 Dec - 23 Dec	Frontier Airlines
31 Dec - 16 Jan	Austrian Airlines	direct
31 Dec - 04 Jan	TAP
14 Dec - 04 Jan	Frontier Airlines
26 Dec - 04 Jan	TAP
18 Dec - 24 Dec	Frontier Airlines
21 Dec - 28 Dec	Allegiant Air
10 Dec - 17 Dec	Austrian Airlines	direct
25 Dec - 29 Dec	United	direct
08 Dec - 17 Dec	Austrian Airlines	direct
07 Dec - 10 Dec	Austrian Airlines	direct

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.

Book a cheap hotel in Vienna

Cheap car rent in Vienna

Cheapest return flights from Washington to Vienna in December from 543€

Return flights