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

Return flights

05 Dec - 14 Dec	TAP
10 Dec - 18 Dec	TAP
12 Dec - 31 Jan	Aer Lingus
28 Dec - 17 Jan	Iberia
15 Dec - 31 Jan	Aer Lingus
16 Dec - 31 Jan	Aer Lingus
15 Dec - 23 Dec	Scandinavian Airlines
05 Dec - 14 Dec	Austrian Airlines	direct
12 Dec - 20 Dec	Aer Lingus
26 Dec - 17 Jan	Icelandair
17 Dec - 23 Dec	Scandinavian Airlines
18 Dec - 11 Jan	Aer Lingus
17 Dec - 11 Jan	Icelandair
16 Dec - 25 Dec	Delta
21 Dec - 28 Dec	Aer Lingus
10 Dec - 03 Jan	United
11 Dec - 03 Jan	Air Canada
20 Dec - 27 Dec	Icelandair
13 Dec - 03 Jan	Iberia
19 Dec - 31 Dec	Aer Lingus

Also check the deals for one-way flights from Boston 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 Boston to Vienna in December from 426€

Return flights