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

Return flights

16 Dec - 23 Dec	Air Canada
16 Dec - 22 Dec	Aer Lingus
20 Dec - 27 Dec	Frontier Airlines
17 Dec - 24 Dec	Frontier Airlines
18 Dec - 25 Dec	Allegiant Air
21 Dec - 28 Dec	Allegiant Air
22 Dec - 29 Dec	Air France
19 Dec - 26 Dec	Air Canada

Also check the deals for one-way flights from Washington to Salzburg 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 Salzburg in December from 1024€

Return flights