AirHint found the following cheapest return flights from Austin (AUS) to Frankfurt (FRA) in December 2025 (see full year).

Return flights

02 Dec - 09 Dec	Lufthansa	direct
11 Dec - 18 Dec	Lufthansa	direct
16 Dec - 10 Jan	Scandinavian Airlines
13 Dec - 20 Dec	Spirit Airlines
08 Dec - 15 Dec	Lufthansa
23 Dec - 30 Dec	Lufthansa
21 Dec - 30 Dec	Spirit Airlines
14 Dec - 28 Dec	Aer Lingus
14 Dec - 21 Dec	Lufthansa
23 Dec - 02 Jan	Air Canada
23 Dec - 01 Jan	Air Canada
24 Dec - 02 Jan	KLM
17 Dec - 24 Dec	Lufthansa
25 Dec - 04 Jan	Spirit Airlines
25 Dec - 04 Jan	Lufthansa	direct
23 Dec - 01 Jan	Lufthansa	direct
28 Dec - 04 Jan	Lufthansa	direct
19 Dec - 10 Jan	British Airways
21 Dec - 03 Jan	Air France
21 Dec - 30 Dec	Lufthansa	direct

Also check the deals for one-way flights from Austin to Frankfurt 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 Austin to Frankfurt in December from $897

Return flights