AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Frankfurt (FRA) in December 2025 (see full year).

Return flights

01 Dec - 09 Dec	Icelandair
13 Dec - 10 Jan	Frontier Airlines
15 Dec - 10 Jan	Frontier Airlines
05 Dec - 08 Jan	Frontier Airlines
29 Dec - 09 Jan	Icelandair
06 Dec - 13 Dec	Icelandair
16 Dec - 10 Jan	Frontier Airlines
14 Dec - 19 Dec	Spirit Airlines
10 Dec - 17 Dec	Icelandair
15 Dec - 06 Jan	Frontier Airlines
22 Dec - 10 Jan	Frontier Airlines
12 Dec - 20 Dec	Frontier Airlines
23 Dec - 04 Jan	Spirit Airlines
15 Dec - 03 Jan	Frontier Airlines
22 Dec - 04 Jan	Frontier Airlines
16 Dec - 23 Dec	Lufthansa
18 Dec - 30 Dec	Frontier Airlines
12 Dec - 19 Dec	Icelandair
17 Dec - 27 Dec	Frontier Airlines
08 Dec - 15 Dec	Lufthansa	direct

Also check the deals for one-way flights from Raleigh-durham 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 Raleigh-durham to Frankfurt in December from $639

Return flights