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

Return flights

17 Dec - 19 Jan	easyJet
15 Dec - 17 Dec	Ryanair
16 Dec - 22 Dec	easyJet
12 Dec - 19 Dec	easyJet
11 Dec - 26 Jan	easyJet
22 Dec - 26 Dec	Ryanair
29 Dec - 19 Jan	Ryanair
09 Dec - 10 Dec	Air Serbia
30 Dec - 08 Jan	Ryanair
17 Dec - 25 Dec	easyJet
11 Dec - 16 Dec	easyJet
15 Dec - 15 Jan	easyJet
10 Dec - 19 Dec	Lufthansa	direct
10 Dec - 20 Dec	Lufthansa	direct
16 Dec - 22 Dec	Lufthansa	direct
15 Dec - 07 Jan	Ryanair
17 Dec - 11 Jan	easyJet
17 Dec - 13 Jan	easyJet
22 Dec - 12 Jan	Ryanair
31 Dec - 14 Jan	Air Serbia	direct

Also check the deals for one-way flights from Frankfurt to Belgrade 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 Frankfurt to Belgrade in December from 123€

Return flights