AirHint found the following cheapest return flights from Prague (PRG) to Lisbon (LIS) in December 2025 (see full year).

Return flights

17 Dec - 13 Jan	easyJet
11 Dec - 15 Jan	easyJet	direct
11 Dec - 08 Jan	easyJet	direct
11 Dec - 17 Jan	easyJet	direct
17 Dec - 10 Jan	easyJet
11 Dec - 13 Jan	easyJet	direct
17 Dec - 06 Jan	easyJet
03 Dec - 06 Dec	easyJet
11 Dec - 20 Jan	easyJet	direct
03 Dec - 08 Dec	easyJet
18 Dec - 06 Jan	easyJet
17 Dec - 22 Dec	easyJet
11 Dec - 06 Jan	easyJet	direct
11 Dec - 16 Dec	easyJet
15 Dec - 17 Dec	Ryanair
15 Dec - 18 Dec	Ryanair
05 Dec - 11 Dec	Ryanair
18 Dec - 23 Dec	easyJet
03 Dec - 11 Dec	easyJet
04 Dec - 13 Dec	Lufthansa

Also check the deals for one-way flights from Prague to Lisbon 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 Prague to Lisbon in December from 108€

Return flights