AirHint found the following cheapest return flights from London (LHR) to Cartagena (CTG) in December 2025 (see full year).

Return flights

01 Dec - 21 Dec	TAP
10 Dec - 31 Dec	Delta
08 Dec - 27 Dec	Delta
26 Dec - 09 Jan	TAP
10 Dec - 17 Dec	British Airways
27 Dec - 09 Jan	TAP
01 Dec - 14 Dec	Avianca
02 Dec - 07 Dec	Avianca
26 Dec - 04 Jan	TAP
26 Dec - 05 Jan	Air Canada
09 Dec - 07 Jan	Finnair
10 Dec - 10 Jan	Finnair
10 Dec - 05 Jan	Air Canada
15 Dec - 21 Dec	American Airlines
15 Dec - 31 Dec	American Airlines
17 Dec - 22 Dec	British Airways
17 Dec - 27 Dec	British Airways
10 Dec - 04 Jan	Scandinavian Airlines
23 Dec - 04 Jan	TAP
17 Dec - 01 Jan	Vueling Airlines

Also check the deals for one-way flights from London to Cartagena 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 London to Cartagena in December from 890€

Return flights