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

Return flights

30 Oct - 04 Nov	jetBlue
22 Oct - 03 Nov	jetBlue
01 Oct - 18 Oct	jetBlue
23 Oct - 26 Oct	jetBlue
23 Oct - 29 Oct	TAP
18 Oct - 25 Oct	jetBlue
02 Oct - 18 Oct	jetBlue
17 Oct - 26 Oct	jetBlue
10 Oct - 24 Oct	jetBlue
26 Oct - 31 Oct	TAP
14 Oct - 18 Oct	jetBlue
24 Oct - 31 Oct	TAP

Also check the deals for one-way flights from London to Cartagena in October.

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 October from 610€

Return flights