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

Return flights

03 Dec - 08 Dec	Icelandair
05 Dec - 12 Dec	Icelandair
10 Dec - 17 Dec	British Airways	direct
03 Dec - 08 Dec	American Airlines	direct
22 Dec - 29 Dec	jetBlue
15 Dec - 22 Dec	United
15 Dec - 22 Dec	British Airways	direct
23 Dec - 29 Dec	jetBlue
14 Dec - 31 Jan	Delta
22 Dec - 02 Jan	jetBlue
22 Dec - 27 Dec	jetBlue
30 Dec - 06 Jan	British Airways
31 Dec - 03 Jan	jetBlue
22 Dec - 26 Dec	Icelandair
20 Dec - 04 Jan	jetBlue
17 Dec - 03 Jan	jetBlue
25 Dec - 01 Jan	British Airways	direct
17 Dec - 03 Jan	British Airways	direct
22 Dec - 02 Jan	Finnair	direct
20 Dec - 04 Jan	Finnair	direct

Also check the deals for one-way flights from Raleigh-durham to London 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 London in December from $562

Return flights