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

Return flights

03 Dec - 09 Jan	Icelandair
08 Dec - 13 Dec	Spirit Airlines
08 Dec - 15 Dec	Spirit Airlines
09 Dec - 24 Jan	Spirit Airlines
08 Dec - 16 Dec	Spirit Airlines
07 Dec - 13 Dec	Spirit Airlines
14 Dec - 31 Jan	Icelandair
14 Dec - 30 Jan	Icelandair
27 Dec - 10 Jan	Icelandair
10 Dec - 17 Dec	Icelandair
17 Dec - 09 Jan	Spirit Airlines
12 Dec - 04 Jan	Frontier Airlines
15 Dec - 22 Dec	Icelandair
16 Dec - 05 Jan	Spirit Airlines
26 Dec - 04 Jan	Breeze Airways
15 Dec - 20 Dec	Icelandair
22 Dec - 28 Dec	Icelandair
20 Dec - 30 Dec	Icelandair

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 433€

Return flights