AirHint found the following cheapest return flights from Nashville (BNA) to London (LGW) in December 2025 (see full year).

Return flights

07 Dec - 14 Dec	Aer Lingus
01 Dec - 10 Dec	Icelandair
01 Dec - 08 Dec	Icelandair
10 Dec - 17 Dec	Air Canada
25 Dec - 31 Dec	Icelandair
23 Dec - 02 Jan	Icelandair
22 Dec - 02 Jan	Icelandair
26 Dec - 04 Jan	jetBlue
28 Dec - 02 Jan	Icelandair
27 Dec - 03 Jan	Icelandair
23 Dec - 01 Jan	Icelandair
22 Dec - 01 Jan	Icelandair
24 Dec - 01 Jan	Turkish Airlines

Also check the deals for one-way flights from Nashville 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 Nashville to London in December from $686

Return flights