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

Return flights

11 Dec - 14 Dec	Spirit Airlines
29 Dec - 24 Jan	Spirit Airlines
26 Dec - 08 Jan	Spirit Airlines
09 Dec - 26 Dec	Spirit Airlines
25 Dec - 05 Jan	Spirit Airlines
25 Dec - 01 Jan	Spirit Airlines
20 Dec - 28 Dec	Allegiant Air
25 Dec - 04 Jan	Spirit Airlines
16 Dec - 23 Dec	Aer Lingus
16 Dec - 27 Dec	Aer Lingus

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 490€

Return flights