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

Return flights

03 Dec - 10 Dec	British Airways
08 Dec - 15 Dec	British Airways
13 Dec - 20 Dec	British Airways
23 Dec - 17 Jan	Air France
18 Dec - 25 Dec	British Airways	direct
23 Dec - 17 Jan	Finnair	direct
23 Dec - 30 Dec	British Airways	direct
28 Dec - 04 Jan	British Airways	direct
26 Dec - 04 Jan	Delta
22 Dec - 31 Dec	British Airways
22 Dec - 31 Dec	Aer Lingus	direct

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 446€

Return flights