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

Return flights

13 Dec - 15 Dec	jetBlue	direct
12 Dec - 14 Dec	Delta	direct
05 Dec - 08 Dec	Southwest Airlines	direct
15 Dec - 06 Jan	Delta	direct
05 Dec - 12 Dec	Delta	direct
31 Dec - 01 Jan	Southwest Airlines	direct
30 Dec - 02 Jan	Southwest Airlines
30 Dec - 04 Jan	Southwest Airlines	direct
01 Dec - 21 Dec	Spirit Airlines
26 Dec - 28 Dec	Southwest Airlines
26 Dec - 02 Jan	Delta	direct
26 Dec - 28 Dec	Delta	direct

Also check the deals for one-way flights from Boston to Nashville 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 Boston to Nashville in December from $136

Return flights