AirHint found the following cheapest return flights from Rockford (RFD) to Nashville (BNA) in August 2025 (see full year).

Return flights

17 Aug - 28 Aug	Allegiant Air	direct
31 Aug - 19 Sep	Allegiant Air	direct
21 Aug - 24 Aug	Allegiant Air	direct
14 Aug - 28 Aug	Allegiant Air	direct
01 Aug - 03 Aug	Allegiant Air
22 Aug - 24 Aug	Allegiant Air
15 Aug - 17 Aug	Allegiant Air
08 Aug - 10 Aug	Allegiant Air
29 Aug - 31 Aug	Allegiant Air
08 Aug - 11 Aug	Allegiant Air

Also check the deals for one-way flights from Rockford to Nashville in August.

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 Rockford to Nashville in August from $81

Return flights