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

Return flights

13 Aug - 18 Aug	Southwest Airlines	direct
07 Aug - 11 Aug	Southwest Airlines
04 Aug - 08 Aug	Spirit Airlines	direct
08 Aug - 22 Aug	Spirit Airlines
11 Aug - 22 Aug	Spirit Airlines
01 Aug - 04 Aug	United	direct
04 Aug - 22 Aug	Spirit Airlines
29 Aug - 02 Sep	United	direct
08 Aug - 18 Aug	Spirit Airlines
11 Aug - 18 Aug	Spirit Airlines
22 Aug - 24 Aug	Spirit Airlines

Also check the deals for one-way flights from Nashville to Chicago 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 Nashville to Chicago in August from $77

Return flights