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

Return flights

13 Aug - 16 Aug	Spirit Airlines
09 Aug - 16 Aug	Spirit Airlines
06 Aug - 13 Aug	Spirit Airlines
08 Aug - 11 Aug	Spirit Airlines
09 Aug - 11 Aug	Spirit Airlines
01 Aug - 04 Aug	Spirit Airlines
06 Aug - 10 Aug	Spirit Airlines
01 Aug - 07 Aug	Spirit Airlines
02 Aug - 09 Aug	Frontier Airlines
01 Aug - 03 Aug	Spirit Airlines

Also check the deals for one-way flights from Chicago to Nassau 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 Chicago to Nassau in August from 436€

Return flights