AirHint found the following cheapest return flights from Charlotte (CLT) to Lisbon (LIS) in August 2025 (see full year).

Return flights

19 Aug - 26 Aug	United
19 Aug - 02 Sep	United
19 Aug - 13 Sep	Air France
31 Aug - 06 Sep	Spirit Airlines
30 Aug - 12 Sep	Spirit Airlines
24 Aug - 31 Aug	United
28 Aug - 01 Sep	Spirit Airlines
28 Aug - 31 Aug	Spirit Airlines

Also check the deals for one-way flights from Charlotte to Lisbon 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 Charlotte to Lisbon in August from 640€

Return flights