AirHint found the following cheapest return flights from Atlanta (ATL) to Lisbon (LIS) in April 2026 (see full year).

Return flights

14 Apr - 21 Apr	Air Canada
15 Apr - 22 Apr	Air Canada
08 Apr - 15 Apr	Air Canada
22 Apr - 29 Apr	Air Canada
23 Apr - 30 Apr	Scandinavian Airlines
18 Apr - 25 Apr	Scandinavian Airlines
13 Apr - 20 Apr	Air Canada
16 Apr - 23 Apr	Scandinavian Airlines
09 Apr - 16 Apr	Scandinavian Airlines
19 Apr - 26 Apr	Lufthansa

Also check the deals for one-way flights from Atlanta to Lisbon in April.

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 Atlanta to Lisbon in April from 479€

Return flights