Cheapest return flights from Newark to Lisbon in September from 308€

AirHint found the following cheapest return flights from Newark (EWR) to Lisbon (LIS) in September 2025 (see full year).

Return flights

18 Sep - 23 Sep SWISS
22 Sep - 29 Sep Air Canada
20 Sep - 25 Sep Icelandair
21 Sep - 26 Sep Air Canada
19 Sep - 22 Sep SWISS
19 Sep - 05 Oct SWISS
30 Sep - 30 Oct United
08 Sep - 15 Sep Air Canada
22 Sep - 21 Oct United
14 Sep - 19 Sep Aer Lingus
02 Sep - 09 Sep TAP direct
10 Sep - 16 Sep Air Canada
04 Sep - 16 Sep Air Canada
27 Sep - 03 Oct SWISS
24 Sep - 01 Oct SWISS
23 Sep - 09 Oct SWISS
20 Sep - 10 Oct SWISS
19 Sep - 10 Oct SWISS
21 Sep - 10 Oct SWISS
24 Sep - 08 Oct SWISS

Also check the deals for one-way flights from Newark to Lisbon in September.

Skyscanner

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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