Cheapest return EWR–LIS flights, September

AirHint found the following cheapest return flights from Newark (EWR) to Lisbon (LIS) in September 2026 (see full year).

Return flights

29 Sep - 07 Oct Icelandair
19 Sep - 27 Sep Air Canada
16 Sep - 24 Sep Air Canada
24 Sep - 29 Sep Icelandair
05 Sep - 13 Sep Air Canada
21 Sep - 30 Sep Iberia
03 Sep - 10 Sep Turkish Airlines
02 Sep - 09 Sep Air Canada
20 Sep - 29 Sep Turkish Airlines
29 Sep - 07 Oct TAP direct
09 Sep - 16 Sep Iberia
08 Sep - 15 Sep Iberia
16 Sep - 05 Oct Turkish Airlines
21 Sep - 04 Oct Iberia
16 Sep - 05 Oct TAP direct
25 Sep - 04 Oct Delta
26 Sep - 03 Oct Delta
08 Sep - 13 Oct Air Canada
26 Sep - 03 Oct TAP direct
08 Sep - 13 Oct Brussels Airlines direct

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

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