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

Return flights

03 Sep - 11 Sep	Icelandair
03 Sep - 10 Sep	jetBlue
05 Sep - 12 Sep	jetBlue
04 Sep - 12 Sep	jetBlue
08 Sep - 16 Sep	jetBlue
08 Sep - 15 Sep	jetBlue
04 Sep - 11 Sep	Spirit Airlines
06 Sep - 14 Sep	jetBlue
06 Sep - 13 Sep	jetBlue
05 Sep - 13 Sep	jetBlue
24 Sep - 01 Oct	Spirit Airlines
29 Sep - 06 Oct	United
30 Sep - 07 Oct	United
26 Sep - 03 Oct	United
25 Sep - 02 Oct	United
28 Sep - 05 Oct	United
27 Sep - 05 Oct	KLM

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

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Cheapest return flights from Nashville to Lisbon in September from 493€

Return flights