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

Return flights

01 Sep - 02 Sep	Spirit Airlines
01 Sep - 03 Sep	Spirit Airlines
27 Sep - 04 Oct	jetBlue
26 Sep - 03 Oct	United
01 Sep - 08 Sep	Spirit Airlines
01 Sep - 04 Sep	Spirit Airlines
17 Sep - 24 Sep	jetBlue
23 Sep - 30 Sep	jetBlue
24 Sep - 01 Oct	jetBlue
02 Sep - 09 Sep	Spirit Airlines
19 Sep - 26 Sep	United	direct
08 Sep - 15 Sep	Spirit Airlines
12 Sep - 19 Sep	United
27 Sep - 04 Oct	United	direct
28 Sep - 05 Oct	jetBlue
25 Sep - 02 Oct	jetBlue
29 Sep - 06 Oct	jetBlue
30 Sep - 07 Oct	jetBlue

Also check the deals for one-way flights from Newark to St. Thomas 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 St. Thomas

Cheap car rent in St. Thomas

Cheapest return flights from Newark to St. Thomas in September from $365

Return flights