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

Return flights

06 Sep - 13 Sep	American Airlines
09 Sep - 16 Sep	American Airlines
10 Sep - 15 Sep	United
10 Sep - 13 Sep	United
30 Sep - 07 Oct	United
29 Sep - 04 Oct	Delta
17 Sep - 21 Sep	United
30 Sep - 05 Oct	United
03 Sep - 07 Sep	United
24 Sep - 28 Sep	United
11 Sep - 14 Sep	Spirit Airlines

Also check the deals for one-way flights from Newark to Belize City 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.

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Cheapest return flights from Newark to Belize City in September from 294€

Return flights