Travelers in Belgium have some good option to fly directly from Brussels to New York on board of Delta Air Lines and Air France / KLM. (Members of SkyTeam). Non-stop flights on this route are now starting at €342 for a round trip incl. all taxes and 23kg checked bag. Note that this is kind of a flash sale as it seems that offer is valid only till tomorrow. Need an option to New York, one of the most demanding destinations, also at the beginning of summer this is great opportunity..
If interested in this Brussels Airlines promotion you will find the cheapest flights between 29th of October 2017 and 30th of March 2018. Except blackout period around Christmas Holidays. Based on latest date of your inbound flight from America. Seems that this is kind of a flash sale and based on Brussels Airlines conditions of this promo sale you have to make your booking only till 2nd of October 2017.
You can easily compare all available travel options here (SkyTeam). Seems that to book the cheapest flights to New York you need to look for flights departing and returning on Tuesday, Wednesday or Thursday. Below we are also adding few booking samples.
Booking sample of these cheap non-stop flights from Brussels to New York from €342! In this case you would depart from Belgium to USA on 14th of November. Your return flight from North America back to Europe would be on 28th of November 2017.