Star Alliance partners United and Lufthansa / Swiss Air Lines / Air Canada offer very attractive deal from France to USA. Return flights from Paris to New York are now available already for €315 and non-stop round-trip flights already for €375. This fare is already including all taxes and fees and checked bag up to 23kg. The cheapest option requires long-layover in Canada on your return flight which is good option to explore another city on your journey just make sure you choose your preferred routing..
United / Lufthansa promotion is running till 1st of March 2017. Permitted for flights departing from Europe to USA till 6th of April. then 18th of April till 18th of May or 30th of October till 14th of December 2017. Max stay 3 months. Non-stop flights are based on direct booking with carrier requiring manual search. You can refer to below travel samples if interested in this option.
Paris – New York for €375 (Non-stop flight, travel sample 10. – 26.3.)
27.2. – 13.3.
10. – 26.3.
15. – 22.3.
24. – 30.4.
6. – 13.11.
21.11. – 6.12.
Do not forget you need US visa or ESTA certification before you depart to America. To book your accommodation in New York you can use Booking.com.
Booking sample of Star Alliance cheap flights from Paris to New York from €315 (non-stop for €375). In this case you would be departing from France to New York on 11th of March. Your return flight from America back to Europe would be then on 26th of March 2017.
Booking sample of non-stop flights from Paris to New York for €375. Based on direct booking with Lufthansa. You can book this deal slightly cheaper via various online travel agents.