I saw on one of the blogs that if you use the German expedia site and book a 1-night hotel, you can get the total cost to drop to 930 Euro. Here's an example:
https://www.expedia.de/Details?actio...b-3873879fa16a
TXL-HEL-NYC RT on Finnair + BA (can also get Finnair straight for ~940 Euro).
I couldn't repro on the US expedia page. If you open in incognito the price shows up as 887 Euro lol.. EEA is EWR, but you can also pick JFK return. This is almost the same price as those LX/LH "deal" fares for around 800 Euro a couple months ago.