American Airlines has opened up a significant amount of business class award and upgrade space to Europe in 2016 and early 2017.
Specifically there is significant award space to Paris with decent space to London, Frankfurt, Milan and Zurich depending on the route. To find the space it is usually best to search the over water segment first and then figure out domestic connecting flights. You can search for flights here.
For ideas of dates, routes and space available, see the following posts:
- Amazing Business Class Award Availability USA-London! (Upgrades Available Too)
- HURRY: American Airlines Europe Business Class Awards and Upgrades Wide Open