For this month, there are some new mileage bargains from Luxembourg with Luxair:
All connections with ECO (15000 miles) or Business (25000miles).
It is bookable until the end of May, travel dates are from mid June to July.
The taxes are almost the same around 30€, except for Krakow and Oslo around 19€.
Furthermore you can book from Austria to Washington and New York in Business for 55.000 miles.
Austria to New York and Chicago in Premium Eco for 40.000 miles.
Travel dates are from mid August to September.