Originally Posted by Metanoia

EK changes availability all the time - but just a couple data points: from what I've observed on a given day's flight, if F availability changes, such as even one revenue seat is sold, the award availability can be removed as well. Also, I do know that during August EK does tend to black out awards for entire weeks for European destinations. I'd just keep at it and see if it re-opens.

Or fly AA