I booked a one way a few days ago - LAS to JFK in first for 45,000 miles. Fare was $684 I think. Schedule change Saturday hit yesterday and they got rid of the flight I had just booked earlier in the week. They put me on a later flight which I actually prefer which is inexplicably pricing at $1,680 and 145,000 miles as of today. This is the first time schedule changes actually worked in my favor.

They also changed my outbound from JFK - LAS to lie-flat seats but not sure that will hold. We had several flights to Vegas this year where the planes started out with lie-flat seats and all went to 737s. So i'm not banking on that one.