Fare is still around -- OKW8F7P5. Finding dates with O bucket availability in both directions is the difficult part. Seeing availability for Apr 23rd outbound and May 9th returns. Nothing particularly "crazy" or surprising here. Airlines change up bucket availability on flights all the time. Seeing a different price for same flights doesn't mean the "fares" have changed, it usually just the airlines altering fare bucket availability on the flights. Prices may return should they open up the lower buckets on the flights again (in this case, the 'O' bucket).