The 160K roundtrip JFK-BCN D1 awards have a 90 day advance purchase requirement. OP would have to redeem fairly soon to qualify for flights in November due to the 90-day AP. If you wait until early September to redeem, only dates in December and later would be valid due to the AP requirements. There are also Day/Time rules for these awards -- OUTBOUND - PERMITTED SUN THROUGH WED ON EACH TRANSATLANTIC SECTOR. INBOUND - PERMITTED TUE THROUGH FRI ON EACH TRANSATLANTIC SECTOR.