Originally Posted by
MSPeconomist
KE sets blackout dates that are specific to regions/routes/directions. DL then takes those dates and says that if even a single flight on KE is blacked out by KE for that date, then every KE flight is blacked out that day for awards and upgrades using DL miles.
Originally Posted by
HongKonger
Do we know why that is? Does DL want to stick it to KE or is their IT/CS insufficient to keep track of availability on different routes/dates?
IMO this is because there is just ONE set of fare rules for international award travel, covering all routes and dates.