Originally Posted by
Mackieman
You should be eligible for EUA on the domestic portion of CO 5. And you should automatically be placed on the upgrade standby list by virtue of your OnePass number in the PNR.
Should, yes, but I believe it is an issue with the through-flight number not splitting correctly at IAH. Booking it as LHR-IAH/IAH-MSY, even if on the same CO5 flight number, rather than as LHR-MSY (1 stop) should resolve the issue.