This has been tricky to find availablity. I see sporadic availability in Oct/Nov and some middle January. Damn I wanted to do one of these or at least attempt. Below are the limiting factors in fare construction:
PERMITTED 16SEP THROUGH 30APR ON THE OUTBOUND
TRANSATLANTIC SECTOR.
Minimum stay requirements
TRAVEL FROM INBOUND TRANSATLANTIC SECTOR MUST COMMENCE NO
EARLIER THAN THE FIRST SUN AFTER DEPARTURE OF THE OUTBOUND
TRANSATLANTIC SECTOR.
Blackout Dates
OUTBOUND -
TRAVEL IS NOT PERMITTED 14MAY 10 THROUGH 30SEP 10.