Thanks for posting. Fare rules are pretty restricted but it does seem you can get very limited connections in the US and for some reason they book into Y (!). You are also permitted to have transfers within Europe.
Only permitted on certain days between 4 Jan and 8 Feb, 60 day advance purchase requirement, and must be booked by 14th Nov
(Much less of a deal) - J starts at £1800.
Code:
British Airways (BA) AQX6C1S4 LON to NYC
Category 2: Day/Time restrictions
OUTBOUND -
PERMITTED TUE/WED/THU/FRI/SAT ON EACH TRANSATLANTIC
SECTOR.
INBOUND -
PERMITTED MON/TUE/WED/SAT/SUN ON EACH TRANSATLANTIC
SECTOR.
Category 3: Seasonal restrictions
PERMITTED 04JAN THROUGH 08FEB.
Category 5: Advanced reservation/ticketing restrictions
RESERVATIONS FOR ALL SECTORS ARE REQUIRED AT LEAST 60 DAYS
BEFORE DEPARTURE.
TICKETING MUST BE COMPLETED WITHIN 3 DAYS AFTER
RESERVATIONS ARE MADE OR AT LEAST 60 DAYS BEFORE DEPARTURE
WHICHEVER IS EARLIER.
NOTE -
DUE TO TTL ROBOT PROCESS DIFFERENCES MAY EXIST
BETWEEN THE CRS LAST TICKETING DATE AND TTL ROBOT
REMARK.
THE INFORMATION BY SSR IN THE PNR PREVAILS.
Category 8: Stopover restrictions
STOPOVERS NOT PERMITTED ON THE FARE COMPONENT.
Category 9: Transfer restrictions
2 TRANSFERS PERMITTED IN EACH DIRECTION FREE
2 FREE ON AA/AB/AY/BA/HG/IB ONLY IN EUROPE IN EACH
DIRECTION.
AND - 2 TRANSFERS PERMITTED IN EACH DIRECTION FREE
1 FREE BETWEEN AA/BA/IB AND B6 IN BOS/JFK IN
EACH DIRECTION
1 FREE BETWEEN AA/BA/IB AND AS IN LAX/PDX/SEA IN
EACH DIRECTION
1 FREE BETWEEN AA/BA/IB AND WS IN CANADA IN EACH
DIRECTION
1 FREE BETWEEN AA/BA/IB AND HA IN HAWAII IN EACH
DIRECTION
2 FREE ON AA/BA/IB ONLY IN THE UNITED STATES/
CANADA IN EACH DIRECTION
FARE BREAK SURFACE SECTORS NOT PERMITTED AND
EMBEDDED SURFACE SECTORS PERMITTED ON THE FARE
COMPONENT.
Category 15: Sales restrictions
TICKETS MUST BE ISSUED ON/BEFORE 14NOV 17 AND MUST BE
ISSUED ON BA OR IB.