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The US destinations included in the Premium Economy sale are as follows:
- Boston at £706 return
- New York at £716 return
- Chicago at £780 return
- Las Vegas at £795 return
You need to book by 12 July, 2016 but to also benefit from the 2.1% cashback will need to book by 10 July. For some strange reason it does appear that cashback on the London-New York route will be a slightly lower 1.57%.
The travel windows for each destination are so varied and convoluted I am not going to bother replicating them here, but you can see them all very easily on this page. They are also set out in full in the table below: