Looking at flights to ORD from LHR this autumn, and wondering whether I should pay the extra for an F seat. It seems to be the A380 outbound, and 787 inbound flights that suit my times best.

The extra amount of cash isn’t huge on the dates I’m looking at, and apart from the extra Avios, do those more frequent fliers than myself think there’s much of a difference between the classes these days.

thank you.