The UK platform could not simply be pointed at American airports. The operators are different, the terminology is different, and several British phrases mean nothing or the wrong thing to a US traveller.
So this is a separate build on the same principles: every operator, every price, the cancellation and amendment terms visible before you commit rather than after.
Why it is still filling up
Supply is the honest constraint. The site says plainly which airports are live and which are still being connected, because claiming coverage we do not have is the fastest way to lose someone at the moment they try to book.
