Originally Posted by
jsloan
If you change your region after doing the search, it's keeping the same fare but changing the currency.
IME, this is incorrect. It should be charging you the lowest available fare based on your itinerary for the new point of sale, in the local currency. It's possible it could be the same fare, just converted into the local currency. It may very well be a different fare - we see example above of where a P fare is filed in both markets, and available in the US point-of-sale, but not in the UK one. I'm perplexed about why the OP was initially showing $7000+ on the US POS, but then going down to $3000+ with a new search vs. the old search and changing the billing address. That seems like an error
Originally Posted by
jsloan
Unfortunately, you're going to find that United.com bases its point of sale on your credit card's billing address, so it will reprice at the higher fare before ticketing.
OP has not stated either way where there CC is billed. We don't know if they have access ot a US-based CC or just a UK one. In this case, seems like a US one is the much better one to use.