Looking to travel in September from Seattle to Paris & best prices have layovers in London or Manchester. Recent reading on Brexiit expressed concerns that UK & Europe may not have agreements in place for flights between the two when it goes into effect.
1) Should we expect to have to go through UK customs if we layover there?
2) Should we be concerned that the 2nd leg of the flight might be canceled & we’d have to find alternate transportation from UK to Paris?
Thanks in advance for the collective wisdom.