I can't find a quick answer to this. We just booked a trip this fall, Sept 24-Oct 9. Our passports expire March 22, 2019. Only countries will be Germany and Czechia, with a sterile transfer in LHR outbound, flying on British Air, return is on American metal ticketed by BA. Question is obviously the good old 6 month rule. I can't get a clear answer on BA's site, as their instructions appear to be written for Brits leaving the UK, and they seem to indicate 3 months is sufficient.
Problem complicated by our flying to Mexico for July 11-18, and my possibly needing an additional trip late July (and our state drivers' licenses are not compliant yet), leaving us a shorter window for the renewal to get processed if we have to do it upfront (we are also on a trip end of March into April).
Can anyone give me a definitive answer as to whether we can wait fly on our current passports in the fall? TIA, and yes I know I should take the time to search this out, here but so far I have not gotten clarity.