My hubby and I are finally making our first trip back to the States since I moved here. I just wanted some insight into what to expect at the airports. Right now I'm still a US citizen with a BRP and he's a British citizen. So when we enter the US are we supposed to separate at the border? Or can we go in the same "US" line together since we are married? Again, he's not a US citizen.
When we return to the UK same question? Can I go with him into the "UK" line? How has this changed with the brexit stuff since 31 jan? Has it changed at all? Or do I need to go into a different line when we re enter the UK?
You should always go through immigration together in the same line, both when arriving in the US and landing in the UK.. the only question is which line.
You should be able to both go through the US citizen line when you get to the US, but if in doubt, ask one of the airport staff in the immigration hall.
When you get back to the UK, you are both eligible to use the e-gates (US citizens can now use the e-gates to enter the UK), so I believe you just both enter the UK that way.
Regarding Brexit, I don't believe anything will change until the end of the transition period (31st Dec 2020), but even if it did, it shouldn't affect either of you because he is British and you are not an EEA citizen... so nothing should change for you, even after the transition period.