Originally Posted by
weezl
We are looking at these flights:
MRS-BRU with EI
and
BRU-EWR with UA
Does EI fly MRS-BRU nonstop? Or are you flying via DUB, hence the thread? Note that by time time you get to DUB, you'll be almost as far from BRU as when you started, but you'll have flown 50% past BRU to get there: A map from the Great Circle Mapper - Great Circle Mapper
Originally Posted by
weezl
Will our checked luggage be interlined from MRS to EWR without us having to collect it and re-check in BRU?
Assuming on a single ticket, sure. If you're on separate tickets, that's up to EI.
Originally Posted by
weezl
If BRU is the US entry point, I assume we'll have to do the luggage thing.
I'm fairly certain we'd have heard by now if the US had annexed Belgium.
The fact that your final destination is the USA does not mean that you are automatically eligible to use DUB pre-clearance. The pre-clearance facilities, as discussed in the post you quoted, are for nonstop flights to the US only. Because your onward flight would be BRU, you'll be in the regular international departure area at DUB.
Unless I'm missing something here, on this itinerary, at MRS you'll need to go through outbound Schengen passport control on your way to DUB. At DUB and BRU, you would be in a sterile international, non-Schengen departure area, and then you'll enter the US (as expected) at EWR.