Originally Posted by
pacer142
BA for another.
I thought they checked mine at the check-in counter but I had luggage.
The UK immigration does not even check your passport when you leave.
Or perhaps it depends on your destination. I would find it very difficult to believe that they only check on boarding for flights to Australia, when they have to verify your ETA online.
Just checked in on the net for a SQ flight, and it does say to produce documents for verification at the check-in counter.