Originally Posted by
Often1
The GA could see the US availability because it's likely bookable as a codeshare.
The GA could see codeshare availability, which more than likely was lower than US' actual availability--which would have taken a call to get.
Originally Posted by
Often1
As to sticking to your original routing, that's always a question. Delays disappear and reappear all the time.
Yep; I've been stung by and saved by sticking with original routing many times. When you fly a lot, it averages out.