Was just looking at a random routing for future, and saw EWR-DTW on Sunday nights in May, say DL2942 (8:21 pm departure). For at least May 5, May 12 and May 19 at that time, there’s no basic availability or it says sold out. I don’t buy they’ve sold that many yet, so assume it means there’s no BE on that routing.

I wouldn’t actually book it because of BE, but was surprised to see routes without BE and got curious. Is that common? I assume mostly on business oriented routes, or is that an EWR thing?