Originally Posted by
tusphotog
How does this work? Do airlines share their flight numbers to prevent this? Or is it a "hope we don't overlap" type of thing?
Airline flight numbers get transmitted to the FAA, so I think it is a matter of the FAA bouncing them back when there is a conflict. I think the carrier using the number longest gets priority. Maybee OPNLGuyY or Bill Owen can weigh in.