Originally Posted by PJK
I recently flew IAH-EWR on CO 50.
Strangely enough, in EWR I saw a gate assigned to CO 50 to Hamburg (or Frankfurt or somewhere in Germany)
I though flight numbers could be assigned only once. This was clearly another flight; not a plane continuing on. Is there a difference in domestic / international?
There can only be one flight in the air at a time with a flight number. It is basically to keep ATC from going crazy.
CO has done this with most of their international flights. They make them "direct" from other cities around the country. Houston is the most common, but there are some from DEN, DCA and others. It used to help from a marketing perspective. Now it works against you because you only get the direct mileage, not including the cxn.