Some regional flights are missing their mainline “codeshare” counterparts. This means two things:
- Using the data, we are unable to determine which banner the operator is actually flying under, especially for those regionals that fly for multiple mainlines.
- You cannot lookup the flight using the mainline code.
RPA4613 on 8/19 does not list any codeshares. It should list AAL4613. And any search for AAL4613 or even AA4613 comes up blank.
On the other hand, RPA5648 on 8/20 lists codeshares, including DAL5648. And a search using the DAL code will correctly point you to the RPA flight.
After digging deeper, it appears it may only be an issue with RPA/AA, but not all of those flights are having the issue. However, I have not done an extensive search.
Edit: I just noticed another recent post regarding codeshares (Missing flight schedule for FR145). Not sure if that is related or not. If so, sorry for the duplicate post.