Originally Posted by GrayAnderson

So, in my experience there's often a way to get to a booking screen that's very clearly still operating from an older version of the website (not unlike how some corners of the SkyPesos system have the older visual architecture). But that tends to only be accessible through the website, not via the app. As a note - last time I was dealing with IRROPS, it was giving me different options than the app was (one was protecting me in F on an upgrade, the other wasn't, but I can't recall which was which) and the one via the website easily lets you switch origin/destination (e.g. switching an ORF departure to RIC, or an MCO arrival to TPA...or with some effort, to South Florida).

Edit: Screenshot of the tool:

Edit 2: That's a screenshot a friend sent me a few years ago (as indicated by the dates), but that's the visual architecture I'm used to working with.