United.com has broken something else now. You can't click on "Change Flights" and use a multi-city code (NYC/WAS/LON/etc.). The search simply errors out.
For example I have an upcoming DCA-IAH flight that is the middle of a ticket I've already flown the outbound on. When I try to change the flight and search for "WAS (Washington - All Airports)" I get the following:
This is new as of this week. Just last week I was able to search for flight changes using NYC without issue.
Please fix this UA. I have no clue what you changed to even break this.
-RM