One stop flights LHR-BZE
Hello,
I’m looking at booking a flight LHR-BZE in Feb/March. All of the options that are coming up in the United website include 2 stops, normally via FRA or MUC and then IAH. On various price comparison sites, one stop options come up with the direct LHR-IAH flights followed by the next day connection to BZE, but I then get an error when it redirects me to United’s website. Does anyone know why I might not be able to book the one stop option? Many thanks!