Originally Posted by
robertjw
How do you find fare buckets on a particular flight?
You need to enable Expert Mode in your UA profile
Originally Posted by
Micp3208
... Try this:
My United > Settings > Special Preferences & Accomodations > Scroll down past search preferences and click “Enable expert mode”.
Note just because there is inventory, you may or may not be able to purchase a fare
Fare Class has Inventory - Not Able to Book into?
Expert mode can be useful for finding upgrade space PN/PZ/RN