Originally Posted by
ExpertFlyer Voice
The issue is they are not F seats, they are J seats. If you request the cabin as Business then you see the available seats as available. If you do a Flight Availability search you'll see that UA isn't telling "First" on the flight, that cabin is sold as business. On UA.com you'll see the cabin class as "D" which is a Business class fare code.
As to why UA is returning the available seats as blocked if you request First vs Business that you would have to ask United.
Actually, they are domestic F seats, but that is irrelevant because UA seat map shows them as selectable and EF seat map shows them as blocked. That is the comparison—not fare codes. Still trying to understand why.