How to Book a Group with United Airlines?
United Airlines allows its passengers to book a group flight with them through several methods. Passengers can book a group flight on United Airlines through the official website or by speaking to a dedicated group travel person on the customer service team. You can book United Airlines Group Flights by providing the details required in the request form on the website and waiting for the airlines to revert you with several quotes for your trip.
I went through something similar last year booking a big trip, and honestly, prices got way better when I compared group fares to options on https://travelbusinessclass.com . They gave me a better rate for business class than the group deal I was offered through the airline. Might be worth checking there too, especially if some in your group want to upgrade without going broke.