Originally Posted by SFOFastAir

The current boarding system works quite well in my experience. It just needs to be correctly implemented. Also note as of 1 Apr the following boarding times are used.
International
PMCO 757-200, 757-300,
767-300, 767-400 T-0:50
PMUA 747, 777, 767-300 T-0:45

Domestic
PMCO 757-200, 757-300,
767-300, 767-400 T-0:50
PMUA 747, 777, 767-300 T-0:40
PMUA 757-200 T-0:45

All 737 T-0:35

All A319/A320 T-0:30

UAX all aircraft T-0:25

Here is the pre-boarding spiel that I use. It is very similar to what is contained in GG ANNOUNCE. When I make boarding announcements I only call boarding group numbers with the exception of the call for passengers with children under the age of 4.

When boarding begins we offer pre-boarding to the following 3 groups:
1) Disabled passengers who would like to pre-board
2) United Global Services passengers
3) Uniformed military personnel

Once those 3 groups have had an opportunity to pre-board all other passengers will board by boarding groups.

Boarding groups 1 thru 4 can board across the Blue Carpet
Boarding groups 5 thru 8 will use the Economy lane against the white wall

Boarding group 1 thru 4 are 1st class, various levels of the Mileage Plus Premiers program and “Presidential Plus” & “MileagePlus Club” card members
Due to a glitch in the system some passenger seated in rows (call out rows in 1st class) may not have Boarding Group 1 on their boarding pass but may still board with Boarding Group 1

Boarding group 5 is those passengers who purchase “Priority Boarding” or are “MileagePlus Explorer” and “OnePass Plus” card members

After boarding Group 5 we will offer boarding to passengers traveling with children under the age of 4

General Boarding will begin with Boarding Group 6, followed by Boarding Group 7 and then Boarding Group 8.

If you aren’t familiar with which Boarding Group you are in; take a moment and look at your boarding pass and there will be a number in the center, 1 thru 8.

Please board when your Boarding Group is called.

Passenger in Boarding Groups 1 thru 4 may board across the Blue carpet when their group is called or at any time after during the boarding process.