Airline group booking have the following benifits:-
1. You can book more than 10 passengers at a time.
2. You have to finalise the name of the passengers before 10 days of departure date.
3. You have to pay the cancellation amount of your tickets at the time of booking rest the amount you have to pay before 21 days of departure date.
4. You can increase or decrease the number of passengers before departure date at nominal cost.