How to get complimentary upgrade on a group flight?

Well, there are some tips and tricks you can use to make an upgrade at your group trip, such as booking a Group Flight Ticket on Obscure Airlines, gazing for upgrade deals, asking from the Airline Counter at the Airport, flying on Quieter Travel Day, and more. On traveling with a group, you can avail of complimentary upgrades on group flights and to get more details on whether your group is eligible to make an upgrade or not, see the mentioned link.

https://www.airlinesgrouptravel.com/blog/complimentary-upgrades-on-group-flight-tickets