The pricing policy of airlines in the last few years is NOT to reduce flight prices at the last minute, but to stick with the policy of only early bookers get cheap deals.
Sometimes sales are announced, but it's unlikely with only 3 weeks to go.
Package deals which are unsold might be sold off at a loss at the last minute.
However, I was looking at a package deal for a sun holiday at Halloween and was told that there is limited capacity and its booking up quickly. The industry didn't think many people would be interested and didn't put on many flights.