1. Prices of Flights Are Cheaper In Low Season
I have found prices to be super cheap or reasonably inexpensive soon after the school holidays. So around November when University students have had their freshers week is usually a great time to fly. Also around mid-January but not too far into February because they pick up again people being flooded with valentines ideas. Mid-January, I guess because people are still traveling back from the Xmas holidays so I guess airline bookings dip after the first and second week of January hence why they reduce the prices to entice bookings.