Originally Posted by
Often1
There is no "best" time to purchase. There may be overall likelihoods, but because you are booking a specific flight on a specific day, you can't predict.
If there are a lot of empty seats the day before the flight, a time when seats are usually expensive, a carrier will sell them in its lowest fare bucket. But, if you wait, there might not be any at all.
I agree with this.
You can make your own prediction by keeping track how low the fare can be in specific route for longer period (i.e 6-12 months) and set your maximum budget for it. the date will be inflexible or even sometimes unpredictable, but you can prepare for it. if even lower price suddenly occured, what can you do unless swallow the pills and move on?
