I saw this on lifehacker and thought it was pretty neto, ’specially for L’avant Poste. Enjoy!

What’s the absolute best time to purchase a ticket directly from the airlines? Turns out it’s Wednesday from midnight to 1a.m. in the time zone of the airline’s “home base.” (For instance, Delta is headquartered in Utah Atlanta and United currently calls Chicago home.)

Why? That’s when the computer systems of most airlines get rid of the reserved but unbooked lower fare reservations. Most of us at one time or another have booked a reservation, then let it go without purchase. Snap-up these discounted fares right after this happens and you’re likely to get a significant discount.

Source: http://soundmoneytips.com/article/15113