What days of the week is air travel cheaper?

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Wed. early

Check the papers

Tuesday, Wednesday, Saturday. The first flights on Saturday may be cheapest.

The best day of the week is on Wednesdays.

Midweek like Wednesday and Thursday would be the cheapest days of the week to fly. Of course, Mondays and Fridays would have to be the busiest especially because many would travel for business and others would travel for short weekend getaways.  Basically you can still travel cheap on these busy days when you get to avail of last minute travel deals. Check out websites that offer last minute travel deals as well as coupons for discounts on your travel. For instance right now, expedia is offering a $200 coupon for a future package purchase when you book a flight or vacation with them. Here is the link to that coupon http://www.traveldealsdiscounts.com/discount-travel-deals/Expedia.com/

Wednesdays

I believe that it is dependent on the availability of seating; however, I believe that best time to hit the web looking for bargains is early Wen. AM, as, if I recall correctly, The new fairs for the week are posted at midnight on Tuesday.