Felt like Goldilocks looking for airline tickets from PHX to CPH. Found one that fit just right,but wasn't very happy with the price. Checked comparison sites. I could save 5% if I used Aeroflot which has a layover in MOSCOW, or took a flight that layovers 17 hours in Newark ( only saves if you sit in the bloody airport). So I watched my preferred flight for about a month. Here come the bears: Went to site Monday, and the price was 20% more. We'd seen a piece on TV that said Thursday was the best day to buy tickets. So we decided it couldn't hurt to wait a few more days. Price same on Tuesday. Wednesday, the price increase was GONE. Just weird, glad I waited. Are prices usually higher on Mondays due to business travelers buying on Mondays?