With the economy the way it is today, many airlines are resorting to charging many passengers for their first checked luggage. Since each airline is different when it comes to their fees, I wrote up a quick chart with the fees that many airlines charge for the first, and second bag that you check in.

Accurate as of July 8, 2009:

Airline
First Checked Bag
Second Checked Bag
Alaska Air
$15
$25
American
$15
$25
Continental
$15
$25
Delta
$15
$50
JetBlue
$0
$20
Northwest
$15
$50
Spirit
$19
$25
Southwest
$0
$0
United
$20
$30
US Air
$20
$30

These rates can change, so make sure that you either call, or check online to see what the fees are.  Also, some airlines will give you a discount if you check your bag in online.  If you already check in online, you’ll want to check in your bags as well.  This alone can save you upwards of $10-$15.