First checked bag fee: $25 ($0 to international destinations except Canada and Caribbean)
Second checked bag fee: $35 ($40-$100 for some international destinations)
Additional bags fee: $125 for third bag; $200 each for bags 4-10
Overweight bags: $90 for 51-70lbs; $175 for 71-100lbs
Oversize bags: $175-$300
(These fees may be higher or lower for some international destinations and are waived for some elite level frequent flyers, active military, American Express SkyMiles Cardmembers, etc).