How much is to check in a luggage in an airport?
Depends on the airline. Southwest lets you check one bag free, and most airlines let you check a bag for free if it's an international flight. Worst case scenario, you get charged $25-$50.
Carry on can be 25 lbs free, purse and lap top is also free and check in limit is 50 lbs, some will let you bring one free on international flights, most will charge you $25 dls limit 2 p person