When it comes to baggage fees, it's important to understand the baggage allowance policies of the airline you're flying. Baggage allowances are airline and route specific, and the total number of bags, the dimensions and weight, vary by the fare type purchased per passenger. Most restricted fares such as "basic economy" or fares on low-cost carriers may not include any bags beyond a personal item as part of the fare; or, the carrier may impose a reduced weight limit which is where baggage fee comes in. For domestic sectors (within the U.S.) the costs can start from US$30.00 for the first checked bag and increase with the number of bags accordingly.

A good rule of thumb is low-cost carriers (such as Spirit, Frontier, Allegiant, Sun Country, etc.) charge for anything other than a personal item (purse, small backpack). The full-service airlines (American, United, Delta, etc.) usually charge customers that book Economy fares for all checked baggage. Note: If you book a Basic Economy fare on a full-service airline, you may have to pay to bring a carry-on bag.

These dimensions are based on general baggage policies for domestic travel within the United States. It may differ for some airlines. Some general guidelines to be mindful of: Personal item (e.g., purse, small backpack, etc.): Dimensions must not exceed 18 x 14 x 8 inches (45 x 35 x 20 cm) including handles and wheels. Carry-on bag: Maximum of 22 x 18 x10 inches (56 x 46 x 25 cm) including handles and wheels. Checked bag: Maximum of 62 linear inches (length + width + height; 158 cm) including handles and wheels. Weight limits vary by airline and cabin class and range from 40-70 pounds. If you booked your flight with us, you can check your specific flight details by entering your Booking ID and email address in the section above. You can review the general baggage information for each airline by selecting an airline from the drop down menu above.