When flying with Southwest Airlines, understanding the checked bag dimensions is crucial for a hassle-free travel experience. Southwest Airlines is known for its customer-friendly policies, including free checked bags, but it’s important to adhere to their size limits to avoid any inconvenience at the airport. This comprehensive guide will provide you with all the details you need about Southwest checked bag dimensions, ensuring you’re well-prepared for your next flight.

Southwest Airlines Checked Bag Policy

Southwest Airlines allows two free checked bags per ticketed passenger, a policy that sets them apart from many other airlines. However, even with this generous allowance, your bags must meet specific size and weight criteria:

  • Dimensions: The total dimensions (length + width + height) of each checked bag should not exceed 62 inches (157 cm).
  • Weight: Each bag must weigh 50 pounds (23 kg) or less.

Adhering to these requirements is essential to take advantage of Southwest’s free checked baggage allowance without incurring additional fees.

How to Measure Your Checked Bag

Measuring your bag before heading to the airport can save you time and stress. Here’s how to do it:

  1. Length: Measure from one end of the bag to the other, including wheels and handles.
  2. Width: Measure the bag from side to side at its widest point.
  3. Height: Measure from the bottom to the top of the bag.
  4. Add the dimensions together to get the total size of your bag.

If your bag is within the 62-inch total dimension limit, you’re ready to fly with Southwest.

Tips for Staying Within Southwest’s Baggage Limits

  • Use a luggage scale: Avoid overweight bag fees by using a luggage scale to ensure your bag is under the 50-pound weight limit.
  • Select the right bag: Consider investing in luggage that is known for being lightweight yet durable.
  • Pack wisely: Pack only what you need and use packing cubes to organize and compress your items.

Overweight and Oversized Bags

If your bag exceeds Southwest’s size or weight limits, you’ll be subject to additional charges:

  • Overweight bags: Bags weighing 51-100 pounds will incur a $75 per item fee.
  • Oversized bags: Bags with total dimensions of 63-80 inches will also incur a $75 fee. Bags larger than 80 inches cannot be checked.


Flying with Southwest Airlines offers the great benefit of two free checked bags, but it’s important to stay within the airline’s baggage size and weight limits. By following the guidelines for Southwest checked bag dimensions, you can ensure a smooth and efficient check-in process. Remember, preparing and measuring your bags before you arrive at the airport can save you time and avoid any additional fees. Safe travels!

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