Southwest Checked Bags Guide: Fees, Sizes, and Rules You Need to Know

When it comes to air travel, baggage policies can vary widely between airlines. Luckily, Southwest Airlines is known for its traveler-friendly baggage policies.

Understanding their rules around checked bags can help you pack confidently and avoid any unexpected surprises at the airport.

Southwest’s Checked Baggage Policy

One of the biggest advantages of flying Southwest Airlines is their generous free checked baggage allowance. Each passenger is allowed:



  • Two free checked bags




  • Maximum weight per bag: 50 pounds (23 kilograms)




  • Maximum size per bag: 62 linear inches (length + width + height combined)



Baggage Fees on Southwest Airlines



  • First two checked bags: Free




  • Third checked bag and beyond: $75 each (one-way)




  • Oversized bags (63–80 linear inches): $75 per item (in addition to regular fees if applicable)




  • Overweight bags (51–100 pounds): $75 per item



Important: Bags weighing more than 100 pounds or measuring more than 80 linear inches will not be accepted as checked luggage.

Carry-On and Personal Item Rules

In addition to your checked bags, you are allowed:



  • One carry-on bag (must fit in overhead bin, maximum dimensions 24” x 16” x 10”)




  • One personal item (like a backpack, purse, or laptop bag)



Carry-on and personal items are included for free with your ticket.

Tips for Packing Checked Bags on Southwest

1. Weigh Your Bags Before You Go

To avoid overweight fees, check the weight of your luggage at home with a portable luggage scale.

2. Use Durable Luggage

Southwest handles millions of bags each year. Choose sturdy luggage that can withstand rough handling.

3. Label Your Bags Clearly

Attach a luggage tag with your contact information to each checked bag to avoid mix-ups or lost items.

4. Keep Essentials in Your Carry-On

Always pack important documents, medications, and valuables in your carry-on in case your checked bags are delayed.

5. Know the Special Items Rules

Southwest allows certain items like sporting equipment and musical instruments to be checked, often under special size rules. Check their specific guidelines before you fly.

Common Questions About Southwest’s Baggage Policy

Can I check a third bag for free?

No, only the first two checked bags are free. The third bag will incur a $75 fee.

Are there exceptions for military members?

Yes, active-duty military members often have additional baggage allowances. Contact Southwest for details.

What if my bag is oversized and overweight?

You’ll be charged both the oversized and overweight fees ($75 + $75 = $150).

Does Southwest charge for carry-on bags?

No, carry-on bags and personal items are free with every Southwest ticket.

Conclusion

Southwest Airlines makes travel simpler with its generous free checked bag policy. By knowing the size, weight, and fee rules ahead of time, you can pack smart, travel light, and save money. Whether you're heading on a quick getaway or an extended trip, understanding Southwest’s baggage guidelines ensures a smooth travel experience from start to finish.

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