Your Guide to Southwest Baggage Policy: Key Do’s and Don’ts

Last Updated: October 10, 2025

Packing for a trip with Southwest Airlines? Wait, are you sure that you know their baggage policy? Confused? Don’t worry, we will help you learn and pack smartly about Southwest’s baggage policy. We understand that a little prep can save you time, stress, and money. Unlike several other airlines, Southwest Airlines' baggage policy is prominent for its traveler-friendly approach, but there are still a few guidelines to consider when flying with it.

In this blog, we break down the new Southwest baggage policy for your better convenience and clarity. Whether you’re a frequent flyer or a first-time flyer with Southwest Airlines, our blog saves you from overpacking and gives you smart packing tips so that you can breeze through airport check-in like a pro.

Your knowledge of the do’s and don’ts of your baggage can make all the difference in your journey, so get ready to travel smarter, lighter, and stress-free.

A Quick Overview of Southwest Airlines’ Baggage Policy

Southwest distinguishes itself from its competitors in the airline industry for its generous baggage allowance and services. Unlike most carriers, Southwest allowed its passengers to check in two bags for free. Travelers loved this policy. Until recently, they changed their free baggage policy on May 28, 2025, where Southwest ended its long-standing policy of allowing two free checked bags for all passengers.

Exception:

Their latest policy now has exceptions that free checked bags are provided only to specific passenger groups holding fare classes like Business Select and Rapid Rewards A-list preferred.

Here’s what that means for you:

Pay for your first two checked bags unless you qualify for an exception
Exception-If you’ve a Southwest co-branded credit card, or you have an A-list or A-list Preferred Status, or purchase a Business Select ticket
This new policy aligns with other major U.S. airlines like American, Delta, and United, which charge for checked bags.
Your one carry-on bag must fit within the overhead locker (size must be 24*16*10 inches).
Only 1 personal item per person is allowed, which can fit under the seat.
The weight and size limits still apply to every checked baggage.

Also Read: Book a Companion Pass on Southwest Airlines

The New Southwest Baggage Policy updates

While the free bag policy still prevails, Southwest’s latest baggage policy emphasizes stricter checks on overweight and oversized luggage. Bags exceeding the assigned size limits will incur additional charges:

Oversized bag fees- Bags larger than 62 linear inches but not exceeding 115 inches are charged $75 per bag.
Overweight bag fees- Bags weighing over 50 pounds but not over 100 pounds are charged $75 per bag.
Excessive weight- Bags weighing over 100 pounds will not be accepted.

It’s also important to note that carrying sports equipment and musical instruments has special rules- some can count as your free checked bag, depending on size and weight.

Carry-On and Personal Item Rules in Southwest Baggage Policy

When flying with Southwest Airlines, your carry-on bag should comfortably fit in the overhead bin. Always stick to the size limit assigned strictly, i.e., 24*16*10 inches, to avoid gate-checking. Your personal item should slide easily under the seat ahead of you.

Personal items include:

A small backpack or purse.
Camera bag
Baby diaper bag
Laptop or briefcase.

*Pro Tip*: Remember to pack your valuables, travel documents, and electronic devices in your carry-on, rather than in your checked bag.

Also Read: Southwest Red Flights

Pack smarter, save time and money: Tips on what to do.

Traveling light and smart is not just about saving fares or extra money-it’s about smoother check-ins and easier mobility. Here are some tips:

Roll, don’t fold your clothes, and save that extra space
Check the weather and pack only what you’ll need.
Wear bulky items on the plane.
Avoid liquids over 3.4 oz in your carry-on to ensure quick security checks
Use storage organizers to keep everything organized.

Special items: Sports, Pets, and Medical Equipment

Southwest allows travelers to bring special items only under certain conditions:

Sports gear like golf clubs or skis can replace a free checked bag if within weight limits.
Medical devices like wheelchairs or CPAP machines travel free. They aren’t counted as carry-ons.
You can carry your pet (small cat or dog), which is at least 8 weeks old, in a carrier bag that is approved by the airline and fits under the seat in front of you. A one-time pet fare must be paid at the ticket counter.

Always check Southwest’s official website for updated details on customer service and queries.

Also Read: Book Southwest Airlines Chase Ultimate Rewards

Conclusion

Gaining an appropriate understanding and knowledge of Southwest Airlines' Baggage policy helps you avoid extra fees and save you from last-minute hassles. With improved policies and fair guidelines for carry-ons, Southwest Airlines makes flying simple and affordable for travelers.

So, wanderlusts, what’re you waiting for? Gear up, pack your bags, and buckle up to fly. At Affluence Travels, we make sure you’re always ready before you fly. From giving you insights into updated policies to packing guidance, we’re here at your service to help you travel confidently every time.

Start packing for your next trip with Affluence Travels- pack smart, fly easy, and explore more without spending a fortune.