Traveling with Southwest Airlines is often a preferred choice for many due to their renowned "Bags Fly Free" policy – or at least, it used to be more broadly applicable! As of May 28, 2025, Southwest has adjusted its baggage policy, so it's more important than ever to understand the specifics of how much your checked bag can weigh to avoid unexpected fees. This comprehensive guide will walk you through everything you need to know, step-by-step.
Step 1: Let's Talk About Your Luggage!
Before we dive into the nitty-gritty numbers, take a moment to consider your travel plans. Are you a light packer, or do you tend to bring everything but the kitchen sink? The more you understand your packing habits, the better equipped you'll be to navigate Southwest's baggage rules. Are you already picturing yourself wrestling with an overstuffed suitcase at the check-in counter? Let's make sure that doesn't happen!
Step 2: Understanding the Standard Weight and Size Limits
Southwest Airlines, like most carriers, has specific limitations for checked baggage. Adhering to these limits is crucial for a smooth check-in process and to avoid additional charges.
Standard Weight Allowance: The Golden Rule of 50 Pounds
For most passengers, each checked bag on Southwest Airlines has a maximum weight limit of 50 pounds (22.7 kg). This is a pretty standard allowance across many airlines. If your bag exceeds this weight, you'll incur an overweight baggage fee.
Standard Size Allowance: The 62-Inch Rule
In addition to weight, there are also dimensions to consider. Each checked bag must not exceed a maximum linear dimension of 62 inches (157.5 cm). This "linear dimension" is calculated by adding the length, width, and height of your bag (L + W + H). Remember to include handles and wheels in your measurements! A bag that goes over this size will be considered oversized and will also incur an additional fee.
Step 3: Navigating the "Bags Fly Free" Evolution (Post-May 28, 2025)
This is where things have changed recently for Southwest. While the airline was famous for its generous "Bags Fly Free" policy, as of May 28, 2025, most travelers now pay for checked bags.
Who Still Gets Free Checked Bags?
While the blanket "Bags Fly Free" is largely a thing of the past for new bookings, some passengers still enjoy this perk:
Business Select Fliers: Passengers who book a Business Select fare.
Rapid Rewards A-List Preferred Members: Elite members of Southwest's loyalty program.
Rapid Rewards A-List Members and Southwest Credit Card Holders: These individuals may get one free checked bag or a bag credit.
For everyone else, expect to pay for your first and second checked bags. It's essential to check the latest fee structure on Southwest's official website or during your booking process, as these can be subject to change.
Step 4: Understanding Overweight and Oversized Baggage Fees
If your bag exceeds the standard 50 pounds or 62 linear inches, you'll be subject to additional fees. These fees are per bag and are charged in addition to any standard checked bag fees you might already be paying.
Overweight Baggage Fees:
51 to 100 pounds (23 to 45 kg): Bags falling within this range will incur an additional fee, typically around $75 per bag.
Bags exceeding 100 pounds (45 kg): These bags will generally NOT be accepted as checked baggage. For items heavier than 100 pounds, you might need to explore shipping them via Southwest Cargo, but this usually requires being a "Known Shipper" as defined by the TSA.
Oversized Baggage Fees:
63 to 80 inches (160 to 203 cm) linear dimensions: Bags within this range will incur an additional fee, typically around $75 per bag.
Bags exceeding 80 inches (203 cm) linear dimensions: These bags will generally NOT be accepted as checked baggage. Similar to extremely overweight items, you might need to consider shipping options.
It's crucial to note that fees are subject to change, and the most accurate information will always be on the official Southwest Airlines website or by contacting their customer service.
Step 5: Strategies for Avoiding Baggage Fees
Nobody likes surprise fees! Here are some practical tips to help you stay within Southwest's baggage limits and potentially save some money:
A. Invest in a Portable Luggage Scale:
This is perhaps the most effective way to avoid overweight bag fees. These compact scales are inexpensive and allow you to weigh your luggage at home, giving you plenty of time to redistribute items if needed.
B. Pack Smart and Efficiently:
Roll your clothes: Rolling often saves space compared to folding.
Utilize packing cubes: These can compress items and help organize your suitcase, making it easier to see how much space you have left.
Wear your heaviest items: If you're close to the weight limit, wear your heaviest shoes, jacket, or jeans on the plane.
Consider a personal item: Southwest allows one carry-on bag and one personal item (like a purse, laptop bag, or small backpack). Make sure your essentials (and potentially heavier small items) are in your personal item which can be stowed under the seat in front of you.
C. Ship Items Ahead:
For very heavy or numerous items, especially if you're staying for an extended period, consider shipping them via a third-party luggage shipping service. This can sometimes be more cost-effective than paying multiple airline baggage fees.
D. Be Mindful of Special Items:
If you're traveling with sports equipment (golf clubs, skis, etc.), musical instruments, or other non-standard items, check Southwest's specific policies for these. They often have their own set of rules and may or may not count towards your standard baggage allowance. Always confirm before you fly!
Step 6: What to Do if Your Bag is Overweight or Oversized at the Airport
Even with the best planning, sometimes things don't go as expected. Here's what you can do:
Be prepared to pay the fees: Have a credit card ready or sufficient cash to cover any additional charges.
Shift items to your carry-on or personal item: If you have space, you might be able to move some heavier items from your checked bag to your carry-on or personal item (just ensure these also meet their respective limits!).
Consider ditching non-essential items: As a last resort, if the fees are too high, you might need to consider leaving behind items you don't absolutely need.
Step 7: Active-Duty Military Exemptions
Southwest offers a significant exemption for active-duty military personnel. If you have a current, valid military ID, you are exempt from the standard two-piece baggage limit and will not be subject to excess, oversized, or overweight baggage charges. However, each piece of baggage must not exceed 100 pounds in weight and 80 inches in size (length + width + height). This is a substantial benefit for service members and something to keep in mind.
Frequently Asked Questions (FAQ)
Here are 10 common questions related to Southwest Airlines checked bag weight and policy:
How to determine the linear dimensions of my bag?
To find the linear dimensions, simply add the length, width, and height of your bag together (L + W + H). Make sure to measure with handles and wheels included.
How to avoid overweight baggage fees on Southwest?
The best way is to weigh your bag at home using a luggage scale. Pack efficiently, wear heavier items, and consider using your carry-on and personal item for denser belongings.
How to find the most up-to-date baggage fee information for Southwest?
Always refer to the official Southwest Airlines website's "Optional Travel Charges" or "Baggage Policy" sections, or contact their customer service directly.
How to check if my fare type includes free checked bags on Southwest?
When booking your flight, the baggage allowance for your specific fare type (e.g., Business Select) will typically be displayed. You can also review your booking confirmation or log into your Rapid Rewards account for status benefits.
How to deal with special items like sports equipment or musical instruments on Southwest?
Check Southwest's specific policies for special baggage. These often have different dimension and weight guidelines and may incur separate fees or require special handling.
How to check my bag if it's over 100 pounds on Southwest?
Bags exceeding 100 pounds are generally not accepted as checked baggage. You would likely need to explore shipping options, possibly through Southwest Cargo if you meet their "Known Shipper" requirements.
How to pack efficiently to maximize space and stay under weight limits?
Roll clothes, use packing cubes, wear bulky items, and utilize your personal item for smaller, heavier belongings. Consider if you truly need everything you're packing.
How to track my checked bag on Southwest Airlines?
Southwest offers digital bag tracking through their mobile app or website, which can provide updates on your bag's location.
How to check my bag at the airport with Southwest?
You can check bags at the airport ticket counter with a Southwest Agent, or at self-tagging kiosks where available, before dropping them off.
How to get an exception for medical equipment when checking bags on Southwest?
Medical devices often have exemptions from standard baggage limits. It's best to contact Southwest Airlines directly to confirm their policy and any specific requirements for transporting your medical equipment.
