Navigating airline baggage policies can sometimes feel like trying to solve a Rubik's Cube blindfolded, especially when you're excitedly planning a trip! But fear not, because today, we're going to demystify Southwest Airlines' baggage rules, specifically focusing on how heavy your suitcase can be. Get ready to become a baggage weight guru!
Step 1: Are You Ready to Unpack the Mystery?
Before we dive into the nitty-gritty, take a moment to imagine your ideal packing scenario. Is it a perfectly optimized suitcase that glides onto the scale without a hitch, or are you picturing yourself frantically re-arranging items at the check-in counter? Let's aim for the former! Knowing the rules before you pack is your secret weapon.
Step 2: Understanding Southwest's Checked Baggage Policy - The Foundation
Southwest Airlines has long been known for its somewhat generous baggage policy, though recent changes have adjusted some aspects. However, the fundamental weight limit for checked bags remains consistent for most passengers.
The Golden Rule: 50 Pounds (23 kg) Per Bag
For each checked bag, the maximum weight allowed is 50 pounds (23 kg). This is a crucial number to remember. If your bag exceeds this weight, you'll be subject to additional fees.
Size Matters Too: While our focus is on weight, it's worth noting that checked bags also have a size limit: a maximum of 62 linear inches (length + width + height). Exceeding this also incurs a fee.
Step 3: How Many Bags Can You Check (and for What Cost)?
This is where recent changes come into play, so pay close attention!
For Flights Booked On or After May 28, 2025:
First Checked Bag: For most fares (Basic, Wanna Get Away Plus®, and Anytime fares), your first checked bag will now cost $35.
Second Checked Bag: The second checked bag will cost $45.
Third+ Checked Bags: Any additional bags beyond the second will incur a fee of $150 per bag.
Important Note: This marks a significant shift from Southwest's long-standing "Bags Fly Free" policy for all passengers.
Exceptions to the Fees:
Southwest still offers some perks for certain travelers:
Business Select® Fares: If you've booked a Business Select® fare, you still receive two free checked bags.
Rapid Rewards® A-List Preferred Members: These elite members also get their first and second checked bags for free.
Rapid Rewards® A-List Members: A-List members are entitled to one free checked bag.
Southwest Co-branded Credit Cardholders: If you hold a Southwest co-branded credit card, you typically receive one free checked bag.
Step 4: What Happens if Your Bag is Too Heavy? (Overweight Baggage)
Even if you're within your allowed number of bags, going over the 50-pound weight limit will cost you.
Overweight Baggage Fees:
51 to 70 pounds (24 to 32 kg): If your bag weighs between 51 and 70 pounds, you'll be charged an additional $150 per bag.
71 to 100 pounds (32 to 45 kg): For bags weighing between 71 and 100 pounds, the fee increases to $200 per bag.
Bags Exceeding 100 Pounds (45 kg): Anything over 100 pounds will generally not be accepted as checked baggage. Such items typically need to be shipped as air cargo, which has different rules and processes.
Pro Tip: If your bag is both oversized and overweight (but still under 100 lbs), you generally only pay one overweight/oversize fee, whichever is higher, but it's always best to verify with Southwest directly or check their official "Optional Travel Charges" page for the most current information.
Step 5: What About Carry-On Bags? Do They Have a Weight Limit?
This is where Southwest is quite traveler-friendly!
Carry-On Allowance:
Southwest Airlines generally allows:
One carry-on bag (e.g., roller bag, small suitcase)
One personal item (e.g., purse, briefcase, laptop bag, backpack that fits under the seat)
No Specified Weight Limit for Carry-Ons! Southwest does not specify a weight limit for carry-on items. The main requirement is that you must be able to lift and store your carry-on bag in the overhead bin without assistance. If you can't, it should be checked.
Carry-On Size Limits: While no weight limit, there are size restrictions:
Carry-on bag: Typically no larger than 10 x 16 x 24 inches (25.4 x 40.64 x 60.96 cm) including handles and wheels.
Personal item: Must fit under the seat in front of you, generally around 18.5 x 8.5 x 13.5 inches (46 x 21 x 34 cm).
Step 6: Practical Tips for Avoiding Overweight Baggage Fees
Now that you know the numbers, here are some actionable steps to ensure your suitcase is flight-ready:
Invest in a Portable Luggage Scale: These small, inexpensive devices are a game-changer! Weigh your bag before you leave for the airport. This gives you time to adjust.
Pack Smart, Not Just More:
Wear your heaviest items: Instead of packing that bulky jacket or heavy boots, wear them on the plane.
Distribute weight: If traveling with others, distribute heavier items among multiple bags to keep each individual bag under the limit.
Consider rolling clothes: This often saves space, which indirectly can help manage weight by preventing overpacking.
Ship it Ahead: For extremely heavy or numerous items, consider using a luggage shipping service. This can sometimes be more cost-effective than airline overweight fees, especially for very large or heavy items.
Know Your Elite Status/Credit Card Benefits: If you're an A-List member or have a Southwest credit card, remember your free checked bag allowance! Don't pay if you don't have to.
Consolidate Small, Heavy Items: Things like books, toiletries, or dense electronics can quickly add up. Try to consolidate them or put them in your carry-on if they don't violate TSA liquid rules.
Step 7: Special Items and Military Personnel
Southwest has specific policies for certain items and for active-duty military.
Sporting Equipment and Special Items:
Many sports equipment items (e.g., golf clubs, skis, surfboards) can be checked as part of your standard baggage allowance, provided they meet the size and weight limits. If they exceed these, special fees may apply. Always check Southwest's "Special Baggage & Sports Equipment" section on their website for specific item rules.
Active-Duty Military Exemptions:
Active-duty military personnel with a valid military ID are typically exempt from the two-piece baggage limit and are not subject to excess, oversized, or overweight baggage charges. However, each piece of baggage still shouldn't exceed 100 pounds in weight and 80 inches in size. This is a significant benefit for our service members!
By following these steps and keeping these key figures in mind, you'll be well-equipped to manage your luggage on Southwest Airlines, ensuring a smooth and stress-free travel experience without any unexpected baggage fees!
10 Related FAQ Questions
Here are some common questions about Southwest Airlines baggage, with quick answers:
How to avoid checked bag fees on Southwest Airlines?
You can avoid checked bag fees if you are a Business Select® fare ticket holder, a Rapid Rewards® A-List Preferred or A-List member, or a Southwest co-branded credit cardholder, as these provide free checked bag allowances. Also, for most travelers, the new fees only apply to flights booked on or after May 28, 2025.
How to weigh your suitcase accurately at home?
Invest in a portable digital luggage scale. These are inexpensive and allow you to weigh your suitcase before heading to the airport, giving you time to redistribute items if needed.
How to pack to stay within the 50-pound limit?
Prioritize essential items, wear your heaviest clothing and shoes on the plane, and consider packing denser items in your carry-on (observing TSA rules). Distribute weight evenly if you have multiple checked bags.
How to find Southwest's official baggage policy?
Always refer to the "Checked Baggage Policy" or "Optional Travel Charges" page on the official Southwest Airlines website (Southwest.com) for the most up-to-date and authoritative information.
How to handle oversized baggage on Southwest Airlines?
Bags larger than 62 linear inches but not exceeding 80 linear inches will incur an oversized bag fee (typically $200). Bags over 80 inches generally cannot be checked as luggage.
How to know if your carry-on is too heavy for Southwest?
Southwest does not have a specific weight limit for carry-on bags. The primary rule is that you must be able to lift and place your carry-on in the overhead bin unassisted.
How to ship luggage separately if it's too heavy for Southwest?
Consider using a third-party luggage shipping service if your bags are significantly overweight or numerous. This can sometimes be a more cost-effective alternative to airline excess baggage fees.
How to pack liquids in your Southwest carry-on or checked bag?
Liquids in carry-on bags must follow the TSA 3-1-1 rule (containers 3.4 ounces or less, in a quart-sized bag, one bag per passenger). There are no liquid limits for checked bags, but ensure containers are secure to prevent leaks.
How to check in special items like sports equipment on Southwest?
Many sporting equipment items are accepted as checked baggage, often counting as one of your allowed bags, provided they meet standard size and weight limits. Check Southwest's "Special Baggage & Sports Equipment" policy for item-specific details.
How to confirm military baggage exemptions on Southwest?
Active-duty military personnel can present a valid military ID at check-in to receive exemptions from excess, oversized, and overweight baggage fees for up to two bags, provided each bag does not exceed 100 pounds and 80 inches.
