Southwest Airlines Baggage Policy

Smart travelers always inspect the Southwest Airlines Baggage Policy prior to departure to ensure seamless handling of all bags. This guide provides an in-depth look at the Southwest Airlines baggage policy for 2026, covering everything from carry-on dimensions and personal item rules to checked bag allowances, special equipment, and potential fees.

Understanding these Southwest baggage rules is key to a stress-free journey, ensuring you pack smart and avoid unexpected charges at the airport. Whether you're a frequent flyer or planning your first trip with Southwest, this comprehensive breakdown will help you prepare your luggage with confidence.

Southwest Carry-On Baggage Policy: Dimensions and Personal Items

Southwest Airlines offers a generous carry-on allowance, permitting passengers to bring one standard carry-on bag and one personal item onboard for free. This policy is designed to give travelers flexibility while ensuring smooth boarding and adequate space in the cabin.

Southwest Carry-On Size Limits

Your main carry-on bag must fit securely in the overhead compartment. While Southwest does not impose a specific weight limit for carry-on items, you must be able to lift your bag into the overhead bin unassisted. Adhering to the dimensions below is crucial to avoid gate-checking your bag.

Connecting Flights & Multi-Airline Trips: If your itinerary involves connecting flights or partner airlines, make sure to check and compare their specific baggage allowances: Skywest Airlines Baggage Policy and Spirit Airlines Baggage Policy.

Southwest Personal Item Dimensions

In addition to your carry-on, you can bring one personal item. This item must be small enough to fit completely under the seat in front of you. Common examples include purses, briefcases, laptop bags, small backpacks, and camera bags. Southwest does not publish specific dimensions for personal items, but the general rule is "under the seat."

Gate-Checking Carry-On Bags

On flights that are particularly full, overhead bin space can become limited, especially for passengers in later boarding groups. If overhead bins are full, gate agents may ask you to gate-check your carry-on bag. The good news is that this service is always free of charge with Southwest Airlines, and your bag will be returned to you planeside upon arrival.

Southwest Checked Bag Policy: Two Bags Fly Free

The cornerstone of Southwest's customer-friendly policy is its commitment to "Bags Fly Free." Every single passenger traveling with Southwest Airlines is permitted to check two pieces of luggage without incurring any additional fees. This policy provides significant savings, especially for families or travelers with longer trips.

Free Checked Bag Requirements

To qualify for the complimentary checked baggage, each bag must adhere to specific weight and size restrictions:

• Maximum Weight: Each checked bag must not exceed 50 lbs (23 kg).
• Maximum Dimensions: The total linear dimensions (length + width + height) of each bag must not exceed 62 linear inches (158 cm).

It's always a good idea to measure and weigh your bags before heading to the airport to ensure they meet these requirements and avoid unexpected charges.

Additional Checked Bags (Third Bag and Beyond)

If you need to check more than the two free bags, Southwest charges a flat fee for each additional piece of luggage. For a third checked bag and any subsequent bags, the fee is $125 per bag, each way.

Southwest Baggage Fees: Overweight and Oversized Luggage

While Southwest is generous with its free checked bags, strict limits apply to the weight and size of these items. Exceeding these limits will result in additional fees, which can quickly add up.

Overweight Baggage Charges

If your checked bag surpasses the 50 lbs (23 kg) limit, you will incur an overweight baggage fee:

• 51 to 70 lbs (23-32 kg): $100 per bag, each way.
• 71 to 100 lbs (32-45 kg): $125 per bag, each way.
• Over 100 lbs (45 kg): Bags exceeding 100 lbs are generally not accepted as checked baggage and must be shipped via cargo.

Oversized Baggage Charges

If your checked bag exceeds the 62 linear inches (158 cm) limit, an oversized baggage fee will apply:

• 63 to 80 linear inches (158-203 cm): $125 per bag, each way.
• Over 80 linear inches (203 cm): Bags exceeding 80 linear inches are not accepted as checked baggage.

Important: Cumulative Baggage Fees

It's crucial to understand that these fees can be cumulative. For example, if you check a third bag that is both overweight (e.g., 60 lbs) and oversized (e.g., 70 linear inches), you would pay the $125 additional bag fee, plus a $100 overweight fee, and a $125 oversized fee, totaling $350 for that single bag, each way. Always check your bag's specifications carefully before departure.

Special Baggage and Exemptions

Southwest Airlines offers specific allowances and rules for certain types of baggage, including sports equipment, musical instruments, and items for travelers with infants or military personnel.

Military Baggage Allowance

Active-duty U.S. military personnel traveling on official orders receive special baggage privileges. They are exempt from the two-piece checked baggage limit and do not incur overweight or oversized fees, provided each item does not exceed 100 lbs (45 kg) or 80 linear inches (203 cm). This generous policy is a testament to Southwest's support for service members.

Southwest Sports Equipment Policy

Many common sporting goods can be checked as part of your two free bags, provided they meet the standard weight and size restrictions. This includes items like golf clubs, skis, snowboards, and fishing equipment. However, some items have specific handling fees or may frequently trigger oversized charges:

• Bicycles: A flat fee of $75 per bicycle, each way, applies. Bicycles must be properly packed in a hard-sided case.
• Surfboards: Often subject to oversized baggage fees due to their length. However, Southwest waives the oversized fee for surfboards on flights traveling directly between the Hawaiian islands.

Southwest Musical Instruments Policy

Small musical instruments can typically be carried on if they fit in the overhead bin or under the seat. Larger instruments may be checked as part of your free baggage allowance, subject to the standard weight and size limits. If an instrument exceeds these limits, it will be subject to overweight or oversized baggage fees.

Baby and Child Travel Items

Traveling with infants is made easier with Southwest's policy for baby equipment. In addition to your standard baggage allowance, passengers can check one car seat and one stroller per child for free. Furthermore, breast pumps and coolers containing breast milk can be brought into the cabin as a personal item without counting towards your limit.

Medical Equipment

Southwest Airlines is accommodating for passengers requiring medical equipment. Items such as wheelchairs, crutches, and portable oxygen concentrators are generally allowed in the cabin or checked free of charge, provided they meet specific safety and stowage requirements. It's always advisable to contact Southwest directly for detailed guidance on traveling with specialized medical devices.

Tips for a Seamless Southwest Baggage Experience

• Measure and Weigh: Always measure your luggage (length + width + height) and weigh it at home before heading to the airport. A simple luggage scale can save you significant money.
• Pack Smart: Distribute weight evenly across your two free checked bags to avoid overweight fees. Consider utilizing personal item space for heavier small items.
• Arrive Early: Give yourself ample time at the airport, especially if you anticipate checking multiple bags or have special items.
• Label Your Bags: Clearly tag all your luggage with your name, phone number, and email address. Consider adding a unique identifier to easily spot your bags on the carousel.
• Check Official Policy: While this guide provides the latest information, airline policies can occasionally change. Always double-check the official Southwest Airlines website before your departure for any last-minute updates.

Conclusion

Southwest Airlines continues to be a top choice for many travelers, largely due to its consumer-friendly baggage policy that includes two free checked bags. By understanding the specific Southwest carry-on size, checked bag weight and linear dimensions, and potential fees for oversized or overweight items, you can effectively plan your packing and avoid any surprises at the airport. Embrace the freedom of "Bags Fly Free" and enjoy your journey with Southwest!