Traveling with carry-on luggage can be a bit of a puzzle, especially with different airline policies. But don't worry, we're here to demystify Southwest Airlines' carry-on rules, so you can breeze through the airport like a seasoned pro!
Step 1: Are you ready to pack smart?
Before we dive into the nitty-gritty, let's get you thinking about your packing strategy. The key to a smooth travel experience often lies in what you bring with you and how it fits within airline guidelines. So, are you ready to learn how to maximize your carry-on potential with Southwest? Let's go!
 |
| How Many Carry Ons Does Southwest Airlines Allow |
Step 2: Understanding Southwest's Generous Carry-On Allowance
Southwest Airlines is known for its customer-friendly policies, and that often extends to baggage. Unlike many other airlines that might nickel and dime you for every little thing, Southwest generally allows passengers a decent amount of carry-on space.
2.1 The Core Allowance: One Carry-On Bag + One Personal Item
This is the standard for Southwest Airlines:
One (1) Carry-On Bag: This is your main bag that typically goes in the overhead bin.
One (1) Personal Item: This smaller item should fit comfortably under the seat in front of you.
This means you get to bring two items with you into the cabin, which is pretty good compared to some other carriers that might only allow one.
Tip: Take notes for easier recall later.
2.2 Dimensions Are Key: Measure Twice, Fly Once!
While Southwest doesn't typically have weight restrictions for carry-on bags (as long as you can lift it into the overhead bin yourself), they do have strict size limits. This is where many travelers get caught out.
Carry-On Bag Dimensions: Your carry-on bag should not exceed 24 inches (L) x 16 inches (W) x 10 inches (H). Important Note: These dimensions include wheels, handles, and any attachments to your bag. So, make sure to measure your bag from its absolute furthest points! Popular examples include roller bags and small suitcases that fit these specifications.
Personal Item Dimensions: Your personal item should be no larger than 18.5 inches (L) x 13.5 inches (W) x 8.5 inches (H). This item is designed to fit under the seat in front of you. Common examples include:
Purses (including crossbody bags)
Briefcases
Laptop computer cases
Small backpacks
Pillows (neck pillows do not count toward the carry-on limit)
Blankets
Small cameras
Step 3: What Counts and What Doesn't (Beyond the Basics)
Southwest is quite accommodating with certain items that don't count towards your carry-on limit. This is excellent news for travelers with specific needs or items!
3.1 Exempt Items: Extra Convenience for You
You can typically bring the following items in addition to your one carry-on bag and one personal item:
Outer garments: Such as coats, jackets, or wraps.
Food for consumption during the flight: Provided it's in disposable packaging.
Assistive devices: This is a big one! Items like canes, crutches, walkers, and wheelchairs do not count against your carry-on allowance.
Child restraint devices: If you're traveling with a child, an FAA-approved car seat can often be brought on board if you've purchased a seat for the child or if there's an available space. Compact strollers that fit in the overhead bin may also be allowed.
Breast pumps, milk/formula, and diaper bags: These are generally permitted as additional items when traveling with an infant.
Medically necessary items: Such as oxygen concentrators (CPAP machines) and certain medications (e.g., insulin kits, EpiPens), provided they meet TSA guidelines.
Note: Skipping ahead? Don’t miss the middle sections.
 |
3.2 Special Considerations: Pets and Musical Instruments
Traveling with a Pet: If you're traveling with a small domesticated cat or dog in the cabin, the pet carrier will count as either your personal item or your carry-on bag. There's also a fee associated with bringing a pet, and certain restrictions apply (e.g., only on domestic flights, specific carrier dimensions, and a limit on the number of pets per flight). Always check Southwest's specific pet policy before you fly.
Musical Instruments: Small musical instruments that fit within the carry-on dimensions can be brought onboard as your carry-on item. Larger instruments may require the purchase of an additional seat or need to be checked as baggage.
Step 4: Avoiding Gate Checking and Fees
The goal is to avoid having your carry-on bag checked at the gate, which can happen if it exceeds the size limits or if overhead bin space runs out.
4.1 The Sizing Bin is Your Friend (or Foe!)
At the airport, you'll often see metal sizing bins near the check-in counters and at the gate. Use these! If your carry-on bag fits comfortably within the bin without forcing it, you're usually good to go. If it doesn't, you run the risk of it being gate-checked.
4.2 Be Prepared for Tight Spaces
Even if your bag meets the dimensions, overhead bin space can be limited, especially on full flights. Southwest generally has an open seating policy, so boarding earlier can increase your chances of finding space. If the overhead bins are full, your carry-on might be gate-checked. While Southwest doesn't typically charge for the first two checked bags (though this policy has been subject to recent changes for some fare types and dates booked after May 28, 2025, so always verify your specific ticket conditions), getting your carry-on gate-checked can be an inconvenience at your destination.
QuickTip: Stop scrolling if you find value.
4.3 Understanding Checked Bag Policies (A Quick Glance)
While this post focuses on carry-ons, it's worth noting that for flights booked before May 28, 2025, Southwest generally allowed two checked bags for free, provided they meet weight (50 lbs) and size (62 linear inches) limits. For tickets purchased on or after May 28, 2025, new baggage fees have been introduced for certain fare types (e.g., Basic, Wanna Get Away Plus, Anytime), while Business Select and A-List Preferred members may still receive free checked bags. Always consult Southwest's official website or your ticket details for the most up-to-date and accurate information regarding checked baggage fees.
Step 5: Packing Smart Tips for Your Southwest Flight
Now that you know the rules, here are some actionable tips to ensure a smooth carry-on experience:
Roll, Don't Fold: Rolling your clothes can save significant space in your carry-on bag.
Utilize Packing Cubes: These can help compress your items and keep them organized, making it easier to fit more into your bag.
Wear Your Bulkiest Items: If you have a heavy coat or bulky shoes, consider wearing them on the plane rather than packing them.
Liquids Rule (TSA 3-1-1): Remember the TSA liquid rule for your carry-on: liquids, aerosols, gels, creams, and pastes must be in containers of 3.4 ounces (100 milliliters) or less, fit in one quart-sized clear bag, and be limited to one bag per passenger.
Electronics Accessibility: Keep your laptop, tablets, and other electronic devices easily accessible for security screening.
Essentials in Your Personal Item: Pack medications, important documents, chargers, and anything you might need during the flight in your personal item, as it will be easily accessible under the seat.
By following these steps, you'll be well-prepared to navigate Southwest Airlines' carry-on policies and enjoy a stress-free journey!
10 Related FAQ Questions
How to determine if my carry-on bag fits Southwest's dimensions? Measure your bag's length, width, and height, including wheels and handles. The total should not exceed 24 x 16 x 10 inches for the carry-on and 18.5 x 13.5 x 8.5 inches for the personal item.
QuickTip: Stop scrolling, read carefully here.
How to avoid my carry-on being gate-checked on Southwest? Ensure your bag strictly adheres to the dimension limits. Board as early as possible to secure overhead bin space, and avoid overpacking your bag.
How to pack liquids in my Southwest carry-on? Follow the TSA's 3-1-1 rule: containers must be 3.4 ounces (100 ml) or less, fit in one quart-sized clear bag, and be limited to one bag per passenger.
How to travel with a pet on Southwest and where does the carrier count? A pet carrier counts as either your carry-on bag or your personal item. Check Southwest's pet policy for specific carrier dimensions, fees, and booking requirements.
How to know if a specific item is prohibited in my Southwest carry-on? Always check the TSA's website for a comprehensive list of prohibited items. Common prohibitions include firearms, sharp objects, and large quantities of flammable liquids.
How to bring medical devices or assistive aids on Southwest flights? Most medically necessary devices (e.g., CPAP machines, wheelchairs, canes) are allowed in addition to your standard carry-on allowance and do not count against your limit.
How to handle large musical instruments when flying Southwest? Small instruments fitting carry-on dimensions can be brought on board as your carry-on. Larger instruments may require purchasing an additional seat or checking as baggage.
How to pack smart to maximize carry-on space for Southwest? Utilize packing cubes, roll your clothes instead of folding, and wear your bulkiest items to free up space in your bag.
How to find the most up-to-date Southwest baggage policies? Always refer to the official Southwest Airlines website or contact their customer service directly, as policies can change.
How to ensure a smooth security screening process with my carry-on? Have your liquids bag easily accessible, and be prepared to remove electronics like laptops and tablets for separate screening, as per TSA guidelines.
 |
