Introduction
Southwest Airlines has long been known for its customer-friendly baggage policies. Unlike many other airlines, Southwest allows travelers to check in two bags for free, making it a favorite for budget-conscious flyers and families alike. This generous policy has earned the airline a strong reputation for transparency and value.
However, as we move into 2025 it’s more important than ever to understand the Southwest airlines latest checked baggage fees rules. Airlines often update their policies and even small changes can lead to unexpected fees or travel delays. Whether you are a frequent flyer or planning your first trip with Southwest, staying informed can help you avoid hidden costs and travel with peace of mind.
This complete guide breaks down everything you need to know about Southwest Airlines 2025 baggage fees policy including:
- Checked bag allowances and fees
- Carry-on size and weight limits
- Overweight and oversized baggage charges
- Special items and exceptions
By the end of this guide you’ll know exactly what to expect — and how to pack smartly — before heading to the airport.
Southwest Airlines Baggage Policy Overview
When you book a standard ticket with Southwest Airlines, you get more than just a seat on the plane — you get one of the most generous baggage policies in the industry.
What’s Included with a Standard Southwest Ticket?
- Free Checked Bags
Each passenger can check two bags at no extra cost. This is a major benefit, especially for families or travelers packing for longer trips. Most airlines charge $30–$40 per checked bag, so this feature can save you $60 or more per flight. - Free Carry-On Bag + 1 Personal Item
You’re also allowed to bring one carry-on bag (like a small suitcase or duffel bag) and one personal item (such as a backpack, laptop bag, or purse) onto the plane — again, free of charge.
How Southwest Compares to Other Airlines
While many major U.S. airlines charge for checked baggage — even on domestic flights — Southwest stands out by including it at no extra cost. Here’s a quick comparison:
| Airline | Free Checked Bags | Carry-On Policy |
| Southwest | 2 | 1 carry-on + 1 personal item |
| Delta Air Lines | 0 (fees apply) | 1 carry-on + 1 personal item |
| American Airlines | 0 (fees apply) | 1 carry-on + 1 personal item |
| United Airlines | 0 (fees apply)* | 1 carry-on + 1 personal item* |
Note: United Basic Economy fare may not allow a full-size carry-on.
By offering two free checked bags, Southwest can help travelers avoid common baggage fees that quickly add up on other airlines. It’s one of the key reasons many passengers choose Southwest for both business and leisure travel.
Southwest Airlines Checked Baggage Fees
One of the biggest advantages of flying with Southwest Airlines is their generous baggage fees policy — especially when it comes to checked bags. In 2025 Southwest still offers 2 free checked bags for every passenger making it one of the few U.S. airlines with this money-saving benefit.
If you are searching for Southwest checked baggage fees here’s what you need to know:
Standard Baggage Fees on Southwest Airlines
| Number of Checked Bags | Baggage Fee | Notes |
| 1st Bag | Free | Up to 50 lbs & 62 inches (L+W+H) |
| 2nd Bag | Free | Same weight and size rules apply |
| 3+ Bags | $75 each | Per additional bag, one-way |
| Overweight Bags | $75 each | 51–100 lbs |
| Oversized Bags | $75 each | Over 62 inches (but max 80 in) |
Important: Bags over 100 lbs or larger than 80 inches will not be accepted as checked luggage.
Important Notes About Baggage Fees on Southwest
- Military Travelers: Active-duty military personnel (with ID) may be allowed more baggage with higher weight limits at no extra charge. Check with Southwest directly for the latest rules.
- Fare Class: Whether you’re flying Wanna Get Away, Anytime, or Business Select, all fare classes include 2 free checked bags.
- Sporting Equipment & Special Items: Items like golf bags, skis, and strollers may count as part of your checked baggage allowance but could be subject to size or weight restrictions.
Why It Matters
Most major airlines charge at least $30–$40 for each checked bag. With Southwest Airlines check-in baggage fees still $0 for the first two bags, you can save over $100 round trip — a major win for families and frequent travelers.
If you’re comparing airlines or looking to avoid surprise costs, understanding the baggage fees on Southwest is key to planning smarter and spending less.
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Extra, Overweight, and Oversized Baggage Fees
While Southwest Airlines is known for allowing two free checked bags, extra fees do apply if your luggage is too heavy or too large. Knowing these limits in advance can help you avoid surprise costs at the airport.
What Counts as Overweight or Oversized?
- Overweight baggage: Any bag that weighs more than 50 lbs
- Oversized baggage: Any bag that measures more than 62 linear inches (total of length + width + height)
Bags over 100 lbs or larger than 80 inches are not accepted and must be shipped separately.
Southwest Airlines Baggage Fee Breakdown
| Baggage Type | Fee (One-Way) | Details |
| 3rd+ Checked Bag | $75 | After the 2 free checked bags |
| Overweight (51–70 lbs) | $75 | Per bag |
| Overweight (71–100 lbs) | $125 | Per bag |
| Oversized (63–80 in) | $75 | Per bag |
| Over 100 lbs or 80 in | ❌ Not Accepted | Must use cargo or shipping services |
These fees are in addition to standard checked baggage policies.
Tips to Avoid Overweight or Oversized Baggage Fees
- Weigh your luggage at home using a digital luggage scale
- Pack smart — avoid heavy items like books or large shoes unless necessary
- Use compression bags to fit more while keeping size manageable
- Split items between your carry-on and checked bags
- Know your limits: Aim for under 50 lbs and 62 inches total to avoid extra charges
Carry-On Baggage Rules and Size Limits
When flying with Southwest Airlines, knowing the rules for carry-on luggage can help you pack smarter and avoid last-minute issues at the gate. The good news? Southwest does not charge a fee for standard carry-on bags or personal items.
What Counts as a Carry-On?
A carry-on bag is a small suitcase, duffel bag, or backpack that fits in the overhead bin. It’s perfect for essentials, a few outfits, or short trips.
Carry-On Size Limit for Southwest Airlines:
- Maximum size: 24” (L) x 16” (W) x 10” (H)
- Must fit in the overhead storage compartment
- One carry-on is allowed per passenger
If your bag exceeds these dimensions, it may need to be checked at the gate, and standard Southwest Airlines carry-on size restrictions will apply.
What is a Personal Item?
A personal item is smaller than a carry-on and must fit under the seat in front of you. Examples include:
- Laptop bag
- Purse or handbag
- Small backpack
- Briefcase or camera bag
There’s no strict size limit for personal items, but they should be small enough to fit under your seat without blocking space.
Southwest Carry-On Fee Policy
Free carry-on bag + free personal item
There are no carry-on baggage fees on Southwest — unlike some budget airlines that charge for overhead bin access.
Where Your Bags Go
- Carry-On Bag: Stored in the overhead bin
- Personal Item: Placed under the seat in front of you
Knowing the difference helps you organize better and board more efficiently.
Helpful Tip
Before heading to the airport, double-check your bag’s measurements and weigh your items. If your carry-on is too big, you might need to check it at the gate.
Visual Guide
- Side-by-side image of a carry-on vs personal item
- Size dimensions labeled clearly
- Icons showing where each item is stored on the plane
Summary
Southwest Airlines continues to offer one of the best baggage deals in 2025. Every passenger gets 2 free checked bags, 1 carry-on, and 1 personal item at no extra cost. Carry-on luggage must be no larger than 24” x 16” x 10”, and personal items must fit under the seat. Overweight and oversized bags will incur fees starting at $75, and items over 100 lbs or 80 inches won’t be accepted. Military exceptions and special baggage (like sports equipment) may have additional rules.
Before you pack, always check the latest baggage policies on Southwest’s official website, especially if you’re flying internationally or during peak seasons. Airline rules can change, and knowing the current guidelines helps you avoid surprise fees and travel delays.
FAQ’S Frequently Asked Questions
No, Southwest Airlines does not charge for the first two checked bags. Each passenger is allowed to check up to two bags for free, as long as they meet the airline’s size and weight limits (under 50 lbs and 62 linear inches per bag). This free baggage policy sets Southwest apart from most other U.S. airlines, which typically charge $30 or more per checked bag.
The maximum carry-on size for Southwest Airlines is 24 x 16 x 10 inches (L x W x H), including wheels and handles. Your carry-on must fit in the overhead bin. If it exceeds these dimensions, it may need to be checked at the gate.
Southwest is fairly consistent about carry-on size, especially during full flights. While they may not measure every bag, if your carry-on clearly exceeds the 24 x 16 x 10-inch limit or doesn’t fit in the overhead bin, you’ll likely be asked to check it. To avoid issues, it’s best to stick to the official dimensions and test your bag at home before traveling.
Southwest does not charge baggage fees for international flights on their own routes — the 2 free checked bags policy still applies. However, if you’re flying with a codeshare or partner airline as part of your international trip, different baggage rules and fees may apply. Always check your full itinerary for any exceptions.
Yes, you can bring one carry-on bag and one personal item, such as a backpack, on Southwest Airlines. The carry-on goes in the overhead bin, while the personal item (like a backpack, laptop bag, or purse) should fit under the seat in front of you. Just make sure your backpack is a manageable size to fit under the seat.
