2026 Rules of Southwest Airlines Charging For Carry-On Bags

Southwest! A most affordable airline to fly in the United States that serves more than 120 destinations right now, including international ones as well. Baggage policy is the main concern of so many flyers who are going to fly with this airline for their upcoming journey because they are not sure about the carry-on bags policy or the charges. Airfares are quite cost-effective for this airline, but the ticket price may cost too much if you need to pay the overweight, oversize baggage fee of Southwest Airlines at the airport. Hence, make sure to clear all your doubts related to the charge for carry-on bags in this airline.

Let’s answer in simple language –

No — Southwest does not charge for carry-on bags.

That part of their policy is still refreshingly simple.

While many leading airlines in the United States now attach fees to everything from seat selection to overhead bin space, Southwest continues to allow passengers to bring carry-on luggage onboard without paying extra. Is it amazing or not?

But before you celebrate and start packing so much stuff, there are a few important details you should understand.

What You Can Bring Onboard (For Free)

A ticketed passenger is allowed to carry free of cost-

One carry-on bag (stored in the overhead bin)

One personal item (stored under the seat in front of you)

No additional fee for either of these items.

You can bring a backpack, a purse, a laptop bag or a small tote bag as your one personal item.

The key requirement is only one, which is that it must fit under the seat in front of you.

Carry-On Size Limits

As per the Southwest Airlines baggage policy, the airline does not charge for carry-ons, but they do enforce the size rules. Your carry-on luggage must not exceed 24 x 16 x 10 inches (including wheels and handles).

Suppose that if your bag is too large to fit in the overhead bin space, it may need to be checked, and that’s where fees can apply.

So while carry-ons are free, oversized bags are not.

Is There a Weight Limit?

The airline does not publish any strict weight limit for carry-on bags, but one practical rule that you must follow is that you must be able to lift the bag into the overhead bin yourself. If you can’t safely lift it, it may need to be gate-checked.

When Could You End Up Paying?

Here’s where confusion sometimes happens.

You won’t pay for a standard carry-on, but you might pay if your bag exceeds the size limit.

Overhead bins are full, and the bag must be checked.

You are carrying more than the allowed number of items.

Checked bags fees are separate and may apply depending on your fare type.

Why Southwest Still Keeps Carry-Ons Free

Unlike other airlines in the U.S., Southwest has chosen to maintain a simpler approach.

It’s part of their long-standing brand philosophy:

Fewer surprise fees. Clear rules. Straightforward travel.

Free carry-on bags are one of the major perks for flyers while travelling with Southwest Airlines.

Smart Packing Tips

Make sure that you are carrying a suitcase that meets size limits.

Pack versatile clothing.

If your luggage is overweight, then wear bulkier items like jackets during boarding.

Place smaller items inside your personal bag

A well-packed carry-on can easily handle a 3–5 day trip.

Final Verdict

So, does Southwest Airlines charge for carry-on bags?

The answer is No.

One carry-on and one personal item are included with your ticket.

To avoid surprises, make sure your bags fit the size limits because free only applies when you follow the rules.