Southwest Airlines Carry On Bag Policy

So, you’re flying Southwest, huh? Maybe you’ve heard the rumors about their carry on policy, or maybe you’re just trying to avoid the baggage claim scrum. Either way, you’re in for a very chill experience. Let’s break down why Southwest’s approach to carry-ons is actually kind of cool.

Two free bags? Yes, really.

Here’s the headline: Southwest lets you bring two carry-on items for free. That’s one standard suitcase and one personal item, like a backpack or purse.

Most airlines charge you for a checked bag, but Southwest? They just shrug and say, "Go ahead, pack your whole closet." It’s like the airline equivalent of a friend who always offers you the last slice of pizza.

No fees, no hidden charges. Just your bag, your adventure, and maybe a little extra room for snacks.

The dimensions: roomier than you think.

Your carry-on suitcase needs to be 24 inches tall, 16 inches wide, and 10 inches deep. That’s a bit smaller than the standard 22-inch bag, so check your luggage tag before you go.

But here’s the fun part: Southwest’s overhead bins are generous. They actually fit bags that are slightly over the limit—like a 24-inch bag squeezing into a bin built for a 22-inch bag. It’s like watching a cat fit into a box it definitely shouldn’t fit into.

Your personal item (purse, laptop bag) just has to fit under the seat. That’s the easy part.

Boarding order: the great race.

Southwest doesn’t assign seats. You get a boarding group (A, B, or C) and a number. Group A boards first, and Group C kind of hopes for a miracle.

If you really want overhead bin space, aim for Group A or an early Group B boarding slot. Don’t stress, though—Southwest’s bins are usually big enough for everyone.

Pro tip: Check in exactly 24 hours before your flight to snag a good spot. It’s like a mini game, but with no losing.

Banned items: the usual suspects.

Same rules as every airline: no sharp objects, no liquids over 3.4 ounces, and definitely no flamethrowers (seriously, why would you bring that?).

Southwest Carry On Bag Dimensions at Andrew Mckeown blog

But here’s a fun detail: Southwest is super strict about lithium batteries. Power banks must be in your carry-on, not checked. So if you’re a tech lover, keep that battery pack close.

Also, leave the hoverboard at home. They’re banned on all Southwest flights. Sorry, futuristic travel dreams.

Why this policy is actually cool.

Most airlines treat carry-ons like a privilege you have to pay for. Southwest makes them a standard perk, like free peanuts (or pretzels, if you’re lucky).

It’s also practical. You never worry about losing your luggage, and you can skip the baggage claim dance. Think of it as the "anti-hassle" policy.

And let’s be honest: walking off the plane with your bag in hand feels empowering. You’re a minimalist warrior, ready for the world.

A few quirks to know.

If your bag is oversized or heavy, Southwest might ask you to check it at the gate—still free. So even if you overpack, you’re not punished.

And don’t worry about music equipment. Guitars are allowed in the overhead bin, as long as they fit. Southwest is actually pretty musician-friendly.

Bottom line: pack what you need, bring your sense of adventure, and board with confidence. You’ve got two free bags and a whole lot of sky ahead.