How Strict Is Allegiant on Carry-On Size?

In case you have travelled via Allegiant Airlines, then you must be aware of the situation; however, to put it bluntly, their low-cost ticket can be super tempting. But, there exists a catch — their bag policy is relatively stringent. A good number of people flying do it only to face an unpleasant fee at the gate.

So, how strict is Allegiant? Honestly? They do not fool around. On the other hand, once you get the hang of their allegiant baggage restrictions, it is easy to keep your head above water (and save some money).

Let us dissect it in simple terms — what you are allowed to take with you, what your payment will be, and how to stay away from those annoying last-minute charges.

Understanding the Allegiant’s Baggage Rules

Allegiant Air maintains its low-cost airfares by charging for extras — for example, choosing a seat, buying food and drinks, and, sure, taking luggage. They also have very strict size and timing limitations: what you bring on board and when you pay for it can really change the situation.

Each flyer is entitled to take one small personal item with them without charge, but should you want to bring a typical suitcase or anything that requires the overhead bin, then you would have to pay for it.

What You Can Bring for Free

Your free personal item is something small enough to fit under the seat in front of you — like:

• A small backpack
• A purse or tote bag
• A laptop bag

Just make sure it’s not bigger than 7 x 15 x 16 inches. Allegiant really sticks to those numbers. If your bag pokes out of the sizer even a little, they’ll make you pay a carry-on fee on the spot.

Allegiant Carry-On Bag Rules

If you want to bring a bigger bag that goes in the overhead bin, that’s your Allegiant carry-on bag — and it’s not free.

Here’s what to know about Allegiant carry-on bag size and weight:

• Max size: 9 x 14 x 22 inches (including wheels and handles)
• Max weight: 25 pounds
• It must fit fully in the overhead compartment

Allegiant is one of those airlines that actually checks these things. If your bag looks too big, they’ll ask you to test it in the sizer box — and if it doesn’t fit, you’ll be paying to check it.

So yeah, they’re strict. Really strict.

How Strict Are They, Really?

If we’re being honest, very strict. Allegiant doesn’t have a lot of wiggle room when it comes to luggage size. Gate agents regularly check and measure bags before boarding.

Even if your bag is just an inch too tall or wide, they won’t let it slide. The main reason? They want boarding to be fast and the overhead bins to stay organised.

So if you’re the type to pack your entire closet “just in case,” Allegiant might not be the airline for you.

Allegiant Baggage Prices

Here’s where things can get sneaky: the price you pay for your bag depends on when you pay for it.

Typical Allegiant baggage prices are:

• When booking your flight: $20–$35
• After booking (online): $45–$50
• At the airport or gate: up to $75

Checked bags usually run around $25–$50, depending on weight and timing. The earlier you pay, the cheaper it is. Don’t wait until you get to the airport — that’s when prices really sting.

Easy Packing Tips to Save Money

Here are a few simple tricks to make traveling with Allegiant less stressful:

1. Measure your bags before you leave home. Don’t guess — use a tape measure.
2. Pay for your bag early when you buy your ticket. It’s always cheaper.
3. Use soft-sided luggage. It’s easier to squish into those metal sizers.
4. Pack light. You don’t need everything — promise.
5. Double-check the website. Allegiant sometimes updates their size or weight limits.

A little prep goes a long way toward saving money (and avoiding that awkward moment at the gate).

Common Mistakes Travelers Make

Even experienced fliers make these classic mistakes:

• Bringing a big bag but not paying for it in advance
• Forgetting that wheels and handles count toward bag size
• Overstuffing their carry-on so it doesn’t fit in the bin

If you avoid those three, you’re already ahead of the game.

Conclusion

So, how strict is Allegiant on carry-on size? In short, very. Their allegiant baggage restrictions are tight, and gate agents actually enforce them.

To keep things simple (and cheap), stick to one small personal item or pay in advance for a properly sized Allegiant carry-on bag. Always measure before you go and check the latest Allegiant baggage prices online.

With a little planning, you can skip the stress, breeze through the airport, and enjoy that low fare you scored — without any surprise fees.