Spirit Vs Frontier Bag Policy

Let’s talk about two airlines that make you feel like you’re playing a high-stakes game of luggage roulette. I’m talking about Spirit Airlines and Frontier Airlines. Their bag policies are weirdly fascinating, like a cryptic puzzle designed by a budget-conscious wizard. Buckle up, because we’re diving into the chaos of personal items, sizers, and hidden fees.

The Great Personal Item Smackdown

Both airlines allow one “personal item” for free. That’s it. A purse, a backpack, or a small duffel bag. But here’s the kicker: the dimensions are slightly different, and that difference feels personal. Spirit says your bag must be 18 x 14 x 8 inches. Frontier demands 18 x 14 x 8 inches too? Wait, that’s the same! Actually, Frontier sneakily uses a slightly different measurement method, so your bag might still fail.

Why does this matter? Because gate agents have measuring bins that look like medieval torture devices. You’ll watch a grown man try to jam his overstuffed duffel into one, sweating like he’s on a reality show. It’s equal parts cringe and comedy.

The Sizer: Your Bag’s Worst Enemy

Both airlines use a metal sizer box at the gate. If your bag doesn’t fit, you pay a $99 fee at the gate. That’s more than the flight itself sometimes! Pro tip: do not try to “cheat” by wearing your jacket over a bulging backpack. They’ve seen it all. The sizer is cold, unforgiving, and judges you silently.

Here’s a funny detail: Spirit’s sizer is slightly deeper than Frontier’s in practice. Yes, we measured. People on YouTube have tested this with the same bag and got different results. It’s like the airlines are playing a game of “gotcha” with your backpack.

Carry-On Baggage: The Price of Ambition

Want a wheeled carry-on? Spirit charges you for it. Frontier charges you for it. Both treat a carry-on like a luxury item, which is hilarious because on other airlines, it’s free. On Spirit, you’ll pay between $35 and $65 if you book early. Frontier is similar, but they offer a “discount bundle” that tricks you into thinking you’re saving money.

Orlando woman suing Frontier for $100 million for 'deceptive' baggage

Here’s the fun part: Frontier’s carry-on limit is 24 x 16 x 10 inches. Spirit’s is 22 x 18 x 10 inches. That four-inch difference in width means your suitcase might fit on Frontier but not on Spirit. Imagine the panic when you swap flights and your bag suddenly becomes a criminal.

Playful Punishments for Overpackers

If you show up with a bag that’s too big at the counter, they’ll let you check it for a fee. At the gate? Congratulations, you’re now paying the “I-made-a-bad-choice” fee. Spirit’s gate fee for a carry-on is up to $99. Frontier’s is $99 too, but they’ll sometimes match it lower if you beg. I’ve seen people try to bribe agents with snacks. It doesn’t work.

One traveler told me she saw a guy buy a $10 duffel bag at the airport store just to redistribute his clothes. He literally wore five shirts onto the plane. Respect the hustle.

Spirit vs Frontier: The Real Baggage Fees in 2025 – National Traveller

Quirky Differences That Will Make You Laugh

Frontier has a “Discount Den” membership that gives you free seat bags (like personal items?). It costs $59.95 a year, and you get one free checked bag? Wait, no. It’s complicated. Spirit has the “$9 Fare Club,” which is also $59.95 a year and gives you discounts on bags. Honestly, both sound like scams designed by your chaotic uncle who sells timeshares.

Another quirky fact: Spirit’s website will auto-add a bag to your booking if you’re not careful. Frontier’s site hides the bag options in a drop-down menu that’s easy to miss. Both are user-hostile. It’s like they’re daring you to be smarter than a toddler.

The Emotional Rollercoaster of Bag Fees

Flying Spirit or Frontier with a bag is a test of emotional intelligence. You’ll feel rage when you see a $65 fee for a backpack. Then you’ll feel smug when you see someone else pay $99. Then you’ll feel terror when the gate agent eyeballs your duffel. It’s cheaper to just ship your clothes via FedEx. No joke, I’ve done it.

How Much To Add Carry On Spirit at Kevin Davidson blog

Why is this fun to talk about? Because it’s a shared trauma. We all bond over the horror of watching a family argue with an agent about a pink suitcase. It’s like a comedy show you paid for with your dignity.

The Verdict: Who Wins the Bag War?

If you’re a minimalist, both airlines are fine. Spirit wins for stricter enforcement—they actually measure your bag more often. Frontier is a bit more lenient, but they’ll nail you on weight if you’re checked. But honestly? The real winner is the person who packs everything into a fanny pack and buys a drink on the plane with all the money they saved.

Remember: Measure your bag before you leave home. I’m not kidding. Use a tape measure. Don’t trust the “oh, it’ll fit” feeling. That feeling is a liar. Also, don’t try to wear a neck pillow stuffed with socks. That’s a rookie move. Just embrace the chaos and enjoy the show.

So next time you book a cheap flight, play a game with your friend: “Will my bag fit?” If it does, you win a cheap high-five. If it doesn’t, you lose your lunch money. Either way, it’s a story for the grandkids.