Skip to content
CarrySizer
rules

Spirit Airlines Carry-On Rules: Fees & Free Bag Guide

Spirit Airlines personal item (18×14×8 in) is free. Overhead carry-on is a paid add-on at $37–99. How to avoid paying and when fees apply.

Spirit Airlines Carry-On Rules: Fees & Free Bag Guide

Spirit Airlines is an ultra-low-cost carrier (ULCC) that prices its base fare to exclude almost everything — including the overhead carry-on bag most travellers consider standard. Understanding exactly what's included, what costs extra, and how to minimise fees is the key to actually saving money when flying Spirit.

The short version: your personal item (under the seat) is free. The overhead carry-on is not.

What's Included for Free

Every Spirit Airlines passenger can bring one personal item at no extra charge:

  • Maximum dimensions: 18 × 14 × 8 inches (46 × 35 × 20 cm)
  • Where it goes: Under the seat in front of you
  • Weight: No published weight limit
  • Cost: Free on all fare types

Spirit's personal item allowance is actually quite generous by ULCC standards. At 18 × 14 × 8 inches, it's larger than Ryanair's free personal bag (40 × 20 × 25 cm equivalent) and fits a meaningful amount of clothing for a short trip. A well-organised 20-litre backpack, a laptop bag, or a large duffel can work within this dimension.

The Overhead Carry-On Fee

The overhead bin carry-on is Spirit's most significant ancillary fee for travellers:

When you buyTypical cost
During initial booking (online)$37–55
After booking, online (before check-in)$45–65
During online check-in$55–80
At the airport check-in counter$65–89
At the gate$99

These are ranges — exact prices vary by route, season, and demand. Short domestic routes are at the lower end; peak travel periods and popular routes cost more.

The most important rule: Never pay the gate fee. Buying your carry-on at the gate is consistently the most expensive option. If you know you need an overhead bag, buy it during initial booking for the lowest price.

Overhead Carry-On Size Limit

If you purchase overhead carry-on access, Spirit allows:

  • Maximum dimensions: 22 × 18 × 10 inches (56 × 46 × 25 cm)
  • Weight: 40 lbs (18 kg) maximum
  • Where it goes: Overhead bin

Spirit's overhead carry-on dimensions are actually larger than those of many competitors. The 22 × 18 × 10 inch (56 × 46 × 25 cm) envelope accommodates most standard carry-on suitcases.

How to Get a Free Carry-On on Spirit

There are several ways to avoid the overhead carry-on fee:

1. Spirit Free Spirit Credit Card

The Free Spirit Travel More World Elite Mastercard includes one free carry-on bag per flight for the primary cardholder. If you fly Spirit regularly, the annual fee can be offset by the carry-on savings alone — one or two round trips per year makes the card worthwhile.

Secondary cardholders and travelling companions do not receive the free carry-on through the credit card.

2. Big Front Seat

Spirit's Big Front Seat upgrade provides a wider, more comfortable seat (similar to domestic first class pitch) and includes one free carry-on bag. If you were planning to pay for both an upgrade and a carry-on, the Big Front Seat bundle is often the most cost-effective option.

Big Front Seat costs $12–199 per flight depending on route and availability.

3. Flight Flex or Bundle & Save

Spirit's Flight Flex bundle and Bundle & Save options sometimes include carry-on bag access. Check what's included in each bundle during booking — the bundled price can be cheaper than buying the carry-on separately.

4. Pack within the personal item limit

The most reliable way to avoid carry-on fees is to pack everything into the 18 × 14 × 8 inch personal item. For short weekend trips, this is achievable with compression packing and lightweight clothing choices.

What Happens If You Bring an Oversized Personal Item

If your personal item exceeds 18 × 14 × 8 inches:

  1. Spirit agents may check your bag at the gate
  2. You will be charged the gate carry-on fee ($99 typical)
  3. The bag will be placed in the overhead bin if space permits, or checked to the hold

Spirit agents do actively enforce personal item dimensions at busy gates. A bag that's clearly a carry-on suitcase presented as a "personal item" will be charged.

Spirit's Cost-Saving Strategy

Spirit's model is designed so that the base fare is very low, but travellers who add the same services that are included in competitors' fares (carry-on, checked bag, assigned seat) often end up paying a comparable or higher total price. The savings materialise for:

  • True carry-on-free travellers who genuinely fit everything in the personal item
  • Travellers using the Spirit credit card who receive free carry-on access
  • Infrequent travellers on short trips who can use the personal item envelope effectively

For anyone who routinely needs an overhead bag, Spirit's fees typically bring the total fare in line with or above legacy carriers on comparable routes. Run the total cost comparison including fees before booking.

Use the CarrySizer bag fit checker to verify your bag fits Spirit's personal item or carry-on dimensions before your trip.

Frequently asked questions

Is a carry-on bag free on Spirit Airlines?

No. Spirit Airlines charges for overhead carry-on bags. Only the personal item (18×14×8 in, under the seat) is free. Overhead bags cost $37–99 depending on when and how you buy.

What size personal item is free on Spirit Airlines?

Spirit Airlines allows one personal item up to 18×14×8 inches (46×35×20 cm) for free on all flights. It must fit under the seat in front of you.

How much does a carry-on cost on Spirit Airlines?

Spirit's carry-on fee ranges from $37 to $99 depending on the route, how far in advance you buy, and whether you buy online or at the airport. Buying at the airport is always the most expensive option.

Does the Spirit credit card include a free carry-on?

Yes. The Free Spirit Travel More World Elite Mastercard includes one free carry-on bag per flight for the primary cardholder.

Does Big Front Seat include a carry-on on Spirit?

Yes. Passengers who purchase Big Front Seat (Spirit's premium seat option) receive one free carry-on bag included.

Check if your bag fits

Use our free tool to check your carry-on dimensions against any airline.

Check my bag →

Rules can change. Always verify with your airline before flying.