Spirit Airlines Baggage Weight Limits: Fees, Size & Travel Tips
Traveling with Spirit Airlines can be affordable if you clearly understand its baggage weight limits, size rules, and fees. Spirit follows an ultra-low-cost model, which means your ticket usually covers only the seat most baggage options come at an extra cost. This guide explains Spirit Airlines baggage weight limits in simple terms and shares practical tips to help you avoid surprise charges at the airport.
Spirit Airlines Carry-On Baggage Weight & Size
Spirit allows one personal item for free with every ticket. This must fit completely under the seat in front of you.
Personal item size limit:
Maximum dimensions: 18 x 14 x 8 inches (45 x 35 x 20 cm)
Examples include a small backpack, laptop bag, or purse. Spirit does not specify a weight limit for personal items, but it must fit in the sizer.
If you bring a carry-on bag, it is not free and must be purchased separately.
Carry-on bag size limit:
Maximum dimensions: 22 x 18 x 10 inches (56 x 46 x 25 cm)
There is no published carry-on weight limit, but the bag must fit in the overhead bin without assistance.
Spirit Airlines Checked Baggage Weight Limits
Checked bags on Spirit are strictly regulated by weight and size.
Standard checked bag weight limit:
Up to 40 lbs (18 kg)
This is lower than many airlines that allow 50 lbs, so it’s important to weigh your bag before arriving at the airport.
Checked bag size limit:
Maximum linear dimensions (length + width + height): 62 inches (158 cm)
Spirit Airlines Baggage Fees (Weight-Based)
Spirit charges fees based on when you add baggage and how much it weighs.
Standard Checked Bag Fees (Up to 40 lbs)
Cheapest when booked during ticket purchase
More expensive if added later
Most expensive at the airport counter
Overweight Bag Fees
41–50 lbs: Additional fee
51–100 lbs: Higher overweight fee
Bags over 100 lbs are not accepted
Overweight fees can be costly, sometimes exceeding the original ticket price, so packing smart is essential.
Spirit Airlines Carry-On Fees
Carry-on bags are optional but always paid:
Lowest price when added during booking
Higher fees if purchased online later
Highest fees at the airport
Travelers who frequently fly Spirit often save money by purchasing carry-on baggage early.
Special Items & Exceptions
Infant items (strollers and car seats) are usually checked free
Medical devices do not count toward baggage limits
Sports equipment may have special size and weight rules
Always check specific item policies before travel.
Smart Travel Tips to Avoid Extra Fees
Weigh your bag at home
Use a digital luggage scale to ensure your checked bag stays under 40 lbs.Prepay baggage online
Buying baggage during booking is the cheapest option.Use a compliant personal item
Choose a backpack that fits Spirit’s free personal item size to skip carry-on fees.Pack lighter items in layers
Wear heavier clothing instead of packing it.Split weight between bags
Two lighter bags may be cheaper than one overweight bag.Double-check airport rules
Gate agents strictly enforce size limits, and oversized bags are charged immediately.
Final Thoughts
Spirit Airlines can be a great budget option if you understand its baggage weight limits and fees. The key takeaway is simple: 40 lbs is the standard checked baggage limit, carry-ons cost extra, and paying in advance saves money. By packing wisely and following Spirit’s size rules, you can enjoy low fares without unexpected baggage charges.

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