Quick Answer: What Is Allegiant Baggage Policy?
Allegiant allows every passenger to bring one personal item free. The personal item must not exceed 8 x 14 x 18 inches and must fit under the seat. Carry-on bags and checked bags cost extra. A paid carry-on must not exceed 10 x 16 x 22 inches, while checked bags can weigh up to 50 lbs and measure up to 80 linear inches.
Allegiant Baggage Rules at a Glance
| Bag Type | Size / Weight Limit | Where It Goes | Fee |
|---|---|---|---|
| Personal item | 8 x 14 x 18 inches | Under the seat | Free |
| Carry-on bag | 10 x 16 x 22 inches | Overhead bin | Paid |
| Checked bag | Up to 50 lbs and 80 linear inches | Checked baggage | Paid |
| Overweight checked bag | 51–70 lbs or 71–100 lbs | Checked baggage | Extra fee |
| Oversized checked bag | Over 80 linear inches | Checked baggage | Extra fee |
| Gate-checked bag | Depends on reason | Gate / baggage hold | May cost extra |
Allegiant charges baggage fees by route and segment. A segment means one takeoff and one landing.
Allegiant Personal Item Policy
Every Allegiant passenger gets one free personal item.
The Allegiant personal item size limit is:
| Item | Maximum Size |
|---|---|
| Personal item | 8 x 14 x 18 inches |
The item must fit completely under the seat in front of you.
Examples of personal items include:
- Small backpack
- Purse
- Laptop bag
- Briefcase
- Small camera bag
- Small food container
- Small tote bag
A personal item is the only free bag included with a standard Allegiant ticket.
✈️FlyingTip: Use a soft-sided backpack instead of a hard suitcase. Soft bags are easier to compress and more likely to fit under the seat if they are close to the size limit.
What Does Not Count as a Personal Item?
These items are usually too large to count as a free personal item:
- Standard carry-on suitcase
- Large hiking backpack
- Large duffel bag
- Rolling cabin bag
- Large tote that does not fit under the seat
If your bag does not fit the personal item size limit, Allegiant may treat it as a paid carry-on or oversized personal item.
Check Allegiant baggage fee calculator
Does Allegiant Measure Personal Items?
Yes. Allegiant may verify personal items before boarding.
If your bag fits inside the sizer without forcing it, it should usually travel as your free personal item. If it is too large, you may have to pay an at-airport baggage fee. Allegiant lists oversized personal item fees from $50 to $75.
Allegiant Carry-On Baggage Policy
The Allegiant Airlines carry-on bags are not free unless they are included in your selected bundle or travel option.
The Allegiant carry-on size limit is:
| Item | Maximum Size |
|---|---|
| Carry-on bag | 10 x 16 x 22 inches |
This size includes wheels, handles, pockets, and decorations.
A carry-on bag is stored in the overhead bin. Allegiant says each passenger may bring up to two cabin bags total:
- One personal item
- One carry-on bag
Carry-on bag fees range from $10 to $75, depending on route and when the bag is added.
For bundle comparison, read Allegiant Bundle vs Add-Ons.

Personal Item vs Carry-On Bag
| Feature | Personal Item | Carry-On Bag |
|---|---|---|
| Included free | Yes | No |
| Size | 8 x 14 x 18 inches | 10 x 16 x 22 inches |
| Storage | Under the seat | Overhead bin |
| Best for | Short trips | More packing space |
| Fee risk | Only if oversized | Paid bag fee applies |
If you are taking a short trip, a personal item may be enough. If you need a roller bag or larger backpack, buy a carry-on before travel day.
Allegiant Checked Baggage Policy
Allegiant checked bags cost extra and are priced by route and segment.
Standard checked bag limits are:
| Checked Bag Rule | Limit |
|---|---|
| Weight | Up to 50 lbs |
| Size | Up to 80 linear inches |
| Number of checked bags | Up to 4 per passenger on Allegiant’s current fee page |
Linear inches means:
Length + width + height
The 80-inch limit includes wheels, handles, pockets, and decorations.
Allegiant Checked Bag Fees
Allegiant does not use one flat checked bag fee for every route. Checked bag prices depend on:
- Route
- Segment
- When the bag is added
- Number of bags
- Whether the bag is overweight or oversized
- Whether the bag is added online or at the airport
Allegiant recommends pre-purchasing bags because baggage fees are usually cheaper before airport arrival.
Allegiant Overweight and Oversized Bag Fees
The Allegiant charges extra if your checked bag is too heavy or too large.
| Bag Issue | Extra Fee |
|---|---|
| 51–70 lbs | $50 |
| 71–100 lbs | $75 |
| Over 80 linear inches | $75 |
| Oversized personal item | $50–$75 |
| Gate-checked bag | $0–$75, depending on reason |
Checked bags over 100 lbs may not be accepted, except for certain special items allowed under Allegiant’s rules.
Gate-Checked Bags on Allegiant
Allegiant may gate-check a bag if:
- Your personal item is too large
- Your carry-on is oversized
- Overhead bin space is limited
- You bring a stroller or car seat to the gate
Baggage fees do not apply to car seats, strollers, mobility aids, or assistive devices. But oversized personal items and excess carry-on bags may be charged at the airport.
When Should You Buy Bags on Allegiant?
Buy baggage during booking or before your travel day if you know you need it.
You should add bags early if:
- You need a carry-on
- You are checking luggage
- You are traveling with family
- You are flying round trip
- You want to avoid airport pricing
- You are unsure your personal item will fit
Waiting until the airport can cost more.
For online trip updates check Allegiant Manage Booking.

Allegiant Baggage Rules for Families
Allegiant does not charge baggage fees for certain child and accessibility items.
Free items may include:
- Car seats
- Strollers
- Mobility aids
- Assistive devices
These items may be checked at the counter or gate, depending on airport handling and Allegiant staff instructions.
Families should still keep essentials like medication, documents, baby food, and valuables in the personal item or carry-on.
Allegiant Sports Equipment and Special Items
Allegiant may accept sports equipment and special items, but extra fees can apply.
Airlines says sporting equipment measuring 126 linear inches or less may not incur an oversize baggage charge, and sports equipment weighing 70 lbs or less may not incur an excess weight baggage fee. Musical instruments have separate weight rules.
Because special items vary, check Allegiant’s rules before bringing:
- Golf clubs
- Skis
- Snowboards
- Fishing equipment
- Scuba equipment
- Musical instruments
- Bicycles
- Oversized sports gear
Do not assume a special item follows normal checked bag rules.
What Not to Pack in Checked Bags
Keep these with you:
- Passport
- ID
- Medication
- Phone
- Laptop
- Chargers
- Wallet
- Keys
- Jewelry
- Travel documents
- Spare lithium batteries
- E-cigarettes or vaping devices
Allegiant says certain electronics with lithium batteries, medication, and keys should be kept with the passenger and not packed in checked baggage.
TSA Liquid Rules Still Apply
Allegiant baggage rules do not replace TSA security rules.
For carry-on bags, liquids, gels, and aerosols must follow the TSA 3-1-1 rule:
- 3.4 oz / 100 ml containers
- One quart-size clear bag
- One bag per passenger
Medication, baby formula, baby food, and certain medical liquids may be allowed with proper declaration at security.
How to Avoid Allegiant Baggage Fees
To reduce baggage costs:
- Travel with only the free personal item.
- Measure your bag before leaving home.
- Use a soft-sided under-seat bag.
- Do not overpack the personal item.
- Buy carry-on or checked bags before the airport.
- Weigh checked bags at home.
- Keep checked bags under 50 lbs.
- Keep checked bags under 80 linear inches.
- Compare bundle pricing before buying add-ons.
- Keep valuables and documents in your personal item.
For short trips, the cheapest Allegiant baggage strategy is simple: pack everything into the free personal item. To redem trip flex read here.
Allegiant Baggage Checklist Before You Fly
Before your Allegiant flight:
- Confirm your personal item is 8 x 14 x 18 inches or smaller.
- Confirm your carry-on is 10 x 16 x 22 inches or smaller.
- Add paid bags before airport arrival.
- Check your route-based baggage fee.
- Weigh checked bags.
- Measure checked bags.
- Keep lithium batteries out of checked luggage.
- Put medication and documents in your personal item.
- Arrive early if checking bags.
- Save your baggage receipt.
Final Thoughts
Allegiant’s baggage policy is simple if you separate the three bag types. One personal item is free. Carry-on bags cost extra. Checked bags cost extra and must stay within 50 lbs and 80 linear inches.
The easiest way to save money is to pack light, measure your bag, and buy baggage before the airport if you need more space.
Need help checking Allegiant baggage fees, carry-on rules, bundles, or booking options? Call Flying Getaway at +1 (646) 814-6001 before confirming your trip.
Frequently Asked Questions
What is Allegiant baggage policy?
Allegiant allows one free personal item per passenger. Carry-on bags and checked bags cost extra. Personal items must fit under the seat, carry-ons go in the overhead bin, and checked bags must follow weight and size limits.
What is the Allegiant personal item size?
The Allegiant personal item size limit is 8 x 14 x 18 inches. The item must fit completely under the seat in front of you.
Does Allegiant allow a free carry-on?
No. Allegiant does not include a free carry-on bag with a standard ticket. Carry-on bags cost extra unless included in your selected bundle or purchase option.
What is Allegiant’s carry-on size?
The Allegiant carry-on size limit is 10 x 16 x 22 inches, including wheels, handles, pockets, and decorations.
How much does Allegiant charge for carry-on bags?
Allegiant lists carry-on bag fees from $10 to $75. The exact price depends on route and when the bag is added.
What is Allegiant’s checked bag weight limit?
Allegiant checked bags can weigh up to 50 lbs without overweight fees. Bags from 51–70 lbs add $50, and bags from 71–100 lbs add $75.
What is Allegiant’s checked bag size limit?
Allegiant checked bags can measure up to 80 linear inches. Linear inches means length plus width plus height.
Are Allegiant baggage fees refundable?
Allegiant says baggage fees are generally non-refundable unless the bag is lost or the itinerary qualifies for cancellation without penalty under an exception.
Is it cheaper to add Allegiant bags online?
Yes. Allegiant recommends pre-purchasing baggage, and airport baggage fees are usually higher than online baggage prices.
What happens if my Allegiant personal item is too big?
If your personal item is too large, Allegiant may charge an at-airport baggage fee and treat the item as a paid carry-on or oversized personal item.

Patrick Walker is the travel brain behind Flying Getaway. With a knack for spotting flight deals and a passion for exploring new skies, he helps travelers fly smarter and save more with every trip.





