What is Allegiant Air's personal item size limit?

Allegiant Air allows a personal item up to 45 × 35 × 20 cm.

Does Allegiant Air's baggage allowance change by fare?

Yes. Allegiant Air has multiple published fare or option allowances. Select the option that matches your booking when using the checker.

Do wheels and handles count in Allegiant Air's bag dimensions?

Measure the complete packed bag, including wheels, handles and external pockets. The bag may need to fit fully inside an airport sizer.

Airline baggage guide

Allegiant Air baggage allowance guide

Compare Allegiant Air's personal-item, cabin and checked-baggage rules, review fare options, then test your own measurements before you reach the airport.

Personal item

45 × 35 × 20 cm

Cabin bag

55 × 40 × 25 cm

No published universal weight limit.

Checked baggage

At or under 203 cm total

Max weight: 22 kg

Oversized and specialist baggage

Allegiant Air applies separate rules to sports equipment, mobility items and other specialist baggage. Booking, fees, packaging and weight limits can vary by item.

View oversized baggage guide

Allowance by fare or option

Fare or option	Description	Personal item	Cabin bag	Checked baggage	Weight guidance
All fares	Allowance varies by booking option.	45 × 35 × 20 cm	Not listed	Not published	Check booking
Purchased entitlement	Allowance varies by booking option.	Not listed	55 × 40 × 25 cm	At or under 203 cm total	Checked: 22 kg

Your selected fare or add-on may change what is included. Use the checker option that matches your booking.

Check your bag against Allegiant Air

Before you fly with Allegiant Air

Official Allegiant baggage contracts verified 1 August 2026; rules configured in 03_Airline Rules.

Your Allegiant Air allowance varies by fare or purchased option. Match the checker selection to your booking.

Airline staff may require the bag to fit completely inside a rigid airport sizer.

Allegiant Air baggage allowance summary

Use this quick guide to compare your bag against Allegiant Air's published cabin bag and personal item limits. The WillitFit checker is designed to help travellers spot oversize bags before they reach the gate.

Cabin bag size: 55 × 40 × 25 cm
Personal item size: 45 × 35 × 20 cm; Usually stored under the seat in front.

Before you pack

Measure the packed bag, not the empty manufacturer size. Bulging pockets, handles and wheels can affect whether the bag fits the sizer.

At the airport

Keep documents, liquids and electronics easy to reach so you do not need to open and repack your bag during security or boarding.

If your bag is close

A close result means there may be little tolerance. Use the checker, reduce soft contents where possible, and confirm the latest rules with the airline.