Allegiant Air Baggage Fees

The Allegiant carry-on fee runs $10 to $75 per bag, per flight segment. It is not free on most fares. Allegiant is one of the few US carriers that charges for a full size carry-on at all.

The number that catches new flyers off guard is not the checked bag. It is the bag going into the overhead bin.

Allegiant publishes the range on its own baggage fees page. It prices every bag dynamically instead of in one flat table. Route, how many bags are already on the booking, and how far ahead you pay all move the Allegiant carry-on fee up or down.

A carry-on bought the day of the flight, at the gate, sits at the top of that range. The same bag added weeks in advance sits near the bottom.

Fees by bag, read the way Allegiant prices them

Allegiant does not publish one price per bag type. It publishes a range and a rule for how that range moves.

Every figure above comes from Allegiant’s own baggage fees page, read today. Allegiant does not publish separate flat prices for a first, second and third checked bag.

It runs every checked bag through the same route and timing calculator. A fixed per bag number would be accurate for one moment and wrong the next, so Allegiant skips the fixed number and prices live.

Why there is no fixed checked bag price

Most legacy carriers post one flat first bag fee and one flat second bag fee nationwide. Allegiant does not.

Its own fare notes state that bag prices vary by route, by bundle and by when you pay. The airport is always the most expensive place to add a bag.

That matches how Frontier prices bags on most fares. Frontier does publish more of a flat schedule than Allegiant does.

Prepay early, every time

Allegiant’s own guidance is blunt about this. Prices at the airport are higher than prices booked in advance.

The airline routes most of this through its Manage Travel tool rather than the initial booking page. A bag added right after booking usually beats the same bag added a week before departure.

A bag added at the gate, after check-in has closed, costs the most of all. If you know you are checking a bag or bringing a full carry-on, add it the moment you book.

Overweight and oversize, the two bands to know

Allegiant weighs and measures at the counter, and the bands are simple. A bag from 51 to 70 lb adds $50 on top of whatever the bag itself already cost.

A bag from 71 to 100 lb adds $75. Allegiant will not accept anything heavier than 100 lb at all.

A bag past 80 linear inches, length plus width plus height with wheels and handle included, adds another $75. That applies regardless of weight.

A digital luggage scale at home avoids both surprises before they reach the counter. The Etekcity digital luggage scale hooks onto a handle, lifts and reads the weight in seconds.

That matters most on a route where 50 lb is the line before the first surcharge band even starts. Check the overweight and oversize baggage fees guide for how other carriers set their own bands.

What actually waives the fee

Allegiant sells fare bundles that fold the carry-on fee and a checked bag into the ticket price. That bundle is the most reliable way to avoid paying for bags separately at booking.

Outside a bundle, Allegiant does not list a credit card or elite tier that waives the carry-on fee. It does not list one for a checked bag fee either, on its own baggage page. That is a real difference from several network carriers, some of which waive a first checked bag for a co branded cardholder.

Anyone counting on a card for a free bag on Allegiant should confirm current terms with the card issuer directly. Do not assume the same benefit a legacy airline card offers.

The full Allegiant Air baggage rules record covers the carry-on box, the personal item and how the sizer gets used at the gate. This page goes deeper on price alone.

The credit cards that cover baggage fees guide walks through which airline cards actually waive a bag. Some only earn points toward one instead. Read it before you count on a card at the counter.

How Allegiant compares to its nearest rivals

Against Frontier, both carriers charge for a full carry-on on most fares. That puts them in a small club among US airlines.

Frontier tends to publish a clearer flat schedule for checked bags by route. Allegiant’s dynamic pricing can land higher or lower depending on the day you book.

Spirit Airlines used the same paid carry-on model. It ceased operations on 2 May 2026 and no longer flies, so it is not a current comparison.

Allegiant and Frontier are now the two major US carriers where the carry-on itself is the fee to plan around. It is not just the checked bag.

Network carriers like Delta and American still fold a carry-on into every fare. They charge separately only for checked bags.

Comparing Allegiant’s total against one of those carriers only works once the carry-on fee is added to the ticket price. The checked bag fee alone is not the full picture.

The bottom line

The cheapest way to fly Allegiant with bags is to decide what you are bringing before you book. Add every bag in the same booking flow, and never wait for the airport.

Weigh anything close to 50 lb at home so the overweight bands never come into play. A bundle that covers the Allegiant carry-on fee and a checked bag for close to their separate cost is usually worth taking.

Check your bag against the size checker and run your route through the baggage cost tool before you ever pay at the gate. It beats finding out the price at the counter.

Read the exact carry-on box against the allowance above this page before you book. A bag that clears the sizer at home never becomes a gate fee later.

Pack light where you can and lean on a personal item that actually fits under the seat. The checked baggage weight limit guide is worth a look too, since a bag creeping toward 50 lb on the way home is an easy way to owe Allegiant twice on one trip.

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