Allegiant Carry-On Liquid Rules & Restrictions Explained

If you’re planning a flight with Allegiant Air and want to know how much lotion, shampoo, or your favorite face mist you can bring on board, you’ve come to the correct place. I had to break down all of the rules using trusted sources so that you wouldn’t be trapped at the security level. For any immediate questions, you can contact Allegiant Air at +1 (855) 510-7629.

Allegiant’s Policy in a Nutshell

Allegiant does not breach the TSA 3-1-1 rule regarding carry-on liquids. Small liquids, gels, creams, sprays, pastes, and lotions up to 3.4 ounces (100 milliliters) can be packed in a carry-on bag.

All of those containers should be enough to fit into one clear, resealable, quart-size plastic bag (often a zip-top bag), and you are permitted to bring one bag for each passenger.
You will need to remove that zip bag at the security screening to have it checked individually.
Anything more than 3.4 oz/100 ml must be stowed in checked luggage, unless an exception applies.

In brief, small containers, a single transparent bag, and separate screening.

Exceptions & Special Cases

Considering the real world is increasingly squishier than the theoretical, the following are additional guidelines to keep in mind:

Baby goods and formula, including breast milk: It is possible to transport adequate amounts of breast milk, infant formula, and water for small children, even if they weigh more than 3.4 oz. Only notify and announce the TSA personnel at the time of screening.
Liquids duty-free: If you purchase liquids after leaving security (for example, in duty-free stores), they can be carried on board as long as they are in a bag with a tamper-proof seal and the receipt. However, if you have an in-between flight (especially one that is overseas), you may be required to redo the security check at the next airport.
Hazardous or flammable liquids: According to normal TSA/airline restrictions, these are not permitted in carry-on (flammable aerosols, certain chemicals, and so on). Allegiant’s policy recognizes that certain products are not permitted.

For clarification about what is or isn’t allowed, you can reach Allegiant Air directly at +1 (855) 510-7629.

Why These Rules Exist & What Happens If You Don’t Follow Them

The primary reason is safety. The TSA’s 3-1-1 protocol is designed to reduce the threat of cabin liquids. Allegiant, a United States-based airline, follows the usual carry-on regulations listed below.

If you do not comply:
TSA agents have the authority to seize your liquids at the security checkpoint.
There may be delays, requiring you to repack or discard noncompliant materials.
In the worst-case scenario, you could miss your flight if you are significantly delayed. So it’s best to play it safe.

Tips & Best Practices for Packing Your Liquids

This is what I would personally do (according to the sources).
Bring travel-sized bottles of your toiletries (3.4 oz / 100 ml or less).
Put them all in a quart-sized plastic zip bag and set it at the top of your carry-on bag for easy removal during screening.
If you are carrying any duty-free liquids, keep the receipt and store them in the tamper-evident bag until boarding.
In the case of baby products or critical drugs that exceed the limit, notify the security personnel so that they are aware of what you are carrying.
Do not transport dangerous or flammable liquids. Ensure that your aerosol sprays, for example, are not flammable and are not labeled as poisonous or toxic.
Check your containers twice: bottles marketed as travel sizes may be larger than 100 ml, but they are still considered travel sizes.

FAQ—Your Quick Questions Answered

Q: Can I bring a full 500 ml shampoo in my carry-on?
Ans: No. More than 100 ml / 3.4 oz of baggage must be checked (unless specified otherwise).

Q: How many liquid containers can I carry?
Ans: The maximum number of containers is 100 ml for each container; however, they must all be stored in a clear resealable bag that holds 100 ml or one quart.

Q: What about hand sanitizers, gels, or creams?
Ans: These are treated like any other gel or liquid. They must be in 100 mL quantities in the quart bag.

Q: Is the 100 ml limit strict?
Ans: Yes, TSA and Allegiant apply such a per-container limit. When you offer them a 110 ml jar, there is a good probability you will be requested to destroy or verify it.

Q: What if I have more liquids but I’ve checked baggage?
Ans: Containers bigger than 100 ml may be transported in checked luggage, but they must comply with checked bag requirements.

Q: Can I bring baby formula or breast milk above 100 ml?
Ans: Yes, as long as the amount is sufficient to cover the cost of the flight. In any situation, make the security guard informed.

Q: Are duty-free liquids allowed?
Ans: Yes, when they are in tamper-evident bags with receipts, but be aware that you may have to be additionally screened for the connecting flights.

Final Thoughts

Taking liquids on board does not have to be difficult, but it is only possible if you are aware of the restrictions ahead of time. Allegiant Air follows the 3-1-1 rule (3.4 oz / 100 ml, 1 quart bag, one per passenger); however, it is crucial to understand the exceptions, and one should always be prepared at the security checkpoint. The fact that the toiletries come in a little zip bag will save you a lot of time at the checkout.

For the latest updates or assistance with carry-on rules, you can contact Allegiant Air support at +1 (855) 510-7629.