The 3-1-1 rule on American Airlines is a TSA regulation designed to limit the amount of liquids, gels, and aerosols passengers can carry through airport security. This guideline by HolidayGlobes helps ensure safety while allowing travelers to bring essentials like toiletries and drinks in manageable quantities, all within specific limits.
What does the American Airlines 311 rule say?
The American Airlines 3-1-1 rule is a guideline from the TSA (Transportation Security Administration) that limits the amount of liquids, gels, and aerosols passengers can bring through airport security. Designed to enhance safety, it helps ensure that hazardous substances aren't carried on board in excessive amounts. While this AA 311 rule has been enforced strictly in the past, some airports are becoming more lenient with newer scanning technology.
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3.4 ounces (100 milliliters) is the maximum size for each container of liquid, gel, or aerosol.
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One quart-sized bag is required to hold all liquid, gel, and aerosol items.
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Each passenger is allowed one quart-sized bag.
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Larger quantities of liquids must be packed in checked luggage.
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The rule applies to liquids, aerosols, gels, creams, and pastes.
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New CT scanners at some airports allow for more lenient enforcement of the rule.
To get details on 3-1-1 rule of TSA, you can call American Airlines at 1-800-433-7300 or 1-888-595-2181.
How many free bags can you take on American Airlines?
When flying with American Airlines, the number of free bags you can take depends on several factors, such as your ticket class, frequent flyer status, and destination. Generally, passengers in AA basic economy classes are allowed 1 personal item, such as a small backpack or purse, but no checked bags are included in the fare. For AA standard economy tickets, the usual allowance includes 1 personal item and 1 carry-on bag, both free of charge. However, checked bags are not complimentary unless you meet certain conditions.
Premium cabin passengers, such as those flying in AA business or first class, receive a more generous baggage allowance. These travelers can check in up to two bags for free, with each bag typically allowed to weigh up to 50 pounds. Frequent flyers with elite status in American Airlines’ AAdvantage program may also receive additional benefits, such as one or more complimentary checked bags, depending on their tier. These pointers should be kept in mind before packing for your AA flight journey. This saves security check-in time and makes things run smoother for you.
Can I put liquids in my checked bag on American Airlines?
Yes, you absolutely can. The liquid rules you deal with at security don’t apply to checked bags. If you’re flying with American Airlines and want to pack full-size bottles—shampoo, conditioner, wine, mouthwash—go for it. The TSA doesn’t limit liquid volume in checked baggage.
That said, these are some rules under American Airlines liquids checked baggage you need to get right:
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Liquids must be sealed well. If something leaks and ruins your clothes or someone else’s bag, the airline won’t cover it.
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Aerosol cans are allowed but only if they’re non-flammable. Think deodorant or hairspray—not spray paint or bug killer. They should have caps and be tightly packed.
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Alcohol has its own rules. Nothing over 70% ABV is allowed (that rules out high-proof spirits). Anything between 24–70% ABV is limited to 5 liters per person. Wine and beer under 24% aren’t capped, but again—pack them well.
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No fuel, gasoline, paint thinner, bleach, or anything that is labeled corrosive or flammable. These are banned across the board.
If you're flying internationally, you also need to think beyond TSA. What’s allowed in your checked bag from the U.S. might get flagged or taxed at customs in your destination country. Some places even restrict liquids like cooking oil or cosmetics over a certain amount.
How strict is American Airlines with carry-on liquids?
Very. If you're traveling internationally, don’t expect any flexibility here. The American Airlines carry on liquid limit international is aligned with TSA’s standard 3-1-1 rule, and airport staff do enforce it. That means:
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Every fluid container to be 3.4 oz (100 ml) or less would work too.
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Everything has to fit inside: A single quart-sized, clear & resealable plastic bag.
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Only one such bag per passenger.
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It has to be pulled out and screened separately.
Exceptions to AA limits of liquids? Medications, baby formula, and breast milk. But those need to be declared. If you're flying via international hubs (especially in Europe or Asia) the security teams there will likely check your bag again. So do not try to sneak in oversized containers in the hopes of overlooking.
What is not allowed in a carry-on bag on American Airlines?
The list is not overly conundrum like, but people still might get tripped up. With American Airlines liquid carry on restrictions, anything over 3.4 oz is out—unless it's a medical exemption.
Here’s what’s definitely not allowed:
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Any full-sized liquid (water bottles, big perfumes, sauces).
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Flammable items like lighter fluid or paint.
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Open alcohol containers or duty-free bottles not sealed properly.
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Cleaning sprays or anything corrosive.
When unsure about an item, toss it in your checked bag or just leave it behind. Better safe than having it tossed at security.
Following the 3-1-1 rule helps speed up the security process and ensures compliance with safety standards. While the rule is generally strict, certain airports with advanced scanning technology may offer more flexibility. Know about the 3-1-1 restrictions ahead of time & make the airport experience smoother. For more clarification on the 311 subject, call HolidayGlobes at 1-800-433-7300 or 1-888-595-2181.
