You can't bring weapons, large liquids, flammable items, explosives, corrosives, or many tools and sharp objects (knives, large scissors, tools like hammers/drills) in your carry-on, as they pose security risks; items like firearms, pepper spray, large aerosols, lighters (except one), and hoverboards are generally banned entirely, while liquids, gels, and aerosols (LAGs) must be in small containers (<100ml) within a clear bag.
You are not allowed to bring the following items in your small bag or hand baggage:
The airport 45-minute rule is a common airline policy, especially for domestic flights, requiring passengers to complete check-in and drop off checked bags at least 45 minutes before departure, ensuring enough time for security and boarding; missing this deadline can lead to denied boarding or having your luggage left behind, even if you checked in online, as the bag drop deadline isn't waived. This rule is a minimum, and airlines often recommend arriving even earlier, especially at busy airports, as delays can occur.
The primary reason is passenger safety and aircraft security. Bad guys could substitute the tooth paste for an incindiary or explosive compound. Also, for the same reason, you are limited to only bringing 3 ounces (US) of personal hygiene products, toothpaste being one of those items.
The most confiscated items at airports are usually everyday items people forget about, primarily oversized liquids, aerosols, and gels (LAGs), along with knives, sharp objects (like scissors, multi-tools), and lighters, due to carry-on restrictions, with firearms also frequently found in checked bags despite strict rules. Batteries (especially lithium) are also common, needing to be in carry-ons, and even items like protein powder can be flagged for extra screening.
Portable chargers or power banks containing a lithium ion battery must be packed in carry-on bags. Spare lithium batteries, which include both power banks and phone chargers, are prohibited in checked luggage.
The "45-minute rule" refers to a productivity technique of working intensely for 45 minutes, followed by a 10-15 minute break, leveraging the brain's natural focus cycles (ultradian rhythms) to prevent burnout and boost efficiency, though it can also refer to airline check-in deadlines or corporate onboarding targets. The work/rest pattern helps maintain concentration, while the airport rule requires check-in 45 mins pre-flight for domestic flights.
You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.
Medically required liquids will be subject to additional screening that could include being asked to open the container. You can bring your medication in pill or solid form in unlimited amounts as long as it is screened. You can travel with your medication in both carry-on and checked baggage.
Yes, you can bring deodorant on a plane. Stick and solid deodorants are allowed in your carry-on luggage without restrictions. Spray, gel and liquid deodorants over 3.4 ounces need to be packed in your checked baggage.
It's generally better to check in online as it saves significant time, lets you secure seats and manage documents digitally, and offers protection against overbooking; however, checking in at the airport might be preferable if you need to ask about upgrades or have specific issues, or if you prefer the personal touch, though it's often slower. For most travelers, especially those with just carry-on, online check-in lets you skip the counter and go straight to security, making it the more efficient choice.
Remember, you should arrive 2 hours early for domestic (within the US) flights and 3 hours early for international flights. This is important especially if you need to check a bag; there is a cutoff time and they will not accept bags after the deadline.
Missed flight due to short layover
If you missed your connecting flight due to a short layover, the airline will book you on the next flight free of charge as long as the connecting flight is part of the same ticket.
Charging cables (USB cords) and plug-in power adapters for phones do not contain batteries or hazardous components, so they are allowed in both cabin hand luggage and checked baggage.
Passengers can now keep liquids in their hand luggage or cabin bag when flying from the majority of UK airports. While the 100ml limit remains at most airports, there is no longer a requirement to put bottles and containers in a clear plastic bag - or remove them from your bags at security.
Empty pockets, and remove jackets and belts. Put these in the tray. When packing your tray put heaviest items, like bags, on top. Make sure there's nothing spilling out the edges of your tray.
During travel
Travellers should carry a copy of their prescription together with a covering letter from their doctor. If supplies are needed whilst abroad, a pharmacy or health care provider should be consulted for advice.
Top 10 Travel Etiquette Tips
As per the guidelines, all carry-on liquids, gels, and aerosols must be in containers of 3.4 oz (100ml) or less, packed in one clear quart-size bag.
The Transportation Security Administration (TSA) doesn't ask you to keep your medicines in their original prescription bottles. But each state may have its own rules. If you aren't bringing your medicine in its original bottle, bring a copy of the prescription or a letter from your doctor.
You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item.
The general rule of thumb is to arrive at the airport two hours early if it's a domestic flight, and three hours if it's international. During the holiday season and other peak travel times, you may want to give yourself even more time to get through the lines!
Yes, checking in online is definitely worth it. It saves time at the airport, lets you select a seat (if not already assigned), and often allows you to pay for upgrades. It also ensures you won't risk losing your seat if the flight is oversold and can expedite your journey through security.
You can bring your bags to the baggage drop-off counter as early as 4 hours prior to your flight's departure.