
Traveling by plane is always exciting, but packing liquids can be tricky because of airport rules. If you’re a Filipino traveler getting ready for your next trip with Trip.com, this easy guide will help you understand how to bring liquids on a plane without any problems. This way, you can get through airport security quickly and start your journey stress-free.
Why Are There Restrictions on Liquids?

Airports have rules about carrying liquids to keep everyone safe during flights. These rules were made because, in the past, there were security threats where harmful liquids were used to cause danger on planes. To stop this from happening again, airports around the world agreed to limit how much liquid passengers can bring and how it should be packed.
By controlling the size and packaging of liquids, security officers can easily check what people are carrying and make sure nothing dangerous gets on the plane. This helps protect passengers, crew, and the airplane itself.
Even though it might feel a bit strict, these rules are there to make sure you and everyone else can travel safely.
The 3-1-1 Rule for Carry-On Liquids

When you travel with liquids in your carry-on bag, the most important rule to remember is the 3-1-1 rule. This helps airport security quickly check your items and keep everyone safe. Here’s what it means:
- 3: Each container you bring must be 3.4 ounces or less, which is about 100 milliliters. So, your shampoo, lotion, or any other liquid must be in a small bottle. If the container is bigger, even if it’s not full, it won’t be allowed.
- 1: All these small containers must fit inside one clear, resealable plastic bag. This bag is usually about 1 liter or 1 quart in size — similar to a sandwich or ziplock bag you can see through. This helps the security officers easily look inside without opening every bottle.
- 1: Each passenger can only bring one of these plastic bags with liquids in their carry-on luggage. This means you can’t bring two or three bags full of small bottles — just one bag.
This 3-1-1 rule covers not only liquids like water or juice but also gels, creams, pastes, and aerosols. Things like toothpaste, hair gel, sunscreen, and perfume all fall under this rule.
Examples of Liquids Covered by the Rules

Here’s a quick look at liquids you need to pack carefully for your flight. Things like drinks, perfume, toothpaste, sunscreen, hair gel, and eye drops all have to be in small bottles (100 ml or less) and fit inside one clear plastic bag. Following these simple rules makes going through airport security easier and stress-free.
Type of Liquid | Examples | Notes |
---|---|---|
Drinks | Water, juice, coffee, soda | Only if you bring them from outside security. Drinks bought inside are allowed. |
Fragrances | Perfumes, colognes | Small bottles only, must fit in the clear bag. |
Oral Care | Toothpaste, mouthwash | Must be in containers 100 ml or less. |
Skincare & Makeup | Foundation, sunscreen, moisturizer | Creams and lotions are included here. |
Hair Products | Hair gel, hair spray | Aerosols and gels must follow the size rule. |
Eye Care | Contact lens solution, eye drops | Allowed in small bottles, fit inside the bag. |
Tips for Packing Liquids as a Filipino Traveler

1. Use Travel-Sized Containers
Get small bottles or containers that hold 100 ml or less. You can buy these at local shops or airport stores here in the Philippines. Always check the size so you don’t run into trouble at security.
2. Bring a Clear, Resealable Plastic Bag
Put all your liquids in a clear ziplock or resealable bag. Make sure it’s easy to open because security officers will ask to see it, especially at busy airports like Manila’s NAIA.
3. Know What to Declare
Some liquids, like baby formula, breast milk, or medicine, don’t have to follow the 3-1-1 rule but you need to tell security about them. Keep these items handy and let the officers know to avoid delays.
4. Check Your Airline’s Policies
Different airlines can have their own rules about liquids. When you book your flight on Trip.com, take a moment to check your airline’s policies or call their customer service if you’re unsure.
5. Pack Liquids in Checked Luggage if Possible
If you have bigger bottles or more liquids than allowed, put them in your checked baggage instead. This helps you avoid having them taken away at security.
6. Buy Duty-Free Liquids After Security
If you want to buy perfume, alcohol, or other liquids at the airport, wait until after you pass through security. That way, you can bring them on board without problems.
Common Mistakes to Avoid

Common Mistake | Why It’s a Problem | How to Avoid It |
---|---|---|
Packing liquids in non-transparent bags | Security officers can’t see inside easily, causing delays or extra checks. | Always use a clear, resealable plastic bag. |
Carrying containers larger than 100 ml in carry-on | Larger containers are not allowed and will be taken away at security. | Use travel-sized bottles of 100 ml or less. |
Forgetting to declare important liquids | Items like medicine, baby formula, or breast milk need special permission to carry. | Keep these items handy and tell security officers. |
Not removing the liquid bag during screening | Security staff need to inspect your liquids separately; not removing it slows the process. | Take out your liquid bag before the screening line. |
Overpacking more than one liquid bag | Only one clear bag is allowed per passenger; more than one causes confusion and delays. | Combine all liquids into one clear, resealable bag. |
What Happens at the Security Check?

1. Get Ready Before the Line
Before you get in line, take out your clear plastic bag with all your liquids from your carry-on bag. This makes the process faster.
2. Place Liquids in a Separate Tray
When you reach the security scanner, put your clear bag with liquids into a separate tray or bin. This tray goes through the X-ray machine by itself.
3. Put Your Carry-On Bag on the Conveyor
After taking out your liquids, place your carry-on bag on the conveyor belt to go through the scanner.
4. Wait for Security to Check
Security officers will look at the X-ray images and check your liquids bag to make sure everything follows the rules (small bottles, one clear bag).
5. If Your Liquids Are Okay
If everything meets the rules, you can collect your liquids and carry-on bag after the scanner.
6. If Liquids Don’t Follow the Rules
If you have liquids that are too big or not packed properly, security may take those items away.
7. Follow Instructions
Listen to any instructions from the security officers to keep the process smooth and quick.
Special Notes for Filipino Travelers Flying Internationally

Sources: Wikipedia
- Airports in the Philippines, like NAIA, follow international safety rules (ICAO standards) for carrying liquids.
- Different countries and airports may have slightly different liquid rules.
- If you have connecting flights, check the liquid rules for each airport you’ll visit.
- You might need to go through security and follow liquid restrictions again during layovers.
- Use Trip.com’s travel alerts and guides to get the latest info on airport rules before you travel.
- Being prepared helps your trip go smoothly without surprises.
Make Your Travel Stress-Free

Sources: Wikipedia
By knowing and following the rules for carrying liquids, Filipino travelers can skip common airport problems and enjoy their trips more. Whether you’re flying within the Philippines or going abroad, packing your liquids the right way makes traveling easier and less stressful.
When you book your next flight on Trip.com, travel with confidence knowing you’re ready for airport security. Pack smart and have a hassle-free journey!
FAQ: Rules for Carrying Liquids on a Plane
How much liquid am I allowed to bring in my carry-on?
Each container must be 100 ml (3.4 ounces) or less, and all containers must fit inside one clear, resealable plastic bag of about 1 liter in size.Can I bring baby formula, breast milk, or medicine?
Yes, these are allowed even if they are over 100 ml, but you must declare them at security and have them ready for inspection.What happens if I bring liquids larger than 100 ml?
Liquids larger than 100 ml in your carry-on may be taken away by airport security. It’s better to pack larger liquids in your checked luggage.Do the liquid rules apply to all airports I travel through?
Most airports follow similar rules, but some may have slight differences. Always check the rules of each airport, especially if you have connecting flights.Can I bring more than one clear plastic bag with liquids?
No, only one clear resealable plastic bag is allowed per passenger in carry-on luggage.