Your first flight is a series of steps that make sense once you see them in order. This checklist covers booking and fare rules, acceptable ID, baggage allowances, packing for security, getting through the airport, boarding, and what to expect once you are in the air.
Booking and fare rules
When you book, the fare type determines more than the ticket price. It dictates how many bags you can take, what seat you get, and how flexible the reservation is. Common fare types include basic economy, standard economy, and higher-tier options, but no two airlines name them the same way. Read the fare rules before you pay, and check the airline’s website for the breakdown of included bags and services.
Look for line items that show whether a carry-on, a checked bag, or only a personal item is included. Also note whether seat selection is automatic or an extra cost, and whether changes and cancellations are allowed. If you are planning a domestic trip, see the domestic travel checklist for a broader list of preparation tasks.
ID you will need
For a domestic flight, a valid photo ID such as a state-issued driver’s license or ID card is standard. Since REAL ID enforcement began in May 2025, a state license or ID card must be REAL ID compliant to be accepted at the Transportation Security Administration (TSA) checkpoint; a passport and other IDs on the TSA list also work. See the TSA Real ID page for guidance, and remember that this rule changes over time. Always check the current official TSA page and your airline before you travel.
TSA does not require children under 18 to show ID when traveling with an adult companion within the United States, though airlines can set their own rules for minors. For an international flight, a passport is required. Keep your passport in a safe place and be aware of passport processing times before you book a trip abroad.
Bags: what is included
Airlines commonly allow one personal item plus one carry-on in the cabin on standard fares, but that is not universal. Your personal item fits under the seat in front of you; your carry-on goes in the overhead bin. A checked bag travels in the cargo hold and usually costs extra unless your fare includes it.
Carry-on size limits vary by airline. A common standard is around 22 x 14 x 9 inches including wheels and handles. Checked bag allowances typically include a weight limit, so weigh your bag at home before you go. Do not pack a bag so heavy that you cannot lift it; you may need to lift it into the overhead bin yourself.
Keep valuable items, medication, and documents in your personal item. The airport essentials guide can help you decide what belongs within reach.
Packing for security
Security is easier when you pack with the rules in mind. Liquids, gels, and aerosols in your carry-on must follow the 3-1-1 rule: containers no larger than 3.4 ounces, all placed in a single quart-size clear bag, one bag per passenger. Use a clear quart-size bag so the screening officer can see the contents quickly. For a full explanation, see the TSA liquids rule explained and the official TSA liquids, aerosols and gels rule. Check the current TSA page and your airline’s bag policy before you pack.
Larger liquids, such as shampoos and conditioners, should go in checked baggage. Medically necessary liquids are handled differently, so check the official TSA page before your trip. Snacks are allowed, but solid foods like sandwiches, granola bars, and fruit are simpler at the checkpoint than pourable items.
Batteries have their own rules. Portable chargers, spare lithium batteries, and e-cigarettes must ride in carry-on baggage, not in checked bags. See the FAA PackSafe lithium battery page for the reasoning, and check power bank on a plane rules for a practical walkthrough. The general rule is to keep batteries in a padded case or original packaging to prevent short circuits. Also check your airline’s policy, since some airlines add their own limits.
Other restricted items include sharp objects, tools, and sporting goods. The TSA What Can I Bring page lets you search for an item by name. When in doubt, leave it out or check with the airline.
| Item | Carry-on | Checked bag | What to remember |
|---|---|---|---|
| Liquids | 3.4-ounce containers in one quart bag | Allowed | Follow the TSA liquids rule |
| Portable charger | Allowed | Not allowed | Keep batteries with you |
| Sharp objects | Not allowed | Allowed in most cases | Search the TSA What Can I Bring page |
| Solid food | Allowed | Allowed | Pack food that is not messy to inspect |
At the airport
Arrive early. A common rule of thumb is two hours before a domestic flight and three hours before an international flight, though busy airports and airlines may suggest more. Check your airline’s recommendation and allow extra time for traffic, parking, or transit.
Check in online before you leave for the airport, or use a self-service kiosk at the airport. If you are checking a bag, find the airline counter and drop it there. Keep your ID and boarding pass accessible for the next steps.
Look at the departure screens or your airline app to find your gate. Gates can change, so check again after you pass security. You do not need to rush to the gate immediately, but give yourself enough time to get there after security.
Security screening step by step
Security screening follows the same general flow at most airports. You will wait in line, have your ID and boarding pass checked, place items on the conveyor belt, walk through a scanner, and collect your belongings. Here are the basic steps:
Have your documents ready
Take out your ID and boarding pass before you reach the conveyor belt. You will need them for the officer at the ID check.
Prepare your carry-on
Remove your quart-size liquids bag and any large electronics from your carry-on. Put those items in a bin by themselves. If you are unsure which electronics need to be removed, check the airline or airport guidelines.
Follow the divest instructions
Officers and signs will tell you what to take off, such as jackets, belts, or bulky outer layers, and what can stay on. Procedures differ between lanes, so follow the instructions at your checkpoint. If you have metal jewelry or pocket items, put them in a tray or jacket pocket before walking through the scanner.
Walk through the scanner
Follow the officer’s directions. You may need to go through a metal detector or a body scanner. Take a moment to get moving once you are through so the line stays smooth.
Collect your belongings
Watch your items on the conveyor belt and place them back in your carry-on at the table. Check that you have all bins and personal items before you leave the screening area. You can sit and repack more calmly after the crowded checkpoint.
Boarding and on board
Boarding groups are printed on your boarding pass. Wait for your group to be called, and have your boarding pass and ID ready. When you step on the plane, find your seat number. Stow a small backpack or handbag under the seat in front of you, and put larger carry-ons overhead, wheels first.
On board, the flight attendants will demonstrate safety procedures. Follow the announcements: seatbelts must be fastened when the seatbelt sign is on, tray tables must be stowed for takeoff and landing, and seatbacks must be upright. You can ask a flight attendant if you are unsure about anything.
Expect changes in cabin pressure and some movement. You may feel fullness in your ears during climb and descent; swallowing, chewing gum, or yawning can help. If you are nervous, tell a flight attendant and focus on slow breathing. You are in good hands.
FAQ
How early should I arrive at the airport?
A common rule of thumb is two hours before a domestic flight and three hours before an international flight. Check your airline’s recommendation, as specific airports and peak travel days can change the advice.
What ID do I need for a domestic flight?
A state-issued driver’s license or ID card works if it is REAL ID compliant; a passport is another accepted option. Check the TSA Real ID page to see whether your license meets the requirement, and check the current rule before you travel.
Can I bring an empty water bottle through security?
Yes. Empty bottles are allowed through the checkpoint, and you can fill them at a water fountain or bottle filling station after you pass security. Just make sure the bottle is empty when you reach the screening belt.
Do power banks go in carry-on or checked baggage?
Portable chargers and spare lithium batteries go in carry-on baggage only. Checked baggage restrictions cover lithium batteries because of fire risk. See the power bank on a plane rules guide for more details.
Your first flight is a sequence of simple tasks. When you understand fare rules, bring the right ID, pack with security in mind, and follow the airport signs, you will be prepared. Use this checklist before you go, and check your airline’s website for anything specific to your route.
