Los Angeles International Airport (LAX) is one of the world’s busiest airports with nine terminals and millions of passengers each year. From domestic flights to international ones, understanding the check-in process at LAX can make the difference between a stress-free and a stressful experience. From terminals to check-in options, security, and pro tips, this guide has you covered so you can arrive at your gate cool, calm, and collected.
Know Your Terminal
The most frequent source of confusion at LAX is just knowing which terminal to go to for which airline. When you receive your booking confirmation, please check your departure terminal; some airlines have several terminals, and some have moved because of the current terminal renovation program. Key points to note:
- Most international long-haul carriers are based at Tom Bradley International Terminal (TBIT / Terminal B). American Airlines’ main domestic hub is at Terminal 4.
- JetBlue has been moved from Terminal 5 to Terminal 1.
- Airside, there are connections between terminals 4, 6, 7, and 8, allowing passengers to transfer between compatible flights without passing through security again.
If you need to cross to another terminal, which isn’t on the airside, take advantage of the free LAX Shuttle (Route A), which runs a counter-clockwise loop around the Central Terminal Area, but remember that you’ll have to go through security again when you get back to the terminal.
Your Check-In Options at LAX Airport
There are three main ways to check in at LAX. Selecting the appropriate one for your journey can save you a lot of time at the airport.
1. Online & Mobile Check-In
The majority of airlines that fly from LAX have online check-in available 24 hours before the flight. You can reserve or confirm your seat, pay for any checked bags and get a digital boarding pass straight to your phone via your airline’s website or mobile app. If you don’t have checked bags, you can go directly to the TSA security checkpoint when you arrive, without going to the counter. This is the quickest and easiest choice for those who are only travelling by carry-on.
2. Self-Service Kiosks
There are self-service kiosks in the ticketing lobby on the upper level of each terminal at LAX. You scan your passport or government-issued ID at a kiosk, print your boarding pass and create bag tags if you are checking your luggage. Kiosks are particularly effective for travelers who want to have a physical boarding pass or require checking a bag — they generally save 20 to 30 minutes from having to stand in a full-service counter line.
3. Full-Service Counter Check-In
Passengers who require additional support services will still be able to go to the airline ticket counter: families traveling with young children or unaccompanied minors, passengers with accessible services needs, passengers traveling with pets, and passengers with special documentation needs. At the counter, agents can check travel documents, deal with unusual circumstances, and upgrade or adjust your travel plans. Even if you’ve checked in online, it’s possible that you will be asked to counter check-in for document verification when travelling internationally.
4. Off-Site & Curbside Check-In
A few airlines provide curbside check-in at the terminal curb on the Upper (Departures) Level, where you can drop off checked bags and collect your boarding pass without entering the terminal building. Also, for domestic flights, LAX’s off-site baggage check-in service (Baggage Airline Guest Services) lets passengers check bags at certain locations, such as LAX FlyAway bus stops and the Los Angeles Convention Center, for a $5 per-passenger charge, and bags are then sent directly to the aircraft.
Wait times at LAX are frequently much longer than the average during peak travel hours, which are typically early mornings, weekends, and public holidays. These times are when an additional 30 to 60 minutes is strongly recommended on arrival at the airport.
LAX Arrival Timing
Timing is absolutely critical when you’re flying out of an airport like LAX. This is the standard advice, recommended by LAX and the TSA alike:
| Flight Type | Recommended Arrival | Bag Check Deadline | Gate Arrival |
| Domestic | 2 hours before departure | 45–60 min before departure | 30 min before departure |
| International | 3–4 hours before departure | 2–3 hours before departure | 45 min before departure |
| International connection via LAX | Allow at least 3 hours between flights | Verify with the airline | 45 min before departure |
Getting Through TSA Security
Once a passenger has checked in and dropped off their bags, they will go to the TSA security screening. The average time spent at LAX during normal operations is between 20 and 30 minutes, but lines can be much longer during the early morning hours (5-9 a.m.) and evening hours (7-10 p.m.). Fortunately, there are several programs and services to speed you through the checkpoint.
TSA PreCheck
Shoes, belts & laptops remain on. Dedicated lanes at Terminals 1–7 & TBIT. Average waiting time: less than 15 minutes.
CLEAR+
Biometric identity verification – go to the front of the TSA lines. Available in Terminals 1, 3, 4, 6, 7 & TBIT.
LAX Fast Lane
Reservation of free time slots at Terminal 7. Make reservations ahead of time on the LAX website up to 3 days ahead of time.
Global Entry
For international arrivals: Customs clearance through kiosk in the U.S. with expedited processing. There are enrollment centers located near the airport.
Standard TSA screening is based on the well-known liquids/gels/aerosols rule: liquids, gels, and aerosols must be in a quart-sized clear plastic bag, and all liquids, gels, and aerosols must be 3.4 ounces or less. Shoes and electronics will not be allowed if not registered for TSA PreCheck. If you want to register before your next trip, you can register at the TSA PreCheck Enrollment Center in the baggage claim area on Level 1 of Terminal 1.
Pro Tips To Keep In Mind
There are a few practical tips that can go a long way at a large airport like LAX:
- Check in online as soon as the window opens (usually 24 hours before your flight), and choose your seat to save time waiting at the airport.
- Keep your boarding pass on the airline’s mobile app — this reduces the chance of losing a paper boarding pass and helps to reduce the time at the gate.
- Label bags with your name, destination, and phone number, and make sure that the bag tags are not for the next leg of a connecting route, but for your final destination.
- Be early rather than on time. Century Boulevard and the Central Terminal Area can be busy and unpredictable, particularly during rush hour. The LAX FlyAway bus service from Union Station, Van Nuys, and Westwood is a reliable transportation alternative to driving directly to LAX, and is not affected by traffic.
Families, passengers with disabilities, and unaccompanied minors should go straight to the airline counter for special assistance, documentation, and use of special security lanes at LAX.
Conclusion
Navigating through the check-in process in LAX does not need to be stressful. By following tips such as making online check-ins, knowing which terminal to use, arriving early, and using services such as TSA PreCheck and CLEAR+, you will be able to make smooth transitions within LAX without much difficulty. It is important for passengers to be aware that LAX is constantly evolving due to its modernization program; therefore, being informed by your airline as well as the LAX website (flylax.com) can never hurt either.
Frequently Asked Questions
The TSA and LAX both suggest arriving at least two hours before you depart for domestic flights. In busy travel times (early mornings, weekends, and during major holidays), an additional 30 to 60 minutes is recommended.
Yes. Most airlines at LAX have online and mobile app check-in options available 24 hours before the flight. Online check-in allows you to select or confirm your seat, pay for checked luggage, and receive a digital boarding pass.
TSA PreCheck is a U.S. government Trusted Traveler Program that provides access to expedited, dedicated security lanes. Shoes, belts, light jackets, and laptops are stored in the bag. PreCheck lanes are available at LAX in Terminals 1-7 and TBIT with an average wait of less than 15 minutes, compared to 20-30 minutes in standard lanes.
The majority of international long-haul carriers check in and depart from the Tom Bradley International Terminal (TBIT, also known as Terminal B), which is situated between Terminals 3 and 4.
When flying on the same airline or within the same airside connected terminal cluster, you can move between terminals without going through security again.