Las Vegas is in a league of its own, and so is its airport. Flights take off on the hour throughout the year, driven by conventions, weekend trips, and large events. When flying out of Harry Reid International Airport (LAS), the wait time in the security line will be something you can prepare for.
Wait times at LAS can fluctuate. The same checkpoint can be empty in the morning but overcrowded after an hour due to overlapping flights. It is important to know how the entire security screening process takes place. The following information will help you understand the security process at LAS, peak wait times, and ways to shorten them.
How Security Is Organized at LAS
There are five security checkpoints at this airport: three in Terminal 1 and two in Terminal 3. Your choice of the checkpoint will depend on your airline, terminal, and gate location. Your airline’s check-in area will be a good indication of where you should go.
Every checkpoint follows the same TSA screening process, but crowds differ from one to the next. Some are busier because of the airlines that use them. Others have fewer lanes or serve a smaller group of departures at a given hour.
Checkpoint Opening Hours at Harry Reid
Checkpoints don’t all open at the same hour. At the airport, there’s a list of operating hours depending on the checkpoint. As opening hours may vary from season to season and day to day, make sure to consult the airport’s official website before your trip, especially if you have an early morning or late-night flight.
| Checkpoint | Operating Hours |
|---|---|
| A/B Checkpoint | 3:15 a.m. to 1 a.m. |
| C Annex Checkpoint | 3:05 a.m. to 10 p.m. |
| C/D Checkpoint | Open 24 hours |
You may need to walk to another checkpoint in case it’s closed, so plan on taking some extra time.
Are There Checkpoint Wait Times Available in Advance?
Yes. In April 2026, the airport reported that estimated TSA checkpoint wait times were going to be available on the airport’s official website. Previously, passengers didn’t have any choice but to rely on their intuition or estimates by third parties.
Additionally, the airport has also installed displays that provide wait times for security within Terminal 1\. A glance at these real-time figures before you head out from your hotel or vehicle will enable you to decide how much extra time to give yourself. The estimates are only rough, as wait times rise fast if multiple planes are boarding simultaneously.
How Long Is a Typical Wait?
A typical wait time cannot be assigned to LAS, as it varies by the time of day, week, month, and checkpoint itself. Independent websites offer different averages which may vary from one another. For example, one website offers 22 minutes as the average standard wait time, with 33 minutes at the busiest hours and 13 minutes during other hours. On another website, using PreCheck comparison, you will see 33 minutes for the standard wait compared to 13 minutes at PreCheck.
Please remember that all those data should be considered only as estimations and not promises. They are not official statistics and come from modeling or crowd reporting. The important fact is that the standard lane takes more time than the fast track.
When Are the Busiest Times for Security Checkpoints?
Timing is based on flight schedules. Passengers will come in waves before groups of flights, and there are many of them at LAS during the day. Most third parties note 6-9 AM and 4-7 PM as busy periods, while one other source mentions 5-8 AM and 4-7 PM as peak hours. The hours are different, but they all agree that mornings and afternoons are busier than other parts of the day.
There are some unique trends that only apply to Las Vegas. They are general travel patterns rather than guarantees, and you should always check the live wait times for your day of travel.
- Sunday and Monday departures: Many people choose to leave on those days since they come on weekends, and therefore lines can form.
- Holidays and special events: Big conventions, games, and extended holiday weekends can create very high traffic.
- Morning flights: A lot of travelers choose to take their flights in the morning.
If the Lines Are Usually Shorter
Mid-morning and early afternoons tend to be quieter times. A tracking website recommends between 5:00 and 6:00 AM and 2:00 to 4:00 PM. It is likely to be more peaceful during late evenings once the major departure periods are over.
There is no one answer to the ideal time to go through security, depending on your flight. However, you may use the above numbers as a general guideline. You must never cut down your arrival time at the airport due to the availability of the quiet periods.
How to Cut Down Your Waiting Time in the Lines
While you cannot influence how many people are ahead of you in line, you can always be ready to deal with them quickly. The following measures are likely to help you reduce your security line time considerably.
- Become a member of a reputable traveler program: TSA PreCheck members are normally allocated a fast track and may retain their shoes, belts, and light jackets while going through security.
- Try out CLEAR: It will assist in verifying your identity and may speed up your entry into the front of the line; however, you will still be screened by the TSA.
- Think security when packing: Ensure that you have kept your liquids according to TSA regulations and place your electronics in easily accessible areas.
- Remove your belongings earlier: Place your keys, mobile phone, and wallet in your carry-on bag before reaching the belt.
- Wear shoes and clothes that are simple to handle: Wear slip-on shoes and fewer metal objects to minimize delays in scanning.
- Check real-time waiting periods first: Check the airport website or the displays there to choose the appropriate time to go through.
How Early Should You Arrive?
The recommended time of arrival for a domestic flight is two hours, and three hours for an international flight. Other resources recommend 1.5 to 2 hours for domestic flights and 2.5 to 3 hours for international flights. If your trip involves checking baggage, returning a rented car, or traveling with kids, add some buffer. The Las Vegas traveler tends to be a packrat, so be sure to allow yourself plenty of time getting back from vacation.
Conclusion
Wait times at the security area at Harry Reid International Airport vary throughout the day, with no one number being able to apply to all the journeys. Wait times tend to be the longest during morning, evening, and weekends when there are events at the airport, while midmorning and early afternoon times are likely to be better. The most practical way to deal with it is to check out wait times online, come prepared, and arrive early enough.
Frequent flyers may also use programs such as TSA PreCheck that would save time during many flights. With a bit of planning and foresight, you would be able to pass the security checkpoint and then just relax until your departure time.
Frequently Asked Questions
LAS has five TSA checkpoints, with three located in Terminal 1 and two in Terminal 3. You will need to find which checkpoint to use based on which terminal and carrier you are flying with; look at your boarding pass.
Yes. LAS started posting TSA checkpoint wait times on its website in April 2026, as well as providing information at Terminal 1. They are estimated numbers, so allow some buffer in your schedule.
Shortest lines can generally be expected in mid- to late-morning and early afternoon, as well as in the evening hours. Early mornings and late afternoons tend to be the busiest periods, but this can vary by season and flight schedule. Always check wait times.
TSA PreCheck lines are available at LAS. Eligible travelers will typically go through security faster than regular passengers, but it depends on the specific checkpoint and time of day. Make sure you see PreCheck on your boarding pass.
The C/D Checkpoint is open 24 hours according to the airport’s website. Other checkpoints do not operate all day.