TSA Security Checkpoints
Complete checkpoint guide for United Airlines terminals at all 7 domestic hubs. Standard, Pre✓, CLEAR, and Priority lane availability — hours, tips, and which checkpoint to use.
ORD — Chicago O'Hare International
Terminal 1 (Concourses B & C) · United Express regional flights from Terminal 2 (Concourses E & F)
| Checkpoint | Hours | Lanes |
|---|---|---|
| Checkpoint 1 (CP1) Terminal 1 | 4:00 AM – 8:30 PM | Standard Pre✓ CLEAR |
| Checkpoint 2 (CP2) Terminal 1 | 4:15 AM – 8:30 PM Pre✓: 4:00 AM – 8:30 PM | Standard Pre✓ CLEAR |
| Checkpoint 3 (CP3) Terminal 1 | 4:00 AM – 6:00 PM | Standard Pre✓ CLEAR |
DEN — Denver International
Concourse B (via Jeppesen Terminal) · All passengers clear security in the main terminal before taking the train to Concourse B
| Checkpoint | Hours | Lanes |
|---|---|---|
| East Security Jeppesen Terminal | 4:00 AM – 8:45 PM | Standard Pre✓ CLEAR |
| West Security Jeppesen Terminal | 4:00 AM – 8:45 PM | Standard Pre✓ CLEAR |
| Bridge Security Jeppesen Terminal | 4:30 AM – 6:00 PM | Standard Pre✓ CLEAR |
IAH — George Bush Intercontinental
Terminal C (domestic) & Terminal E (international) · Terminal C serves most United domestic flights; Terminal E handles international departures
| Checkpoint | Hours | Lanes |
|---|---|---|
| Terminal C North Terminal C | 4:00 AM – 10:00 PM | Standard Pre✓ CLEAR |
| Terminal C South Terminal C | 4:00 AM – 7:30 PM | Standard Pre✓ CLEAR |
| Terminal E Terminal E | 4:00 AM – 12:00 AM Pre✓: 4:00 AM – 8:00 PM | Standard Pre✓ CLEAR |
EWR — Newark Liberty International
Terminal C & Terminal A · Terminal C is United's primary hub. The new Terminal A (opened 2023) handles some United flights
| Checkpoint | Hours | Lanes |
|---|---|---|
| Terminal C Main Terminal C | 24 hours | Standard Pre✓ CLEAR Priority |
| Terminal C North Satellite Terminal C | Variable (peak hours) Pre✓: Variable | Standard Pre✓ CLEAR |
| Terminal A Terminal A | 24 hours | Standard Pre✓ CLEAR |
SFO — San Francisco International
Terminal 3 (domestic) & International Terminal G · Terminal 3 serves United domestic; International Terminal boarding area G serves United international
| Checkpoint | Hours | Lanes |
|---|---|---|
| Terminal 3 Checkpoint Terminal 3 | 4:00 AM – 11:00 PM Pre✓: 4:00 AM – 10:00 PM | Standard Pre✓ CLEAR |
| International Terminal (G Gates) International Terminal | 24 hours Pre✓: 4:30 AM – 10:00 PM | Standard Pre✓ CLEAR |
IAD — Washington Dulles International
Main Terminal (shared facility) · All airlines share the main terminal. United uses Concourses C and D (via AeroTrain)
| Checkpoint | Hours | Lanes |
|---|---|---|
| East Checkpoint Main Terminal | 3:45 AM – 10:30 PM Pre✓: 4:30 AM – 9:00 PM | Standard Pre✓ CLEAR |
| West Checkpoint Main Terminal | 4:45 AM – 9:00 PM Pre✓: 4:30 AM – 9:00 PM | Standard Pre✓ CLEAR |
LAX — Los Angeles International
Terminals 7 & 8 · United uses a shared security checkpoint at Terminal 7 serving both Terminals 7 and 8
| Checkpoint | Hours | Lanes |
|---|---|---|
| Terminal 7 Checkpoint Terminal 7 | 4:00 AM – 12:00 AM Pre✓: 4:00 AM – 10:30 PM | Standard Pre✓ CLEAR |
Frequently Asked Questions
Which TSA checkpoint should I use for United at ORD?
United Airlines operates from Terminal 1 at O'Hare. Checkpoint 2 (CP2) is recommended — it has both TSA Pre✓ and CLEAR lanes, and is open from 4:15 AM to 8:30 PM. If you don't have Pre✓ or CLEAR, CP1 and CP3 serve standard lanes.
Does United's terminal at O'Hare have TSA PreCheck?
Yes. TSA PreCheck is available at Checkpoint 2 (CP2) in Terminal 1, open from 4:00 AM to 8:30 PM. United Express passengers using Terminal 2 can access Pre✓ at Checkpoint 5 (CP5).
Is CLEAR available at United's O'Hare terminal?
Yes. CLEAR+ lanes are available at Checkpoints 1 and 2 in Terminal 1, operating from 4:30 AM to 8:00 PM. CLEAR is also available in Terminals 2 and 5.
Which TSA checkpoint is best for United at Denver?
United operates from Concourse B at DEN, but all passengers clear security in the main Jeppesen Terminal first. East and West Security checkpoints both have Pre✓ and CLEAR lanes. Pick whichever has the shorter line — both provide access to all concourses via the underground train.
Does Denver airport have TSA PreCheck for United flights?
Yes. Both East and West Security checkpoints in the Jeppesen Terminal have TSA PreCheck lanes, open from 4:00 AM to 8:45 PM. Bridge Security does not have Pre✓.
Is CLEAR available at Denver airport?
Yes. CLEAR+ lanes are available at East Security, West Security, and Bridge Security checkpoints. CLEAR at Bridge Security operates from 4:30 AM to 6:00 PM.
Which TSA checkpoint should I use for United at IAH?
For domestic United flights, use Terminal C North — it has TSA Pre✓ and CLEAR, open until 10 PM. Terminal C South is standard lanes only and closes at 7:30 PM. For international flights, Terminal E has Pre✓ until 8 PM.
Does United at Houston IAH have TSA PreCheck?
Yes. TSA PreCheck is available at Terminal C North (open until 10 PM) and Terminal E (open until 8 PM). Terminal C South does not have Pre✓ lanes.
Is CLEAR available at United's IAH terminals?
CLEAR is available at Terminal C North only. Hours are Sunday–Friday 4:00 AM – 7:00 PM and Saturday 4:00 AM – 6:00 PM. Terminal E does not have CLEAR.
Which TSA checkpoint should I use for United at Newark?
Terminal C Main is United's primary checkpoint at EWR — it's the only one with Standard, Pre✓, CLEAR, and Priority lanes, and it's open 24 hours. For shorter lines during peak hours, check if the Terminal C North Satellite checkpoint is open.
Does Newark Terminal C have TSA PreCheck?
Yes. TSA PreCheck is available 24/7 at Terminal C Main, with two dedicated lanes. The North Satellite checkpoint also has a Pre✓ lane when open. Terminal A has Pre✓ 24/7 as well.
Is CLEAR available at United's Newark terminal?
Yes. CLEAR+ lanes are available at Terminal C Main from 4:00 AM to 10:00 PM, and at Terminal A from 4:30 AM to 8:00 PM (7:00 PM Saturdays).
Which TSA checkpoint should I use for United at SFO?
United domestic flights use Terminal 3 — the main checkpoint has Pre✓ and CLEAR lanes. For international flights, use the International Terminal checkpoint (boarding area G). Both terminals are connected airside.
Does SFO have TSA PreCheck for United flights?
Yes. TSA PreCheck is available at Terminal 3 (4:00 AM – 10:00 PM) and the International Terminal (4:30 AM – 10:00 PM).
Is CLEAR available at SFO for United passengers?
Yes. CLEAR+ lanes are at Terminal 3 (4:00 AM – 10:00 PM) and the International Terminal (7:00 AM – 10:00 PM). Note CLEAR opens 3 hours later at the International Terminal.
Which TSA checkpoint should I use for United at Dulles?
Dulles has East and West checkpoints in the main terminal — both have Pre✓ and CLEAR. Choose whichever has the shorter line. The East Checkpoint opens an hour earlier (3:45 AM vs 4:45 AM).
Does Dulles have TSA PreCheck for United flights?
Yes. Both East and West checkpoints have TSA PreCheck lanes, available from 4:30 AM to 9:00 PM.
Is CLEAR available at Dulles airport?
Yes. CLEAR+ lanes are at both East and West checkpoints, open from 4:30 AM to 9:30 PM. CLEAR kiosks are located near each checkpoint on the Departures level.
Which TSA checkpoint does United use at LAX?
United uses the Terminal 7 checkpoint, which serves both Terminals 7 and 8. It's a 12-lane checkpoint open from 4:00 AM to midnight. Pre✓, CLEAR, and the free LAX Fast Lane are all available.
Does LAX have TSA PreCheck for United flights?
Yes. TSA PreCheck lanes are available at the Terminal 7 checkpoint from 4:00 AM to 10:30 PM.
Is CLEAR available at United's LAX terminal?
Yes. CLEAR+ lanes are at the Terminal 7 checkpoint from 4:00 AM to 10:30 PM.