George Bush Intercontinental Airport Wait Times & Departure Calculator
Real-time security waits, traffic conditions, and personalized departure times
⏱️ Detailed Wait Times for Airport
Typical wait times by time of day
📊 Estimated Security Wait Times by Time of Day
🅿️ Live parking at IAH
Updated2 of 5 lots reservation-only, 3 open
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Ecopark2 Covered Reservations only
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Ecopark Covered Reservations only
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Ecopark Uncovered 73% full · 1,515 spaces
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Terminals C, D & E 74% full · 1,644 spaces
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Terminals A & B 76% full · 997 spaces
From IAH's own parking system. Availability changes quickly; check signs on arrival.
🚗 Current Traffic Conditions
Peak traffic hours: 5am-8am and 4pm-7pm
💡 Pro tip: Use our calculator below to get real-time traffic from your exact location.
Customs on arrival at IAH
Typical passport-control wait is about 19 minutes. Busiest around 4 PM (~23 min). U.S. CBP data, last 90 days.
Customs wait for your landing time →Get Your Recommended Departure Time for IAH
Complete Guide to Airport Timing
George Bush Intercontinental Airport (IAH) is Houston's primary airport and a major United Airlines hub. Located 23 miles north of downtown Houston, IAH requires accounting for distance and Houston's heavy traffic when planning your arrival.
How Early Should I Arrive at IAH for a Domestic Flight?
Arrive 2 hours before departure for domestic flights. IAH's distance from Houston and 5 terminals require time for the drive, parking, security screening, and taking the Skyway train to your terminal. During peak hours, arrive earlier.
How Early Should I Arrive at IAH for an International Flight?
Arrive 3 hours before departure for international flights. Terminal D handles all international flights and can be especially busy. International check-in and security procedures require additional time.
When is IAH Most Busy?
IAH's busiest periods are 5am-8am and 4pm-7pm. Plan accordingly or fly during off-peak hours when possible.
How Much Time Should I Allow for Houston Traffic to IAH?
Traffic on I-45, I-69 (US-59), and Beltway 8 can add significant delays during Houston rush hour. From downtown Houston, allow 40-60 minutes during peak times. From The Woodlands, allow 30-45 minutes. Use our calculator for real-time traffic estimates.
Which IAH Terminal Should I Go To?
IAH has 5 terminals: A, B, C (United), D (international), and E (United, Southwest, others). United Airlines dominates with Terminals B, C, and E. All terminals are connected by the Skyway automated people mover—allow 5-10 minutes for transfers between terminals.
💡 Pro Tips for Airport
- ✓ IAH is 23 miles from downtown Houston - factor in longer drive time
- ✓ United Airlines dominates with Terminals B, C, and E
- ✓ Skyway train connects all terminals - allow 5-10 minutes for transfers
- ✓ Terminal D handles all international flights
- ✓ Houston traffic can be heavy - always check real-time conditions before leaving
Frequently Asked Questions
What are current IAH wait times?
The live IAH wait at the top of this page updates every few minutes from the airport's own checkpoint data. On a typical day, standard security takes about 20-30 minutes, and the busiest times are usually 5am-8am and 4pm-7pm.
How early should I arrive at IAH for a domestic flight?
Arrive 2 hours before your domestic flight departure. IAH's distance from Houston requires time for the drive (30-60 minutes from most locations), parking or drop-off (10-15 minutes), check-in and bag drop if needed (10-15 minutes), security screening, taking Skyway to your terminal if needed (5-10 minutes), and walking to your gate (5-10 minutes). United's flight banks create peak congestion periods.
How long does security take at IAH?
On a typical day, standard security at IAH takes about 20-30 minutes, longer at the busiest times (usually 5am-8am and 4pm-7pm). Check the live wait at the top of this page before you leave. Terminal D (international) can also have long lines before international flight departures. TSA PreCheck usually shortens your wait.
How far is IAH from downtown Houston?
IAH is located approximately 23 miles north of downtown Houston. In light traffic, the drive takes 25-30 minutes via I-45 or I-69. During rush hour (7-9am and 4-7pm), allow 45-60 minutes or more. Houston traffic can be unpredictable, especially on I-45 and Beltway 8. Always check real-time traffic conditions before leaving and build in extra buffer time.
Which IAH terminal should I go to?
Check your airline before leaving: United Airlines uses Terminals B, C, and E; Southwest uses Terminal A and E; most other domestic airlines use Terminal A; all international flights use Terminal D. The terminals are connected by the Skyway automated train system. If you park or arrive at the wrong terminal, use the Skyway to transfer - allow 10-15 minutes for the transfer including wait time.
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