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George Bush Intercontinental Airport (IAH) delays and on-time record

Houston, Texas KIAH #15 US airport by passengers

Live airport-wide delay programs from the FAA, the weather that causes them, and how each airline has actually performed at IAH.

FAA status
No delays reported Updated 1 min ago
Weather now
VFR 71°F Observed 38 min ago
Late departures
26.6%May 2026 to July 2026
Security line
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FAA delay status for IAH

The FAA is not reporting a ground stop, ground delay program or other delay at IAH right now.

Source: FAA National Airspace System Status, checked 1 min ago. Airline-specific delays are not shown here.

Current conditions at IAH

VFR

71°F22°C

Good visibility and high cloud base. Normal operations are typical.

Wind
120° 8 mph
Visibility
10+ mi
Clouds
FEW 3,500 ft, BKN 9,500 ft, OVC 15,000 ft
Ceiling
9,500 ft
Pressure
30.03 inHg

METARMETAR KIAH 310053Z 12007KT 10SM FEW035 BKN095 OVC150 22/18 A3003 RMK AO2 SLP169 T02170178

Source: NOAA Aviation Weather Center. Observed 38 min ago.

On-time performance at IAH

Based on 30,252 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.

26.6%Departures late
23.8%Arrivals late
0.85%Cancelled
21.9 minAverage departure delay
On-time performance by airline at IAH
AirlineDeparturesLateCancelled
United Airlines 18,951 25.7% 0.31%
SkyWest Airlines 3,730 26.4% 0.56%
American Airlines 2,258 30.1% 1.99%
Delta Air Lines 2,217 24.2% 1.13%
Frontier Airlines 1,755 29.7% 2.62%
JetBlue Airways 355 52.7% 5.92%
Alaska Airlines 347 19.9% 0.29%
PSA Airlines 257 28.8% 7.39%
Envoy Air 250 36.0% 2.80%
Republic Airways 116 25.0% 4.31%

Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.

Late departures by month

AprMayJunJul

How delays work at IAH

A ground stop holds flights bound for IAH at their origin airports. A ground delay program spaces arrivals out so the airport is not overloaded. Departure and arrival delay messages describe the average wait the FAA expects. None of these tell you whether your own flight is late, so always check your airline as well.

Local tips

  • Summer thunderstorms and hurricane season (June to November) can cause delays and cancellations.
  • If you have a tight connection between terminals, the Subway (inside security) is the fastest way.
  • Allow extra time for the trip to or from downtown: Houston traffic is unpredictable.