PlainFlights
IAH

Houston, TX

Houston, Texas

Data coverage: 2020 — 2024

Total Flights

1,169,873

On-Time Rate

82.2%

Avg Delay

79.1 min

Delayed

207,761

Cancelled

14,345

Delay Causes

Top delay cause: Carrier

Late Aircraft 34.4%
Carrier 39.8%
NAS (National Aviation System) 17.2%
Weather 8.5%
Security 0.1%

Monthly Performance

Recent 24 months of flight data.

Period Flights Dep Delayed Arr Delayed Cancelled Diverted
Dec 2024 19,151 2,306 1,997 113 30
Nov 2024 19,156 1,488 1,321 21 11
Oct 2024 20,455 1,463 1,179 52 12
Sep 2024 19,013 1,577 1,319 56 16
Aug 2024 20,560 2,525 2,078 151 43
Jul 2024 20,771 4,033 3,377 800 39
Jun 2024 20,054 3,098 2,434 134 47
May 2024 20,250 3,684 3,135 340 39
Apr 2024 18,575 2,000 1,667 43 27
Mar 2024 19,114 2,218 1,846 61 27
Feb 2024 16,930 1,193 1,028 21 15
Jan 2024 17,872 2,150 1,974 562 32
Dec 2023 18,151 1,383 1,209 7 18
Nov 2023 18,043 1,152 1,175 4 3
Oct 2023 19,850 1,608 1,456 43 9
Sep 2023 18,560 1,845 1,615 52 20
Aug 2023 19,566 1,972 1,732 90 30
Jul 2023 19,550 2,948 2,605 187 47
Jun 2023 18,776 2,900 2,408 298 46
May 2023 18,790 2,492 2,046 153 19
Apr 2023 17,506 2,386 2,238 126 33
Mar 2023 19,455 2,389 2,417 55 25
Feb 2023 17,301 1,738 1,779 68 17
Jan 2023 18,243 2,346 2,218 117 33

Top Routes

Busiest routes to and from IAH.

Route Flights On-Time Distance
IAH (Houston) → DFW (Dallas/Fort Worth) 24,366 77.1% 224 mi
DFW (Dallas/Fort Worth) → IAH (Houston) 24,362 77.8% 224 mi
IAH (Houston) → DEN (Denver) 23,411 80.2% 862 mi
DEN (Denver) → IAH (Houston) 23,398 76.9% 862 mi
IAH (Houston) → LAX (Los Angeles) 22,713 83.4% 1,379 mi
LAX (Los Angeles) → IAH (Houston) 22,707 86.6% 1,379 mi
IAH (Houston) → ORD (Chicago) 22,119 82.1% 925 mi
ORD (Chicago) → IAH (Houston) 22,050 82.1% 925 mi
ATL (Atlanta) → IAH (Houston) 21,563 80.7% 689 mi
IAH (Houston) → ATL (Atlanta) 21,556 81.5% 689 mi
LAS (Las Vegas) → IAH (Houston) 18,225 81.8% 1,222 mi
IAH (Houston) → LAS (Las Vegas) 18,217 80.2% 1,222 mi
IAH (Houston) → LGA (New York) 17,192 80.7% 1,416 mi
LGA (New York) → IAH (Houston) 17,191 83.4% 1,416 mi
IAH (Houston) → MCO (Orlando) 16,990 78.5% 854 mi
MCO (Orlando) → IAH (Houston) 16,990 79.6% 854 mi
EWR (Newark) → IAH (Houston) 16,194 78.9% 1,400 mi
IAH (Houston) → EWR (Newark) 16,175 77.4% 1,400 mi
MSY (New Orleans) → IAH (Houston) 15,063 84.7% 305 mi
IAH (Houston) → MSY (New Orleans) 15,040 81.7% 305 mi
Data Source: Bureau of Transportation Statistics, On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.