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IAH vs BRO - Airport Comparison

Select two airports to compare on-time performance, delays, cancellations, and top routes using U.S. Department of Transportation Bureau of Transportation Statistics (BTS) data (2020–2025) across all 50 states. See our methodology for how metrics are computed.

Airport A
IAH

Houston, TX

Houston, Texas

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Airport B
BRO

Brownsville, TX

Brownsville, Texas

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Key Performance Metrics

BTS on-time performance data, 2020–2025 cumulative.

Metric IAH BRO
On-Time Rate (higher is better) 81.6% 85.7%
Avg Delay (lower is better) 79.8 min 82.9 min
Delay Rate (lower is better) 18.4% 14.3%
Cancellation Rate (lower is better) 1.13% 1.42%
Total Flights 1,404,392 18,838
Delayed Flights 258,419 2,695
Cancelled Flights 15,858 268
Top Delay Cause Carrier Carrier

✓ / ▲ indicates the more favorable value. Data: BTS On-Time Performance, 2020–2025.

Delay Cause Breakdown

IAH - Houston, TX

Carrier 38.4%
Late Aircraft 34.9%
NAS 18.1%
Weather 8.6%
Security 0.0%

BRO - Brownsville, TX

Carrier 38.9%
Late Aircraft 29.0%
Weather 17.9%
NAS 14.0%
Security 0.2%

Top Routes

Top routes from IAH

Route Flights On-Time
IAH → DFW
Dallas/Fort Worth
30,197 76.6%
DFW → IAH
Houston
30,188 76.3%
IAH → LAX
Los Angeles
28,113 83.4%
LAX → IAH
Houston
28,102 86.2%
IAH → DEN
Denver
27,947 80%
IAH → ORD
Chicago
27,946 81%

Top routes from BRO

Route Flights On-Time
DFW → BRO
Brownsville
7,887 83.8%
BRO → DFW
Dallas/Fort Worth
7,882 84.2%
IAH → BRO
Brownsville
1,384 88.2%
BRO → IAH
Houston
1,381 91.2%

Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) On-time rates exclude cancelled and diverted flights. PlainFlights is not affiliated with BTS or the DOT

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This tool queries live on-time, delay, and cancellation figures for the two selected airports from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.