PlainFlights

LAX vs IAH - 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
LAX

Los Angeles, CA

Los Angeles, California

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Airport B
IAH

Houston, TX

Houston, Texas

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Key Performance Metrics

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

Metric LAX IAH
On-Time Rate (higher is better) 82.8% 81.6%
Avg Delay (lower is better) 72.9 min 79.8 min
Delay Rate (lower is better) 17.2% 18.4%
Cancellation Rate (lower is better) 0.74% 1.13%
Total Flights 2,137,032 1,404,392
Delayed Flights 366,815 258,419
Cancelled Flights 15,795 15,858
Top Delay Cause Carrier Carrier

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

Delay Cause Breakdown

LAX - Los Angeles, CA

Carrier 41.7%
Late Aircraft 36.3%
NAS 18.5%
Weather 3.3%
Security 0.2%

IAH - Houston, TX

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

Top Routes

Top routes from LAX

Route Flights On-Time
LAX → SFO
San Francisco
63,553 78.7%
SFO → LAX
Los Angeles
63,540 82.9%
LAX → LAS
Las Vegas
55,240 78.9%
LAS → LAX
Los Angeles
55,149 79.4%
JFK → LAX
Los Angeles
53,628 81.3%
LAX → JFK
New York
53,619 81.8%

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%

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.