Route · IAH → SNA · 2020–2025 BTS data
Houston to Santa Ana
The IAH–SNA corridor (Houston, TX → Santa Ana, CA) runs ahead of the national average, served by 1 carrier across roughly 1,346 miles.
Data updated 2026-06-13
- 84.6%
- On-time
- +5.6 pts
- vs US avg
- 62 min
- Delay when late
- 6,837
- Flights
Cancelled
1.1%
Best Month
Dec 2025 97%
Worst Month
Jul 2024 64%
Distance
1,346 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 93 | 3 | 0 | 0 | UA |
| Nov 2025 | 89 | 13 | 0 | 2 | UA |
| Oct 2025 | 93 | 12 | 0 | 1 | UA |
| Sep 2025 | 90 | 11 | 0 | 0 | UA |
| Aug 2025 | 93 | 14 | 0 | 4 | UA |
| Jul 2025 | 93 | 18 | 2 | 1 | UA |
| Jun 2025 | 90 | 18 | 0 | 4 | UA |
| May 2025 | 93 | 21 | 0 | 2 | UA |
| Apr 2025 | 90 | 11 | 0 | 0 | UA |
| Mar 2025 | 117 | 12 | 0 | 0 | UA |
| Feb 2025 | 108 | 10 | 0 | 0 | UA |
| Jan 2025 | 120 | 18 | 5 | 0 | UA |
| Dec 2024 | 118 | 22 | 0 | 4 | UA |
| Nov 2024 | 89 | 10 | 0 | 0 | UA |
| Oct 2024 | 93 | 9 | 0 | 1 | UA |
| Sep 2024 | 90 | 9 | 1 | 1 | UA |
| Aug 2024 | 111 | 15 | 0 | 3 | UA |
| Jul 2024 | 124 | 45 | 11 | 1 | UA |
| Jun 2024 | 120 | 37 | 0 | 3 | UA |
| May 2024 | 102 | 35 | 3 | 1 | UA |
| Apr 2024 | 90 | 17 | 0 | 0 | UA |
| Mar 2024 | 118 | 23 | 0 | 1 | UA |
| Feb 2024 | 112 | 22 | 0 | 0 | UA |
| Jan 2024 | 113 | 23 | 4 | 1 | UA |
Cancellation Rate
1.1%
26 of 2,449 flights
Diversion Rate
1.2%
30 of 2,449 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Origin airport →SNA - Santa Ana
Full on-time, delay-cause, and seasonal performance for Santa Ana, CA.
Destination airport →Compare the two airports
See IAH and SNA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAH–SNA.
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What the Data Says About IAH to SNA
Bureau of Transportation Statistics records show Houston to Santa Ana (IAH to SNA) running a 84.6% on-time rate over 6,837 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 61.7 minutes. The 1,346-mile corridor is served by 1 carrier, and over the last 24 months 1.1% of 2,449 flights were cancelled, 1.2% diverted.
The monthly split is wide on this route: Dec 2025 posted the strongest performance at 97% on-time, while Jul 2024 came in at just 64% - a 33-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.