Route · IAH → SMF · 2020–2025 BTS data
Houston to Sacramento
The IAH–SMF corridor (Houston, TX → Sacramento, CA) runs behind the national average, served by 5 carriers across roughly 1,609 miles.
Data updated 2026-06-13
- 78.8%
- On-time
- -0.2 pts
- vs US avg
- 70 min
- Delay when late
- 2,923
- Flights
Cancelled
0.9%
Best Month
Apr 2025 88%
Worst Month
Jul 2024 53%
Distance
1,609 mi
Carriers
5
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 45 | 10 | 0 | 1 | UA |
| Nov 2025 | 60 | 10 | 0 | 0 | UA |
| Oct 2025 | 55 | 14 | 0 | 0 | UA |
| Sep 2025 | 58 | 10 | 0 | 0 | UA |
| Aug 2025 | 60 | 16 | 0 | 0 | UA |
| Jul 2025 | 61 | 14 | 0 | 0 | UA |
| Jun 2025 | 60 | 19 | 1 | 0 | UA |
| May 2025 | 59 | 11 | 0 | 0 | UA |
| Apr 2025 | 56 | 7 | 0 | 0 | UA |
| Mar 2025 | 54 | 12 | 0 | 1 | UA |
| Feb 2025 | 50 | 7 | 0 | 0 | UA |
| Jan 2025 | 49 | 17 | 1 | 0 | UA |
| Dec 2024 | 44 | 13 | 1 | 0 | UA |
| Nov 2024 | 50 | 9 | 0 | 0 | UA |
| Oct 2024 | 54 | 15 | 0 | 0 | UA |
| Sep 2024 | 54 | 12 | 0 | 0 | UA |
| Aug 2024 | 59 | 13 | 0 | 0 | UA |
| Jul 2024 | 58 | 27 | 3 | 0 | UA |
| Jun 2024 | 60 | 18 | 0 | 0 | UA |
| May 2024 | 61 | 28 | 0 | 0 | UA |
| Apr 2024 | 30 | 8 | 0 | 1 | UA |
| Mar 2024 | 31 | 7 | 0 | 0 | UA |
| Jan 2024 | 31 | 12 | 5 | 0 | UA |
| Dec 2023 | 31 | 1 | 0 | 0 | UA |
Cancellation Rate
0.9%
11 of 1,230 flights
Diversion Rate
0.2%
3 of 1,230 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 →SMF - Sacramento
Full on-time, delay-cause, and seasonal performance for Sacramento, CA.
Destination airport →Compare the two airports
See IAH and SMF 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–SMF.
Routes with a similar on-time rate
What the Data Says About IAH to SMF
2,923 tracked flights put the IAH to SMF pairing (Houston to Sacramento) at a 78.8% on-time rate, squarely in line with the wider network. Delays that do occur run 70.0 minutes on average. Across the 1,609-mile route and its 5 carriers, the trailing 24 months show 0.9% cancelled and 0.2% diverted (1,230 flights sampled).
The monthly split is wide on this route: Apr 2025 posted the strongest performance at 88% on-time, while Jul 2024 came in at just 53% - a 34-point swing worth factoring into travel timing.
Frequently Asked Questions
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Flight Guides
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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.