Route · SLC → IAH · 2020–2025 BTS data
Salt Lake City to Houston
The SLC–IAH corridor (Salt Lake City, UT → Houston, TX) runs ahead of the national average, served by 20 carriers across roughly 1,195 miles.
Data updated 2026-06-13
- 82.7%
- On-time
- +3.7 pts
- vs US avg
- 77 min
- Delay when late
- 12,780
- Flights
Cancelled
1.1%
Best Month
Feb 2024 94%
Worst Month
Jul 2025 71%
Distance
1,195 mi
Carriers
20
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 184 | 21 | 2 | 0 | DL,UA |
| Nov 2025 | 137 | 19 | 0 | 0 | OO,UA,DL |
| Oct 2025 | 146 | 16 | 1 | 0 | OO,UA,DL |
| Sep 2025 | 161 | 14 | 0 | 0 | UA,DL |
| Aug 2025 | 160 | 36 | 1 | 1 | OO,UA,DL |
| Jul 2025 | 154 | 44 | 1 | 3 | DL,OO,UA |
| Jun 2025 | 150 | 28 | 2 | 1 | DL,OO,UA |
| May 2025 | 149 | 33 | 0 | 1 | DL,UA |
| Apr 2025 | 176 | 29 | 0 | 0 | DL,UA |
| Mar 2025 | 207 | 32 | 0 | 0 | DL,OO,UA |
| Feb 2025 | 174 | 30 | 0 | 0 | OO,UA,DL |
| Jan 2025 | 179 | 26 | 8 | 1 | OO,UA,DL |
| Dec 2024 | 172 | 38 | 1 | 2 | DL,OO,UA |
| Nov 2024 | 136 | 25 | 1 | 1 | OO,UA,DL |
| Oct 2024 | 170 | 16 | 0 | 1 | UA,OO,DL |
| Sep 2024 | 173 | 21 | 1 | 0 | UA,DL |
| Aug 2024 | 160 | 25 | 3 | 0 | DL,OO,UA |
| Jul 2024 | 152 | 34 | 12 | 0 | DL,OO,UA |
| Jun 2024 | 152 | 35 | 1 | 1 | DL,OO,UA |
| May 2024 | 151 | 35 | 5 | 2 | DL,OO,UA |
| Apr 2024 | 150 | 32 | 0 | 1 | DL,OO,UA |
| Mar 2024 | 210 | 38 | 1 | 0 | DL,OO,UA |
| Feb 2024 | 177 | 11 | 0 | 0 | DL,OO,UA |
| Jan 2024 | 185 | 40 | 5 | 2 | DL,OO,UA |
Cancellation Rate
1.1%
45 of 3,965 flights
Diversion Rate
0.4%
17 of 3,965 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Origin airport →IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Destination airport →Compare the two airports
See SLC and IAH side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–IAH.
Routes with a similar on-time rate
What the Data Says About SLC to IAH
Bureau of Transportation Statistics records show Salt Lake City to Houston (SLC to IAH) running a 82.7% on-time rate over 12,780 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 77.3 minutes. The 1,195-mile corridor is served by 20 carriers, and over the last 24 months 1.1% of 3,965 flights were cancelled, 0.4% diverted.
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 94% on-time, while Jul 2025 came in at just 71% - a 22-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SLC to IAH? ▼
What is the cancellation rate for SLC to IAH? ▼
How far is the flight from SLC to IAH? ▼
When is the best time to fly from SLC to IAH? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.