Route · IAH → DSM · 2020–2025 BTS data
Houston to Des Moines
The IAH–DSM corridor (Houston, TX → Des Moines, IA) runs behind the national average, served by 13 carriers across roughly 802 miles.
Data updated 2026-06-13
- 77%
- On-time
- -2 pts
- vs US avg
- 67 min
- Delay when late
- 2,883
- Flights
Cancelled
1.4%
Best Month
Nov 2023 88%
Worst Month
May 2024 51%
Distance
802 mi
Carriers
13
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Nov 2025 | 30 | 12 | 0 | 1 | OO,UA |
| Oct 2025 | 31 | 5 | 0 | 0 | UA |
| Sep 2025 | 30 | 7 | 0 | 0 | UA |
| Aug 2025 | 31 | 14 | 1 | 0 | UA |
| Jul 2025 | 31 | 10 | 1 | 0 | UA |
| Jun 2025 | 30 | 14 | 0 | 0 | UA |
| May 2025 | 31 | 11 | 0 | 0 | UA |
| Oct 2024 | 38 | 4 | 0 | 0 | UA,OO |
| Jul 2024 | 33 | 17 | 3 | 0 | OO,UA |
| Jun 2024 | 32 | 16 | 1 | 1 | OO,UA |
| May 2024 | 53 | 26 | 4 | 0 | OO,UA |
| Apr 2024 | 60 | 14 | 0 | 0 | OO,UA |
| Mar 2024 | 31 | 10 | 0 | 0 | UA |
| Dec 2023 | 40 | 11 | 0 | 0 | OO,UA |
| Nov 2023 | 60 | 7 | 0 | 0 | OO,UA |
| Oct 2023 | 62 | 21 | 0 | 0 | OO,UA |
| Sep 2023 | 56 | 20 | 0 | 0 | OO,UA |
| Aug 2023 | 31 | 17 | 1 | 0 | UA |
| Jul 2023 | 40 | 17 | 0 | 0 | OO,UA |
| Jun 2023 | 31 | 21 | 2 | 0 | OO,UA |
| May 2023 | 35 | 14 | 0 | 1 | OO,UA |
| Apr 2023 | 60 | 20 | 0 | 1 | UA,OO |
| Mar 2023 | 37 | 18 | 0 | 0 | OO,UA |
| Feb 2023 | 37 | 6 | 0 | 0 | OO,UA |
Cancellation Rate
1.4%
13 of 950 flights
Diversion Rate
0.4%
4 of 950 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 →DSM - Des Moines
Full on-time, delay-cause, and seasonal performance for Des Moines, IA.
Destination airport →Compare the two airports
See IAH and DSM 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–DSM.
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What the Data Says About IAH to DSM
The Houston to Des Moines corridor (IAH to DSM) posts a 77% on-time rate on the lower edge of the average band, based on 2,883 tracked flights. Late flights run 67.2 minutes behind on average. 13 carriers cover the 802-mile route; over the last 24 months, 13 of 950 flights were cancelled (1.4%) and 0.4% diverted.
The monthly split is wide on this route: Nov 2023 posted the strongest performance at 88% on-time, while May 2024 came in at just 51% - a 37-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.