Route
DSM → IAH
Des Moines International Airport George Bush Intercontinental Airport
802 miles
Return route IAH → DSM →
How punctual is this route?
- On-time arrivals
- 88.5%
- Less than 15 minutes late
- Cancelled
- 1.5%
- Of scheduled flights
- Average delay when late
- 86 min
- Flights arriving 15+ minutes late
- Flights tracked
- 329
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 66%
- Air traffic control & airport 22%
- Late-arriving aircraft 11%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 93.3% | 30 |
| October 2025 | 93.5% | 31 |
| November 2025 | 96.4% | 30 |
| December 2025 | 89.5% | 19 |
| January 2026 | 84.0% | 25 |
| February 2026 | 92.6% | 28 |
| March 2026 | 93.1% | 31 |
| April 2026 | 86.7% | 30 |
| May 2026 | 76.7% | 31 |
| June 2026 | 83.3% | 30 |
| July 2026 | 90.0% | 30 |
| August 2026 | 78.6% | 14 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 325 | 89.0% | 1.5% | 83 min |
| SkyWest Airlines | 4 | 50.0% | 0.0% | 143 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1982
11% late · 322 flights
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