Houston (IAH) to Des Moines (DSM) flights
Mesa Airlines, United Airlines fly nonstop from George Bush Intercontinental Airport to Des Moines International Airport, with about 14 flights a week in July 2026. The 802-mile flight takes about 2h 16m gate to gate.
- Distance
- 802 mi · 1,291 km
- Flight time
- 2h 16m
- Airlines
- 2
- Seats filled
- 78%
Airlines flying IAH to DSM
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Mesa Airlines | 7 | Embraer E175 | 23,438 | 2h 15m |
| United Airlines | 7 | Airbus A319, Boeing 737-800, Airbus A320-100/200 | 34,781 | 2h 18m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAH to DSM flight schedule
3 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 11:55am and the last at 8:12pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 6166United Airlines · operated by Mesa Airlines | 11:55am | 2:14pm | 31 | 85% |
| UA 4060United Airlines · operated by Mesa Airlines | 8:05pm | 10:30pm | 18 | 89% |
| UA 1780United Airlines | 8:12pm | 10:35pm | 10 | 78% |
Is IAH to DSM on time?
From September 2025 to August 2026, 82% of 727 flights arrived within 15 minutes of schedule and 1% were cancelled. Flights leaving around 12pm were the most punctual (88%), those around 7pm the least (73%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (42%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 727 | 82% | 12 min | 1% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 11am to 12pm | 250 | 84% | |
| 12pm to 1pm | 115 | 88% | |
| 7pm to 8pm | 57 | 73% | |
| 8pm to 9pm | 304 | 80% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 61 | 5,102 | |
| September 2025 | 61 | 4,388 | |
| October 2025 | 62 | 4,722 | |
| November 2025 | 58 | 4,184 | |
| December 2025 | 61 | 4,093 | |
| January 2026 | 60 | 5,351 | |
| February 2026 | 55 | 5,441 | |
| March 2026 | 59 | 5,206 | |
| April 2026 | 61 | 5,135 | |
| May 2026 | 62 | 5,024 | |
| June 2026 | 60 | 4,868 | |
| July 2026 | 61 | 4,882 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.