Des Moines (DSM) to Houston (IAH) flights
Mesa Airlines, United Airlines fly nonstop from Des Moines International Airport to George Bush Intercontinental Airport, with about 14 flights a week in July 2026. The 802-mile flight takes about 2h 26m gate to gate.
- Distance
- 802 mi · 1,291 km
- Flight time
- 2h 26m
- Airlines
- 2
- Seats filled
- 80%
Airlines flying DSM to IAH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Mesa Airlines | 7 | Embraer E175 | 22,655 | 2h 26m |
| United Airlines | 7 | Airbus A319, Boeing 737-800, Airbus A320-100/200 | 36,664 | 2h 26m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DSM to IAH flight schedule
3 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 6:15am and the last at 3:02pm. 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 4031United Airlines · operated by Mesa Airlines | 6:15am | 8:50am | 17 | 94% |
| UA 1982United Airlines | 6:20am | 8:49am | 10 | 89% |
| UA 6117United Airlines · operated by Mesa Airlines | 3:02pm | 5:25pm | 31 | 80% |
Is DSM to IAH on time?
From September 2025 to August 2026, 85% of 727 flights arrived within 15 minutes of schedule and 1.4% were cancelled. Flights leaving around 7am were the most punctual (92%), those around 3pm the least (82%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (32%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 727 | 85% | 12 min | 1.4% |
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 |
|---|---|---|---|
| 6am to 7am | 217 | 89% | |
| 7am to 8am | 41 | 92% | |
| 8am to 9am | 106 | 89% | |
| 2pm to 3pm | 148 | 82% | |
| 3pm to 4pm | 214 | 82% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 62 | 4,847 | |
| September 2025 | 60 | 4,395 | |
| October 2025 | 62 | 5,113 | |
| November 2025 | 57 | 4,511 | |
| December 2025 | 61 | 4,890 | |
| January 2026 | 60 | 5,340 | |
| February 2026 | 55 | 5,473 | |
| March 2026 | 57 | 5,178 | |
| April 2026 | 60 | 4,903 | |
| May 2026 | 61 | 4,677 | |
| June 2026 | 60 | 5,092 | |
| July 2026 | 61 | 5,083 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.