Detroit (DTW) to Houston (IAH) flights
Delta Air Lines, Mesa Airlines, Frontier Airlines, United Airlines fly nonstop from Detroit Metropolitan Wayne County Airport to George Bush Intercontinental Airport, with about 52 flights a week in July 2026. The 1,075-mile flight takes about 3h 2m gate to gate.
- Distance
- 1,075 mi · 1,730 km
- Flight time
- 3h 2m
- Airlines
- 4
- Seats filled
- 81%
Airlines flying DTW to IAH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 26 | Airbus A319, Airbus A320-100/200, Boeing 717-200 | 149,464 | 3h 1m |
| Mesa Airlines | 13 | Embraer E175 | 44,405 | 3h 5m |
| Frontier Airlines | 7 | Airbus A321, Airbus A320neo | 23,738 | 3h 9m |
| United Airlines | 6 | Boeing 737-700 / MAX 7, Airbus A320-100/200, Boeing 737 MAX 8 | 27,534 | 3h 1m |
| Spirit AirlinesCeased operations 2026-05-02 | n/a | Airbus A320-100/200, Airbus A321, Airbus A320neo | 54,561 | 2h 58m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DTW to IAH flight schedule
11 flight numbers flew this route in August 2026, 6 of them almost daily. The first usually leaves at 6:15am and the last at 8:20pm. 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 1229United Airlines | 6:15am | 8:11am | 10 | 93% |
| UA 537United Airlines | 6:15am | 8:17am | 17 | 88% |
| UA 5609United Airlines · operated by SkyWest Airlines | 6:15am | 8:30am | 4 | n/a |
| DL 1043Delta Air Lines | 8:35am | 10:33am | 31 | 84% |
| F9 1957Frontier Airlines | 9:06am | 11:10am | 31 | 67% |
| UA 6251United Airlines · operated by Mesa Airlines | 10:55am | 1:00pm | 31 | 85% |
| DL 1307Delta Air Lines | 12:20pm | 2:20pm | 29 | 84% |
| DL 1529Delta Air Lines | 4:31pm | 6:32pm | 26 | 72% |
| UA 4032United Airlines · operated by Mesa Airlines | 6:40pm | 8:50pm | 8 | 78% |
| UA 4034United Airlines · operated by Mesa Airlines | 6:48pm | 8:55pm | 12 | 67% |
| DL 1633Delta Air Lines | 8:20pm | 10:19pm | 31 | 78% |
Is DTW to IAH on time?
From September 2025 to August 2026, 80% of 2,765 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 6am were the most punctual (85%), those around 8pm the least (72%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (39%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,327 | 79% | 13 min | 0.8% |
| United Airlines | 964 | 85% | 10 min | 0.3% |
| Spirit Airlines | 292 | 76% | 21 min | 2.4% |
| Frontier Airlines | 182 | 67% | 24 min | 1.1% |
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 |
|---|---|---|---|
| 6am to 7am | 209 | 85% | |
| 8am to 9am | 618 | 83% | |
| 9am to 10am | 85 | 87% | |
| 10am to 11am | 272 | 83% | |
| 11am to 12pm | 57 | 88% | |
| 12pm to 1pm | 304 | 83% | |
| 3pm to 4pm | 57 | 84% | |
| 4pm to 5pm | 498 | 74% | |
| 5pm to 6pm | 64 | 84% | |
| 6pm to 7pm | 87 | 74% | |
| 8pm to 9pm | 306 | 72% | |
| 9pm to 10pm | 100 | 67% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 256 | 28,566 | |
| September 2025 | 243 | 23,592 | |
| October 2025 | 250 | 27,118 | |
| November 2025 | 233 | 25,691 | |
| December 2025 | 219 | 24,859 | |
| January 2026 | 189 | 18,796 | |
| February 2026 | 200 | 22,421 | |
| March 2026 | 245 | 27,571 | |
| April 2026 | 236 | 23,483 | |
| May 2026 | 236 | 25,795 | |
| June 2026 | 230 | 25,658 | |
| July 2026 | 232 | 26,497 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.