Raleigh/Durham (RDU) to Houston (IAH) flights
United Airlines, Frontier Airlines, Mesa Airlines fly nonstop from Raleigh-Durham International Airport to George Bush Intercontinental Airport, with about 26 flights a week in July 2026. The 1,042-mile flight takes about 3h 0m gate to gate.
- Distance
- 1,042 mi · 1,677 km
- Flight time
- 3h 0m
- Airlines
- 3
- Seats filled
- 81%
Airlines flying RDU to IAH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 12 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737 MAX 9 | 90,689 | 3h 0m |
| Frontier Airlines | 7 | Airbus A321, Airbus A320neo, Airbus A320-100/200 | 35,972 | 3h 3m |
| Mesa Airlines | 7 | Embraer E175 | 22,609 | 2h 57m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
RDU to IAH flight schedule
6 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 6:30am and the last at 5:05pm. 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 1383United Airlines | 6:30am | 8:27am | 21 | 92% |
| UA 2074United Airlines | 6:30am | 8:21am | 10 | 95% |
| F9 1741Frontier Airlines | 10:20am | 12:19pm | 31 | 81% |
| UA 6290United Airlines · operated by Mesa Airlines | 12:45pm | 2:49pm | 18 | 89% |
| UA 6296United Airlines · operated by Mesa Airlines | 12:45pm | 2:44pm | 8 | 89% |
| UA 2407United Airlines | 5:05pm | 7:09pm | 25 | 85% |
Is RDU to IAH on time?
From September 2025 to August 2026, 86% of 1,279 flights arrived within 15 minutes of schedule and 1.1% were cancelled. Flights leaving around 6am were the most punctual (93%), those around 4pm the least (83%). Most delay time was caused by air traffic control and airport congestion (37%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,033 | 89% | 8 min | 0.9% |
| Frontier Airlines | 246 | 77% | 23 min | 2% |
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 | 364 | 93% | |
| 10am to 11am | 140 | 83% | |
| 12pm to 1pm | 134 | 84% | |
| 1pm to 2pm | 204 | 91% | |
| 4pm to 5pm | 294 | 83% | |
| 5pm to 6pm | 57 | 86% | |
| 6pm to 7pm | 34 | 82% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 101 | 11,675 | |
| September 2025 | 101 | 11,776 | |
| October 2025 | 112 | 13,749 | |
| November 2025 | 103 | 12,488 | |
| December 2025 | 106 | 13,269 | |
| January 2026 | 93 | 10,135 | |
| February 2026 | 92 | 10,765 | |
| March 2026 | 106 | 13,298 | |
| April 2026 | 103 | 11,541 | |
| May 2026 | 112 | 13,309 | |
| June 2026 | 112 | 13,542 | |
| July 2026 | 113 | 14,393 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.