Houston (IAH) to Harlingen (HRL) flights
CommuteAir, Mesa Airlines fly nonstop from George Bush Intercontinental Airport to Valley International Airport, with about 21 flights a week in July 2026. The 295-mile flight takes about 1h 13m gate to gate.
- Distance
- 295 mi · 475 km
- Flight time
- 1h 13m
- Airlines
- 2
- Seats filled
- 85%
Airlines flying IAH to HRL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| CommuteAir | 15 | Embraer ERJ-145 | 52,600 | 1h 14m |
| Mesa Airlines | 6 | Embraer E175 | 8,799 | 1h 8m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAH to HRL flight schedule
4 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 12:05pm and the last at 8:35pm. 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 4287United Airlines · operated by CommuteAir | 12:05pm | 1:24pm | 31 | 88% |
| UA 4344United Airlines · operated by CommuteAir | 2:40pm | 3:59pm | 21 | 86% |
| UA 6168United Airlines · operated by Mesa Airlines | 6:30pm | 7:49pm | 9 | 85% |
| UA 4919United Airlines · operated by CommuteAir | 8:35pm | 9:52pm | 31 | 83% |
Is IAH to HRL on time?
From September 2025 to August 2026, 85% of 1,355 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 12pm were the most punctual (87%), those around 6pm the least (81%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (51%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,355 | 85% | 15 min | 0.8% |
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 |
|---|---|---|---|
| 9am to 10am | 150 | 87% | |
| 10am to 11am | 47 | 79% | |
| 12pm to 1pm | 158 | 87% | |
| 2pm to 3pm | 319 | 87% | |
| 6pm to 7pm | 322 | 81% | |
| 8pm to 9pm | 328 | 84% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 125 | 6,051 | |
| September 2025 | 120 | 5,912 | |
| October 2025 | 124 | 5,614 | |
| November 2025 | 112 | 4,560 | |
| December 2025 | 118 | 5,281 | |
| January 2026 | 114 | 4,772 | |
| February 2026 | 102 | 4,672 | |
| March 2026 | 120 | 5,028 | |
| April 2026 | 119 | 4,918 | |
| May 2026 | 114 | 4,976 | |
| June 2026 | 117 | 5,127 | |
| July 2026 | 92 | 4,532 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.