Airport reliability
Houston (HOU) on-time performance
How reliably flights leave Houston, TX (HOU) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Houston, TX53,580 departures in 12 months
- Departures on time
- 75.7% U.S. average 75.6%
- Cancelled
- 0.9% U.S. average 1.9%
- 60+ minutes late
- 6.3% U.S. average 8.1%
- Scheduled departures
- 53,580 12 months
What this means
HOU departures beat the U.S. average.
- 75.7% of the 53,580 scheduled departures from Houston (HOU) arrived at their destination on time, about the same as the U.S. average of 75.6%.
- 0.9% of departures were cancelled (U.S. average 1.9%), and 6.3% arrived an hour or more late.
- Flights arriving at HOU were on time 76.2% of the time.
- Among airlines with at least 300 departures, Delta Air Lines was the most punctual from HOU (82.4%) and SkyWest Airlines the least (69.9%).
- Over the last 3 years, February was the most reliable month for departures from HOU (84.9% on time) and July the least reliable (67.0%).
- Cancellations peaked in January, when 3.6% of flights were cancelled.
- Flights scheduled to depart before 6 am were the most punctual (93.4% on time); flights scheduled to depart 7 pm to 8 pm were the least (61.2%).
Airlines at HOU
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Delta Air Lines | 82.4% | 2.1% | 6.4% | 96 min | 1,387 |
| Envoy AirSold as American Eagle | 81.1% | 2.7% | 5.8% | 68 min | 804 |
| Southwest Airlines | 75.5% | 0.7% | 6.1% | 50 min | 49,994 |
| Allegiant Air | 74.0% | 0.0% | 9.7% | 129 min | 227 |
| PSA AirlinesSold as American Eagle | 73.7% | 5.0% | 11.1% | 106 min | 719 |
| SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska | 69.9% | 4.5% | 13.4% | 135 min | 449 |
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time HOU average 75.7%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 93.4% | 1,920 |
| Departing 6 am to 7 am | 91.6% | 2,430 |
| Departing 7 am to 8 am | 90.2% | 2,740 |
| Departing 8 am to 9 am | 90.1% | 4,678 |
| Departing 9 am to 10 am | 88.8% | 2,409 |
| Departing 10 am to 11 am | 83.7% | 3,973 |
| Departing 11 am to noon | 82.0% | 3,386 |
| Departing noon to 1 pm | 76.3% | 2,734 |
| Departing 1 pm to 2 pm | 76.0% | 2,479 |
| Departing 2 pm to 3 pm | 64.9% | 4,285 |
| Departing 3 pm to 4 pm | 67.7% | 2,703 |
| Departing 4 pm to 5 pm | 68.5% | 2,441 |
| Departing 5 pm to 6 pm | 66.2% | 2,587 |
| Departing 6 pm to 7 pm | 67.5% | 3,482 |
| Departing 7 pm to 8 pm | 61.2% | 2,804 |
| Departing 8 pm to 9 pm | 66.8% | 4,255 |
| Departing 9 pm to 10 pm | 65.4% | 2,038 |
| Departing 10 pm to 11 pm | 62.7% | 2,235 |
| Departing 11 pm to midnight | Insufficient sample | 1 |
Best and worst months at HOU
Share of scheduled flights on time 12-month average 75.7%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 80.1% | 12,808 |
| February | 84.9% | 11,914 |
| March | 76.2% | 14,207 |
| April | 78.3% | 13,899 |
| May | 70.4% | 14,285 |
| June | 67.5% | 14,521 |
| July | 67.0% | 15,095 |
| August | 78.8% | 13,668 |
| September | 84.9% | 13,363 |
| October | 81.5% | 14,931 |
| November | 84.4% | 13,960 |
| December | 81.3% | 14,343 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 85.8% | 4,452 |
| Oct 2025 | 77.8% | 4,887 |
| Nov 2025 | 78.3% | 4,552 |
| Dec 2025 | 81.5% | 4,634 |
| Jan 2026 | 85.6% | 4,081 |
| Feb 2026 | 83.6% | 3,832 |
| Mar 2026 | 66.3% | 4,578 |
| Apr 2026 | 75.5% | 4,418 |
| May 2026 | 71.1% | 4,533 |
| Jun 2026 | 63.0% | 4,514 |
| Jul 2026 | 68.2% | 4,773 |
| Aug 2026 | 73.8% | 4,326 |
Busiest routes from HOU
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Dallas (DAL) | 79.7% | 2.1% | 1 | 4,039 |
| Atlanta (ATL) | 77.9% | 1.3% | 2 | 2,850 |
| Denver (DEN) | 77.0% | 0.3% | 1 | 2,369 |
| New Orleans (MSY) | 82.4% | 0.2% | 1 | 2,289 |
| Phoenix (PHX) | 76.4% | 0.5% | 1 | 2,081 |
| Orlando (MCO) | 76.1% | 0.8% | 1 | 2,057 |
| Las Vegas (LAS) | 79.5% | 0.3% | 1 | 2,018 |
| Dallas/Fort Worth (DFW) | 75.9% | 4.0% | 3 | 1,972 |
| Chicago (MDW) | 69.2% | 1.0% | 1 | 1,843 |
| Nashville (BNA) | 76.6% | 0.7% | 1 | 1,835 |
| St. Louis (STL) | 79.3% | 0.4% | 1 | 1,567 |
| Baltimore (BWI) | 73.7% | 1.3% | 1 | 1,482 |
| Midland/Odessa (MAF) | 81.9% | 0.4% | 1 | 1,363 |
| New York (LGA) | 59.7% | 2.7% | 1 | 1,358 |
| Austin (AUS) | 74.1% | 0.4% | 1 | 1,315 |
| San Antonio (SAT) | 77.1% | 0.1% | 1 | 1,282 |
| Oklahoma City (OKC) | 74.9% | 0.9% | 1 | 1,216 |
| Los Angeles (LAX) | 73.5% | 0.2% | 1 | 1,188 |
| Harlingen/San Benito (HRL) | 75.8% | 0.2% | 1 | 1,165 |
| Washington (DCA) | 66.3% | 1.8% | 1 | 1,052 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Houston, TX (HOU) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.