Houston, TX · Airport profile
HOU
William P. Hobby Airport
HOU right now
Live conditions where a permitted source publishes them, and the historical record where none does.
Aviation weather is not currently a factor.
63.0% leave on time
19:00–19:59 local · 8,673 departures on record
When flights run late in this hour, most of the delay is attributed to late-arriving aircraft.
Historical pattern for HOU from US DOT BTS — not a live reading.
Minimal operational impact. Conditions are not a notable factor for operations right now.
Forecast issued 23:20Z.
UpdatedBelow 10,000 ft, so aircraft overflying at cruise are not counted. These are observations, not an operational status: a count is a floor, since receiver coverage varies and a movement between two samples can be missed.
UpdatedAircraft observations from adsb.lol, under the ODbL 1.0. Derived data.
FlyerIntel shows live values only where a permitted source provides them. Sections without data are left empty rather than estimated.
Airport reliability
Departures from HOU, July 2023 – June 2026.
Better than 73% of major US airports covered by FlyerIntel (64 compared)
Calculated from 167,451 flights. How this is calculated
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – June 2026
Best time to fly from HOU
On-time arrival rate by scheduled local departure time.
Flights departing 5–9 AM arrived on time 92.0% of the time, against 68.4% for 9 PM–5 AM departures — a gap of 23.7 percentage points.
By departure window
By departure hour
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Buckets with fewer than 120 flights are not scored.
What to expect at HOU
How busy the airport is through the day, from scheduled departure volume.
Scheduled departures by hour
The busiest hour is 8 AM, with about 15 departures a day, against roughly 6 at 9 AM. Counterintuitively, that peak is also more punctual than a typical hour here — early banks fly aircraft that have been on the ground overnight rather than ones inheriting the day’s delays.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Taxi-out is the time between leaving the gate and lifting off, averaged across departures and weighted by hour.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 6.7 percentage points.
By month
June is historically the weakest month and September the strongest, a spread of 17.0 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026
Airlines at HOU
Departure performance by operating carrier. Regional flights are reported by the carrier that operated them, not by the mainline brand.
| Carrier | Departures | On time | Cancelled | Median delay |
|---|---|---|---|---|
| Southwest Airlines WN | 154,825 | 79.1% | 0.91% | -4 min |
| Delta Air Lines DL | 4,509 | 84.6% | 1.46% | -10 min |
| Envoy Air MQ | 4,285 | 79.5% | 3.17% | -6 min |
| SkyWest Airlines OO | 1,453 | 73.6% | 3.85% | -5 min |
| Allegiant Air G4 | 929 | 71.6% | 0.75% | -1 min |
| PSA Airlines OH | 858 | 75.4% | 6.53% | -8 min |
| Frontier Airlines F9 | 592 | 72.4% | 3.72% | -5 min |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Carriers with fewer than 500 departures are not listed.
Routes from HOU
Ranked by FlyerIntel Route Reliability Score.
Most reliable
Busiest routes
| Destination | Flights | On time | Score |
|---|---|---|---|
| HOU → DAL Dallas | 12,341 | 81.5% | 69 |
| HOU → ATL Atlanta | 9,379 | 81.9% | 70 |
| HOU → DEN Denver | 7,624 | 79.6% | 71 |
| HOU → MSY New Orleans | 6,856 | 83.2% | 80 |
| HOU → DFW Dallas–Fort Worth | 6,596 | 77.7% | 46 |
| HOU → PHX Phoenix | 6,319 | 79.1% | 74 |
| HOU → LAS Las Vegas | 6,113 | 80.2% | 75 |
| HOU → MCO Orlando | 6,059 | 79.0% | 67 |
| HOU → MDW Chicago | 5,378 | 78.2% | 69 |
| HOU → BNA Nashville | 5,297 | 81.3% | 76 |
| HOU → SAT San Antonio | 4,646 | 79.6% | 76 |
| HOU → AUS Austin | 4,598 | 77.6% | 72 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Only routes with at least 750 flights are ranked.
Reliability over time
On-time arrival rate for departures, by month.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026
Data and sources
Historical statistics
Every historical figure on this page is calculated by FlyerIntel from US DOT Bureau of Transportation Statistics on-time performance records covering July 2023 – June 2026, comprising 167,451 departures from HOU. A flight counts as delayed when it arrives 15 or more minutes after schedule.
Full methodology · All data sources
Analysis last recomputed
Live conditions
Aviation weather comes from the NOAA Aviation Weather Center. Operational events come from the FAA where available. FlyerIntel shows the age of every live value and does not display data it cannot currently retrieve.
Latest observation for HOU: METAR KHOU 302353Z 16011KT 10SM FEW055 FEW250 33/22 A2993 RMK AO2 SLP138 T03280222 10361 20328 55001 $ (issued ).