Holiday travel
Labor Day at HOU
William P. Hobby Airport, Houston, TX. July 2023 – July 2026. Set against HOU’s own ordinary days of the same weekday in the weeks around each holiday.
The window, year by year
The window runs the Saturday through the Monday, around Labor Day (the first Monday of September). In the data: Sep 2–4, 2023; Aug 31 – Sep 2, 2024; Aug 30 – Sep 1, 2025. Three windows are in the data: enough to see whether a day repeats, not enough to call it a rule.
Compared with ordinary days, Labor Day flights were about the same in two and worse in one of the three years. The gap ran from 23.6 points below usual in 2025 to 1.1 points above usual in 2024.
0.33% of scheduled departures were cancelled across the Labor Day windows, against 0.46% on ordinary days of the same weekdays. The rate stayed within a quarter point of usual in all three years.
| Year | Departures | On time | Usual | Gap, points | Cancelled | Usual |
|---|---|---|---|---|---|---|
| 2023Sep 2–4, 2023 | 412 | 83.9% | 85.9% | −2.0about the same | 0.49% | 0.47% |
| 2024Aug 31 – Sep 2, 2024 | 409 | 87.2% | 86.1% | +1.1about the same | 0.24% | 0.46% |
| 2025Aug 30 – Sep 1, 2025 | 406 | 62.4% | 86.0% | −23.6worse | 0.25% | 0.46% |
| All years3 windows | 1,227 | 77.9% | 86.0% | −8.1worse | 0.33% | 0.46% |
Day by day
Labor Day was the worst day of the window in two of the three years. Over the years it ran 73.1% on time, 12.2 points below an ordinary Monday.
The Sunday before Labor Day was the best day of the window in two of the three years. Over the years it ran 82.2% on time, still 1.0 point below an ordinary Sunday.
- Better than usual
- Worse than usual
- About the same
- What ordinary days of the same weekday had
- Lowest to highest single year
- Lighter bars: days just outside the window
Bars show the on-time arrival rate and start at 50%, not zero.
| Day | Departures against an ordinary day | On time | Usual | Gap, points | Cancelled | Each year: 2023, 2024, 2025 |
|---|---|---|---|---|---|---|
| Thursday beforeoutside the window | about the same | 72.4% | 81.3% | −8.9worse | 0.85% | 84.9 · 67.3 · 65.4 |
| Friday beforeoutside the window | about the same | 74.5% | 81.0% | −6.5worse | 0.42% | 77.2 · 80.1 · 66.5 |
| Saturday before | 3% fewer | 79.7% | 89.9% | −10.2worse | 0.55% | — · 84.8 · 65.0 |
| Sunday before | 22% fewer | 82.2% | 83.2% | −1.0about the same | 0.26% | 90.0 · 91.1 · 63.9 |
| Labor Day | about the same | 73.1% | 85.3% | −12.2worse | 0.21% | 74.2 · 86.0 · 59.5 |
| Tuesday afteroutside the window | about the same | 93.7% | 90.5% | +3.2better | 0.00% | 91.2 · 97.7 · 92.5 |
A dash means fewer than 120 flights stood behind the figure, or behind the ordinary days it would be compared with: too few to print a rate, and nothing is estimated in its place. “Usual” is what ordinary days of the same weekday had at the same place in the weeks around the holiday, weighted by the flights being compared.
Which departure times held up
The busiest days at HOU were Sunday, Sep 3, 2023 (141 departures), Monday, Sep 4, 2023 (155 departures), Saturday, Aug 31, 2024 (125 departures), Monday, Sep 2, 2024 (159 departures), Saturday, Aug 30, 2025 (122 departures), and Monday, Sep 1, 2025 (163 departures).
Across the whole window, flights leaving 5–9 AM had the highest on-time rate: 96.3%, 2.1 points above usual for that time of day. Those leaving 6–9 PM had the lowest: 67.2%, 14.6 points below usual for that time of day.
Against usual for their time of day, flights leaving 5–9 AM did best (+2.1 points) and those leaving 12–3 PM did worst (−17.7 points).
On each year’s two busiest days, flights leaving 5–9 AM had the highest on-time rate: 95.8%, 1.7 points above usual for that time of day. Those leaving 6–9 PM had the lowest: 60.6%, 22.8 points below usual for that time of day.
Against usual for their time of day, flights leaving 5–9 AM did best (+1.7 points) and those leaving 6–9 PM did worst (−22.8 points).
| Leaving | On time, whole window | Usual | Gap, points | On time, busiest days | Usual | Gap, points |
|---|---|---|---|---|---|---|
| 5–9 AM | 96.3% | 94.2% | +2.1about the same | 95.8% | 94.1% | +1.7about the same |
| 9 AM–12 PM | 85.1% | 89.1% | −4.0about the same | 82.1% | 87.8% | −5.7about the same |
| 12–3 PM | 68.1% | 85.8% | −17.7worse | 68.5% | 85.5% | −17.0worse |
| 3–6 PM | 69.3% | 80.9% | −11.6worse | 71.3% | 81.5% | −10.2worse |
| 6–9 PM | 67.2% | 81.8% | −14.6worse | 60.6% | 83.4% | −22.8worse |
| 9 PM–5 AM | — | — | — | — | — | — |
HOU beside every covered airport
Storms and outages move whole regions at once. This puts HOU’s year beside the year of all covered airports together, each against its own usual, to show whether HOU did better or worse than the network.
| Year | HOU on time | HOU, gap from usual | All airports on time | All airports, gap from usual |
|---|---|---|---|---|
| 2023Sep 2–4, 2023 | 83.9% | −2.0 | 87.4% | +7.6 |
| 2024Aug 31 – Sep 2, 2024 | 87.2% | +1.1 | 82.1% | +2.4 |
| 2025Aug 30 – Sep 1, 2025 | 62.4% | −23.6 | 82.2% | +2.5 |
For every holiday at once, see the five holidays at HOU, or the network view.