Best Time to Fly IAH to PBI: On-Time Stats by Hour & Airline
George Bush Intercontinental/Houston → Palm Beach International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.4% of Houston (IAH) to West Palm Beach/Palm Beach (PBI) flights arrived on time (492 scheduled flights). That is 1.8 points above the national average of 77.6%.
United Airlines was the only reporting airline with regular flights on this route.
April has been the best month (84% on time) and Thursday the weakest day of the week (72%).
1.0% of flights were cancelled, versus 1.8% nationally.
IAH to PBI on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| United Airlines | 79.4% | 58 min | 1.0% | 492 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly IAH to PBI
On-time arrival % by scheduled departure hour (local time), 801 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 11 | |
| 9am–10am | Limited data | 2 | |
| 11am–12pm | 63.3% | 0.0% | 30 |
| 12pm–1pm | 74.9% | 0.8% | 527 |
| 6pm–7pm | 80.4% | 2.0% | 203 |
| 7pm–8pm | Limited data | 28 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on IAH to PBI
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 20 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 68.8% | -9.3 pts | 3.0% | 66 |
| Summer peak (Jun 15 - Aug 15) | 58.7% | -19.4 pts | 0.0% | 47 |
| All other days | 78.1% | — | 0.9% | 668 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).