Houston (IAH) to West Palm Beach/Palm Beach (PBI): On-Time Performance
Data through July 2026
Houston (IAH) to West Palm Beach/Palm Beach (PBI) effectively runs on two schedules. In January 2026, 91% of arrivals were on time; in July 2026 that fell to 55% — a 36-point seasonal swing. Across the full period the route averages 76% on-time against a national 78%.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 1.3
- last 12 months
- Duration
- 2h 33m
- scheduled
- Distance
- 956 mi
Monthly on-time trend
Best time to fly from IAH to PBI
Aim for departures around 6 p.m. (80% on-time); avoid 11 a.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 19 min |
| Tuesday | 79% | 11 min |
| Wednesdaybest | 85% | 8 min |
| Thursday | 73% | 21 min |
| Friday | 77% | 13 min |
| Saturday | 74% | 20 min |
| Sunday | 73% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft26%
- Airline operations23%
- National airspace system43%
- Weather8%
Frequently asked questions
- How often are flights from IAH to PBI delayed?
- 24% of IAH–PBI flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 16 minutes.
- What is the best time of day to fly from IAH to PBI?
- Departures around 6 p.m. have the best record (80% on-time), while departures around 11 a.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IAH to PBI?
- The scheduled IAH–PBI flight time averages 2h 33m over 956 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are IAH to PBI flights cancelled?
- 1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from IAH to PBI?
- July 2026 was the roughest month in this dataset, with only 55% of arrivals on time. The best was January 2026 at 91%. If your dates are flexible, that 36-point gap is worth planning around.
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Based on 801 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.