Best Time to Fly IAH to FLL: On-Time Stats by Hour & Airline
George Bush Intercontinental/Houston → Fort Lauderdale-Hollywood International
Data through July 2026 · Last updated October 18, 2026
2,821 flights were scheduled from Houston (IAH) to Fort Lauderdale (FLL) in the last 12 months, and 79.2% of those that flew arrived on time, 1.5 points above the US average of 77.6%.
United Airlines was the most punctual of the 4 airlines on the route at 85.2%, while JetBlue trailed at 36.4%.
November has been the best month (87% on time) and Sunday the weakest day of the week (74%).
1.2% of flights were cancelled, versus 1.8% nationally.
IAH to FLL 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 | 85.2% | 61 min | 0.7% | 1,830 |
| Spirit Airlines | 72.0% | 74 min | 1.9% | 789 |
| Frontier Airlines | 59.4% | 50 min | 4.5% | 134 |
| JetBlue | 36.4% | 76 min | 2.9% | 68 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly IAH to FLL
On-time arrival % by scheduled departure hour (local time), 5,427 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 86.9% | 2.3% | 478 |
| 6am–7am | 82.3% | 0.6% | 171 |
| 7am–8am | 84.8% | 1.4% | 568 |
| 8am–9am | 84.2% | 0.8% | 352 |
| 9am–10am | 82.7% | 1.0% | 193 |
| 10am–11am | 75.5% | 0.4% | 463 |
| 11am–12pm | 77.3% | 1.3% | 76 |
| 12pm–1pm | 82.1% | 2.1% | 470 |
| 1pm–2pm | 68.8% | 0.0% | 64 |
| 2pm–3pm | 81.0% | 1.1% | 542 |
| 3pm–4pm | Limited data | 5 | |
| 4pm–5pm | 73.1% | 1.0% | 511 |
| 5pm–6pm | 75.7% | 3.4% | 209 |
| 6pm–7pm | 74.7% | 0.7% | 894 |
| 7pm–8pm | 76.0% | 0.4% | 230 |
| 8pm–9pm | 75.0% | 1.1% | 186 |
| 9pm–10pm | Limited data | 15 | |
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 FLL
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) | 87.3% | +5.4 pts | 0.0% | 110 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.9% | -10.9 pts | 1.9% | 263 |
| Summer peak (Jun 15 - Aug 15) | 67.5% | -14.3 pts | 1.6% | 826 |
| All other days | 81.9% | — | 1.1% | 4,228 |
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).