Best Time to Fly TUL to IAH: On-Time Stats by Hour & Airline
Tulsa International → George Bush Intercontinental/Houston
Data through July 2026 · Last updated October 18, 2026
1,087 flights were scheduled from Tulsa (TUL) to Houston (IAH) in the last 12 months, and 83.9% of those that flew arrived on time, 6.2 points above the US average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 88.0%, while SkyWest Airlines trailed at 82.2%.
September has been the best month (92% on time) and Monday the weakest day of the week (79%).
0.5% of flights were cancelled, versus 1.8% nationally.
TUL to IAH 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 | 88.0% | 66 min | 0.6% | 311 |
| SkyWest Airlines | 82.2% | 86 min | 0.4% | 776 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly TUL to IAH
On-time arrival % by scheduled departure hour (local time), 1,739 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 1 | |
| 6am–7am | 95.3% | 1.5% | 65 |
| 7am–8am | 92.6% | 2.2% | 318 |
| 8am–9am | 81.1% | 0.0% | 53 |
| 9am–10am | 85.4% | 0.5% | 186 |
| 11am–12pm | 81.8% | 2.2% | 45 |
| 1pm–2pm | 88.3% | 0.7% | 407 |
| 3pm–4pm | 74.3% | 0.4% | 505 |
| 5pm–6pm | 79.3% | 0.7% | 136 |
| 6pm–7pm | Limited data | 23 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on TUL to IAH
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) | 81.1% | -3.3 pts | 0.0% | 37 |
| Christmas & New Year (Dec 20 - Jan 3) | 90.0% | +5.7 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 80.9% | -3.4 pts | 2.1% | 336 |
| All other days | 84.3% | — | 0.8% | 1,336 |
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).