Best Time to Fly DEN to TUL: On-Time Stats by Hour & Airline
Denver International → Tulsa International
Data through July 2026 · Last updated October 18, 2026
2,452 flights were scheduled from Denver (DEN) to Tulsa (TUL) in the last 12 months, and 77.4% of those that flew arrived on time, in line with the US average of 77.6%.
SkyWest Airlines was the most punctual of the 4 airlines on the route at 86.1%, while Southwest Airlines trailed at 65.5%.
October has been the best month (85% on time) and Thursday the weakest day of the week (73%).
0.9% of flights were cancelled, versus 1.8% nationally.
DEN to TUL 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 |
|---|---|---|---|---|
| SkyWest Airlines | 86.1% | 64 min | 0.6% | 1,150 |
| United Airlines | 78.8% | 80 min | 0.8% | 366 |
| Frontier Airlines | 76.7% | 74 min | 0.0% | 43 |
| Southwest Airlines | 65.5% | 53 min | 1.2% | 893 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to TUL
On-time arrival % by scheduled departure hour (local time), 4,859 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 2 | |
| 7am–8am | Limited data | 17 | |
| 8am–9am | 85.7% | 1.3% | 78 |
| 9am–10am | 85.8% | 0.0% | 471 |
| 10am–11am | 83.5% | 0.3% | 690 |
| 11am–12pm | 77.8% | 2.2% | 92 |
| 12pm–1pm | 83.6% | 3.5% | 57 |
| 1pm–2pm | 87.5% | 0.8% | 795 |
| 2pm–3pm | 67.4% | 0.0% | 43 |
| 3pm–4pm | 76.4% | 0.4% | 264 |
| 4pm–5pm | 56.8% | 0.0% | 184 |
| 5pm–6pm | 68.5% | 0.9% | 660 |
| 6pm–7pm | 74.6% | 0.7% | 297 |
| 7pm–8pm | 43.6% | 2.2% | 225 |
| 8pm–9pm | 70.8% | 0.9% | 863 |
| 9pm–10pm | 85.8% | 0.0% | 107 |
| 10pm–11pm | Limited data | 12 | |
| 11pm–12am | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN to TUL
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) | 75.3% | -3.0 pts | 0.0% | 93 |
| Christmas & New Year (Dec 20 - Jan 3) | 83.2% | +5.0 pts | 0.0% | 204 |
| Summer peak (Jun 15 - Aug 15) | 65.9% | -12.4 pts | 0.8% | 886 |
| All other days | 78.3% | — | 0.8% | 3,676 |
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).