Best Time to Fly BDL to DEN: On-Time Stats by Hour & Airline
Bradley International → Denver International
Data through July 2026 · Last updated October 18, 2026
890 flights were scheduled from Hartford (BDL) to Denver (DEN) 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%.
Among 2 airlines, United Airlines led with 84.9% on time and Southwest Airlines was last with 79.2%.
Over 24 months, Monday was the most reliable day (85% on time) and August the worst month (73%).
The cancellation rate was 1.0% (US average 1.8%).
BDL to DEN 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 | 84.9% | 70 min | 1.0% | 727 |
| Southwest Airlines | 79.2% | 51 min | 1.2% | 163 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BDL to DEN
On-time arrival % by scheduled departure hour (local time), 1,959 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 90.6% | 0.0% | 53 |
| 6am–7am | 89.0% | 1.2% | 83 |
| 7am–8am | 87.4% | 0.7% | 423 |
| 8am–9am | 91.5% | 0.8% | 357 |
| 9am–10am | 82.6% | 0.0% | 46 |
| 10am–11am | Limited data | 7 | |
| 11am–12pm | Limited data | 25 | |
| 12pm–1pm | Limited data | 9 | |
| 1pm–2pm | 71.9% | 0.0% | 66 |
| 2pm–3pm | 68.2% | 0.0% | 45 |
| 3pm–4pm | 75.8% | 0.9% | 770 |
| 4pm–5pm | Limited data | 15 | |
| 5pm–6pm | 85.7% | 0.0% | 49 |
| 6pm–7pm | Limited data | 1 | |
| 7pm–8pm | Limited data | 10 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BDL to DEN
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) | 73.0% | -11.0 pts | 0.0% | 37 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.3% | -4.7 pts | 0.0% | 82 |
| Summer peak (Jun 15 - Aug 15) | 75.6% | -8.4 pts | 0.6% | 324 |
| All other days | 84.0% | — | 0.8% | 1,516 |
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).