Best Time to Fly DEN to BDL: On-Time Stats by Hour & Airline
Denver International → Bradley International
Data through July 2026 · Last updated October 18, 2026
890 flights were scheduled from Denver (DEN) to Hartford (BDL) in the last 12 months, and 75.9% of those that flew arrived on time, 1.7 points below the US average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 80.3%, while Southwest Airlines trailed at 56.0%.
February has been the best month (85% on time) and Friday the weakest day of the week (71%).
1.4% of flights were cancelled, versus 1.8% nationally.
DEN to BDL 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 | 80.3% | 59 min | 0.8% | 727 |
| Southwest Airlines | 56.0% | 47 min | 3.7% | 163 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to BDL
On-time arrival % by scheduled departure hour (local time), 1,959 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 86.4% | 1.0% | 297 |
| 10am–11am | 87.2% | 0.0% | 438 |
| 11am–12pm | Limited data | 3 | |
| 12pm–1pm | Limited data | 5 | |
| 1pm–2pm | Limited data | 25 | |
| 2pm–3pm | 71.7% | 0.0% | 53 |
| 3pm–4pm | 78.0% | 0.0% | 50 |
| 4pm–5pm | Limited data | 23 | |
| 5pm–6pm | 64.6% | 0.8% | 714 |
| 6pm–7pm | 69.8% | 1.0% | 309 |
| 7pm–8pm | 61.0% | 0.0% | 41 |
| 8pm–9pm | Limited data | 1 | |
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 BDL
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) | 78.4% | +2.1 pts | 0.0% | 37 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.5% | -6.8 pts | 0.0% | 82 |
| Summer peak (Jun 15 - Aug 15) | 66.5% | -9.9 pts | 0.9% | 324 |
| All other days | 76.3% | — | 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).