Best Time to Fly DEN to BTV: On-Time Stats by Hour & Airline
Denver International → Patrick Leahy Burlington International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.1% of Denver (DEN) to Burlington (BTV) flights arrived on time (219 scheduled flights). That is in line with the national average of 77.6%.
United Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (85% on time) and November the worst month (70%).
The cancellation rate was 0.0% (US average 1.8%).
DEN to BTV 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 | 78.1% | 34 min | 0.0% | 219 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to BTV
On-time arrival % by scheduled departure hour (local time), 382 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 83.8% | 0.0% | 228 |
| 10am–11am | 78.1% | 0.0% | 146 |
| 5pm–6pm | Limited data | 8 | |
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 BTV
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) | Limited data | 7 | ||
| Summer peak (Jun 15 - Aug 15) | 74.0% | -9.6 pts | 0.0% | 131 |
| All other days | 83.6% | — | 0.0% | 244 |
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).