Hartford (BDL) to Denver (DEN): On-Time Performance
Data through May 2026
The calendar drives reliability on BDL–DEN. March 2025 flights landed on schedule 94% of the time, but August 2024 dropped to 66% — a gap of 28 points. Across the full period the route averages 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 2.6
- last 12 months
- Duration
- 4h 30m
- scheduled
- Distance
- 1,671 mi
Best airline from BDL to DEN
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 83% | 12 min | 0.9% | 1,450 |
| Southwest Airlines | 76% | 13 min | 0.5% | 561 |
Monthly on-time trend
Best time to fly from BDL to DEN
Aim for departures around 5 a.m. (91% on-time); avoid 4 p.m. departures (38%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 12 min |
| Tuesday | 82% | 13 min |
| Wednesdaybest | 83% | 11 min |
| Thursday | 80% | 9 min |
| Friday | 81% | 14 min |
| Saturday | 75% | 13 min |
| Sunday | 81% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft30%
- Airline operations34%
- National airspace system31%
- Weather5%
Frequently asked questions
- How often are flights from BDL to DEN delayed?
- 19% of BDL–DEN flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 minutes.
- Which airline is most reliable from BDL to DEN?
- United Airlines has the best on-time record on this route at 83%, based on 1,450 flights. 2 airlines flew BDL–DEN frequently enough to compare in this period.
- What is the best time of day to fly from BDL to DEN?
- Departures around 5 a.m. have the best record (91% on-time), while departures around 4 p.m. have the worst (38%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BDL to DEN?
- The scheduled BDL–DEN flight time averages 4h 30m over 1,671 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are BDL to DEN flights cancelled?
- 0.8% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from BDL to DEN?
- August 2024 was the roughest month in this dataset, with only 66% of arrivals on time. The best was March 2025 at 94%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 2,011 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.