Denver (DEN) to Jamestown (JMS): On-Time Performance
Data through July 2026
When you fly DEN to JMS matters as much as anything else about the booking: the route swung from 96% on-time in November 2025 to just 71% in January 2025. Across the full period the route averages 85% on-time against a national 78%.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 1.7
- last 12 months
- Duration
- 1h 56m
- scheduled
- Distance
- 573 mi
Monthly on-time trend
Best time to fly from DEN to JMS
Aim for departures around 7 a.m. (92% on-time); avoid 2 p.m. departures (81%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 84% | 14 min |
| Tuesday | 83% | 10 min |
| Wednesdaybest | 93% | 3 min |
| Thursday | 85% | 8 min |
| Friday | 81% | 14 min |
| Saturday | 78% | 15 min |
| Sunday | 84% | 6 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft27%
- Airline operations52%
- National airspace system13%
- Weather8%
Frequently asked questions
- How often are flights from DEN to JMS delayed?
- 16% of DEN–JMS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 10 minutes.
- What is the best time of day to fly from DEN to JMS?
- Departures around 7 a.m. have the best record (92% on-time), while departures around 2 p.m. have the worst (81%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to JMS?
- The scheduled DEN–JMS flight time averages 1h 56m over 573 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
- How often are DEN to JMS flights cancelled?
- 1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to JMS?
- January 2025 was the roughest month in this dataset, with only 71% of arrivals on time. The best was November 2025 at 96%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 1,048 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.