Route on-time record
JMS to DEN: most on-time flights and the best time to fly
Jamestown (Jamestown Regional Airport) to Denver (Denver International Airport). 605 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 2.5% were cancelled. The most reliable flight number was SkyWest 5080 at 11:40 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
JMS → DEN
Jamestown to Denver: 605 nonstop flights a year
On time (12 months)
79%
Cancelled
2.5%
avg delay 21 min
Best time to leave
9 AM to noon
89% on time vs 70% 6 to 9 PM
Most reliable airline
SkyWest
77% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 5080 · sold as United Express, Delta Connection, American Eagle or Alaska
11:40 AM → 12:43 PM2h 03m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as SkyWest 5040; its record covers all of them.
83%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.7%
- Avg arrival delay
- 23 min
- Arrived on time 85% of the time (149 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 89% on time; 6 to 9 PM: 70%).
Moderate track record · 149 flights
Find 11:40 AM flight fares Opens this date on Aviasales#2 · SkyWest 5081 · sold as United Express, Delta Connection, American Eagle or Alaska
6:27 PM → 7:25 PM1h 58m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 68%
- Cancelled
- 0.0%
- Avg arrival delay
- 28 min
- Arrived on time 68% of the time (41 flights, Jun 2025 to May 2026).
- Never cancelled in 42 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 70% on time; 9 AM to noon: 89%).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 41 flights
Find 6:27 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)77%
605 flights · 79% on time as flown · 2.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon89%
247 flights · avg delay 16 min
- 6 to 9 PM70%
337 flights · avg delay 27 min
Best day: Wednesday (87%). Worst: Tuesday (69%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Air traffic control and airport volume32%
- Airline (crew, maintenance, boarding)26%
- Late-arriving aircraft25%
- Severe weather17%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
JMS to DEN questions
- What time of day is best to fly JMS to DEN?
- 9 AM to noon: 89% of flights arrived on time, against 70% for departures 6 to 9 PM.
- Which airline is most on time from JMS to DEN?
- SkyWest, with a season-adjusted 77% chance of operating and arriving on time over 605 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on JMS to DEN?
- July (76% on time); the best was November (90%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from JMS
Live status: FAA delays and ground stops