Route on-time record
JFK to DEN: most on-time flights and the best time to fly
New York (John F. Kennedy International Airport) to Denver (Denver International Airport). 1,578 nonstop flights in Jun 2025 to May 2026, 70% arrived within 15 minutes and 2.5% were cancelled. The most reliable flight number was Delta 532 at 8:45 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
JFK → DEN
New York to Denver: 1,578 nonstop flights a year
On time (12 months)
70%
Cancelled
2.5%
avg delay 22 min
Best time to leave
Before 9 AM
81% on time vs 58% 3 to 6 PM
Most reliable airline
Delta
69% chance on time
Lowest nonstop fare seen in the next two months: $162 (JetBlue 1497 on 2026-10-24). 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 · Delta 532
8:45 AM → 11:25 AM4h 40m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 84%
- Cancelled
- 4.7%
- Avg arrival delay
- 10 min
- Arrived on time 84% of the time (162 flights, Jun 2025 to May 2026).
- Cancelled 4.7% of the time (8 of 170).
- Leaves in this route's most on-time window (Before 9 AM: 81% on time; 3 to 6 PM: 58%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Moderate track record · 162 flights
Find Delta 532 fares Opens this date on Aviasales#2 · JetBlue 1497
9:30 AM → 12:08 PM4h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
- On time (history)
- 81%
- Cancelled
- 1.3%
- Avg arrival delay
- 10 min
- Arrived on time 81% of the time (156 flights, Jun 2025 to May 2026).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Moderate track record · 156 flights
Find JetBlue 1497 fares Opens this date on Aviasales#3 · JetBlue 1297
11:18 AM → 1:55 PM4h 37m nonstop
Local times, typical schedule. Last flown 2026-03-28.
70%
chance on time
- On time (history)
- 72%
- Cancelled
- 3.8%
- Avg arrival delay
- 15 min
- Arrived on time 72% of the time (126 flights, Jun 2025 to May 2026).
- Cancelled 3.8% of the time (5 of 131).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Moderate track record · 126 flights
Find JetBlue 1297 fares Opens this date on Aviasales#4 · Delta 457
4:59 PM → 7:36 PM4h 47m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 74%
- Cancelled
- 3.1%
- Avg arrival delay
- 16 min
- Arrived on time 74% of the time (153 flights, Jun 2025 to May 2026).
- Cancelled 3.1% of the time (5 of 159).
- Leaves in this route's least on-time window (3 to 6 PM: 58% on time; Before 9 AM: 81%).
- Departs inside JFK's trouble window: 66% of its 167 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 153 flights
Find Delta 457 fares Opens this date on Aviasales#5 · Delta 424
7:10 PM → 9:46 PM4h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
64%
chance on time
- On time (history)
- 65%
- Cancelled
- 2.5%
- Avg arrival delay
- 30 min
- Arrived on time 65% of the time (272 flights, Jun 2025 to May 2026).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Strong track record · 272 flights
Find Delta 424 fares Opens this date on Aviasales#6 · JetBlue 97
8:12 PM → 11:04 PM4h 46m nonstop
Local times, typical schedule. Last flown 2026-05-31.
58%
chance on time
- On time (history)
- 58%
- Cancelled
- 2.4%
- Avg arrival delay
- 26 min
- Arrived on time 58% of the time (248 flights, Jun 2025 to May 2026).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Strong track record · 248 flights
Find JetBlue 97 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines69%
984 flights · 71% on time as flown · 2.7% cancel
- Frontier Airlines68%
49 flights · 67% on time as flown · 1.9% cancel
- JetBlue67%
545 flights · 68% on time as flown · 2.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM81%
604 flights · avg delay 12 min
- 3 to 6 PM58%
301 flights · avg delay 31 min
- 6 to 9 PM64%
593 flights · avg delay 26 min
Best day: Tuesday (82%). Worst: Sunday (68%).
Smarter routing
Nearby airports that run more on time
EWR → DEN 77% chance on time
Newark Liberty International Airport to Denver International Airport · 3,299 flights a year · 21 mi from your airports · yours: 68%
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 volume38%
- Airline (crew, maintenance, boarding)33%
- Late-arriving aircraft28%
- Severe weather1%
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
JFK to DEN questions
- What time of day is best to fly JFK to DEN?
- Before 9 AM: 81% of flights arrived on time, against 58% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from JFK to DEN?
- Delta, with a season-adjusted 69% chance of operating and arriving on time over 984 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 JFK to DEN?
- July (58% on time); the best was September (82%), 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 JFK
- DEN to JFK (return)
- JFK to LAX 78%
- JFK to SFO 75%
- JFK to BOS 73%
- JFK to MCO 73%
- JFK to MIA 76%
- JFK to ATL 76%
- JFK to FLL 72%
- JFK to LAS 80%
- JFK to PHX 78%
- JFK to SEA 68%
- JFK to DCA 67%
- JFK to SAN 79%
Live status: FAA delays and ground stops