Route
JFK → DEN
John F. Kennedy International Airport Denver International Airport
1,626 miles
Return route DEN → JFK →
How punctual is this route?
- On-time arrivals
- 71.4%
- Less than 15 minutes late
- Cancelled
- 3.4%
- Of scheduled flights
- Average delay when late
- 72 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,531
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 37%
- Air traffic control & airport 36%
- Late-arriving aircraft 24%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 88.1% | 119 |
| October 2025 | 68.8% | 143 |
| November 2025 | 68.5% | 127 |
| December 2025 | 60.0% | 157 |
| January 2026 | 78.8% | 103 |
| February 2026 | 78.5% | 101 |
| March 2026 | 64.9% | 136 |
| April 2026 | 75.4% | 118 |
| May 2026 | 79.3% | 124 |
| June 2026 | 74.1% | 137 |
| July 2026 | 69.0% | 141 |
| August 2026 | 58.3% | 125 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Delta Air Lines | 937 | 73.7% | 2.6% | 73 min |
| JetBlue Airways | 545 | 67.9% | 5.1% | 66 min |
| Frontier Airlines | 49 | 67.3% | 0.0% | 129 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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