BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
JFK→DEN

New York, NY (JFK) to Denver, CO (DEN) flight delay odds

69.5% of 1,572 official scheduled JFK-to-DEN flights arrived on time; 18.6% arrived at least 30 minutes late and 2.5% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
69.5%arrived on time
18.6%30+ min late
2.5%cancelled
1,572scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.2%all scheduled flights
120+ minutes late3.4%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+10.1 mincompleted flights

Which departure time was most reliable for JFK to DEN?

Among qualifying JFK-to-DEN departure window results, Late morning had the highest on-time rate: 81.2% of 64 flights. Afternoon was lowest at 62.2% across 315 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning58578.5%11.1%2.4%
Late morning6481.2%6.2%4.7%
Afternoon31562.2%23.5%1.9%
Evening59763.3%24.6%2.8%

Which weekday was most reliable for JFK to DEN?

Among qualifying JFK-to-DEN weekday results, Tuesday had the highest on-time rate: 82.6% of 219 flights. Sunday was lowest at 61.7% across 230 flights.

DayFlightsOn time30+ minCancelled
Monday23966.9%19.2%5.0%
Tuesday21982.6%11.4%1.4%
Wednesday22075.9%17.3%0.9%
Thursday22867.5%21.5%1.8%
Friday23667.8%18.6%2.1%
Saturday20064.0%18.0%3.5%
Sunday23061.7%23.9%3.0%

Which airline was most reliable for JFK to DEN?

Among qualifying JFK-to-DEN airline results, Delta Air Lines had the highest on-time rate: 71.1% of 978 flights. JetBlue Airways was lowest at 66.8% across 545 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines97871.1%17.7%2.6%
JetBlue Airways54566.8%19.8%2.8%
Frontier Airlines4967.3%24.5%0.0%

Which month was most reliable for JFK to DEN?

Among qualifying JFK-to-DEN month results, September 2025 had the highest on-time rate: 87.4% of 119 flights. July 2025 was lowest at 51.0% across 153 flights.

MonthFlightsOn time30+ minCancelled
July 202515351.0%30.1%7.2%
August 202515473.4%17.5%1.3%
September 202511987.4%8.4%0.0%
October 202514367.8%21.7%1.4%
November 202512768.5%18.9%0.0%
December 202515757.3%28.0%4.5%
January 202610375.7%14.6%3.9%
February 202610172.3%15.8%7.9%
March 202613664.0%20.6%1.5%
April 202611875.4%12.7%0.0%
May 202612477.4%12.1%1.6%
June 202613773.0%16.1%1.5%

What drove JFK to DEN delay minutes?

National airspace was the largest recorded JFK-to-DEN delay category, accounting for 38.2% of 29,246 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.8%
Late aircraft25.1%
National airspace38.2%
Weather1.9%
Security0.1%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.