Historical on-time performance
New York to Denver
1,626 miData through Dec 2025Source: US DOT · BTS
Flights on JFK–DEN arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights
based on 1,502 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Delta Air LinesOn-time70%Medianon timep9075 minCancel2.0%Flights916
- JetBlue AirwaysOn-time66%Medianon timep9060 minCancel1.7%Flights586
Why flights run late
Delay causes
- Airline32%
- Weather1%
- Air traffic (NAS)36%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly JFK → DEN
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 80% on time.
- Mornings80% on time · p90 35 min · 1,654 flights
- Middays73% on time · p90 50 min · 230 flights
- Afternoons72% on time · p90 60 min · 827 flights
- Evenings67% on time · p90 75 min · 865 flights
- Overnights62% on time · p90 90 min · 999 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 79% on time.
- Tuesdays79% on time · p90 60 min · 618 flights
- Wednesdays75% on time · p90 55 min · 627 flights
- Mondays73% on time · p90 60 min · 678 flights
- Fridays72% on time · p90 60 min · 683 flights
- Thursdays70% on time · p90 70 min · 672 flights
- Saturdays68% on time · p90 65 min · 618 flights
- Sundays67% on time · p90 75 min · 679 flights
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