Historical on-time performance
Jacksonville to Denver
1,447 miData through May 2026Source: US DOT · BTS
Flights on JAX–DEN arrive on time 86% of the time over the last 12 months.
On-time rate86%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 945 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time88%Medianon timep9015 minCancel0.2%Flights599
- Southwest AirlinesOn-time81%Medianon timep9030 minCancel0.3%Flights346
Why flights run late
Delay causes
- Airline46%
- Weather3%
- Air traffic (NAS)23%
- Late aircraft28%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather0%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly JAX → DEN
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 90% on time.
- Mornings90% on time · p90 10 min · 1,365 flights
- Middays85% on time · p90 25 min · 361 flights
- Afternoons72% on time · p90 50 min · 974 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 86% on time.
- Wednesdays86% on time · p90 20 min · 382 flights
- Thursdays84% on time · p90 25 min · 404 flights
- Mondays83% on time · p90 25 min · 412 flights
- Tuesdays83% on time · p90 25 min · 388 flights
- Sundays82% on time · p90 35 min · 407 flights
- Saturdays81% on time · p90 35 min · 417 flights
- Fridays80% on time · p90 35 min · 411 flights
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