Historical on-time performance
Jacksonville to Denver
1,447 miData through Dec 2025Source: US DOT · BTS
Flights on JAX–DEN arrive on time 85% of the time over the last 12 months.
On-time rate85%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 915 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.
- United AirlinesOn-time85%Medianon timep9025 minCancel0.2%Flights570
- Southwest AirlinesOn-time85%Medianon timep9020 minCancel0.6%Flights345
Why flights run late
Delay causes
- Airline38%
- Weather4%
- Air traffic (NAS)28%
- Late aircraft30%
- Security0%
Most delay minutes here are attributed to Airline.
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 (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 15 min · 1,298 flights
- Middays85% on time · p90 25 min · 384 flights
- Afternoons71% on time · p90 45 min · 784 flights
- Evenings69% on time · p90 85 min · 89 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 79% to 85% on time.
- Wednesdays85% on time · p90 20 min · 351 flights
- Thursdays84% on time · p90 25 min · 359 flights
- Sundays83% on time · p90 30 min · 375 flights
- Tuesdays82% on time · p90 25 min · 354 flights
- Mondays82% on time · p90 25 min · 384 flights
- Fridays80% on time · p90 35 min · 378 flights
- Saturdays79% on time · p90 35 min · 388 flights
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