Historical on-time performance
Denver to Jacksonville
1,447 miData through May 2026Source: US DOT · BTS
Flights on DEN–JAX arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.0%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-time80%Medianon timep9035 minCancel0.0%Flights599
- Southwest AirlinesOn-time68%Median5 minp9045 minCancel0.0%Flights346
Why flights run late
Delay causes
- Airline30%
- Weather2%
- Air traffic (NAS)25%
- Late aircraft44%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline42%
- Weather54%
- Air traffic (NAS)4%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 24 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 DEN → JAX
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 — 81% on time.
- Mornings81% on time · p90 30 min · 646 flights
- Middays76% on time · p90 30 min · 530 flights
- Afternoons75% on time · p90 40 min · 529 flights
- Evenings64% on time · p90 65 min · 1,115 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 75% on time.
- Wednesdays75% on time · p90 40 min · 394 flights
- Tuesdays74% on time · p90 45 min · 383 flights
- Mondays72% on time · p90 45 min · 406 flights
- Thursdays72% on time · p90 40 min · 404 flights
- Fridays72% on time · p90 50 min · 411 flights
- Saturdays71% on time · p90 45 min · 417 flights
- Sundays70% on time · p90 45 min · 407 flights
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