Historical on-time performance
Dallas to San Jose
1,450 miData through Dec 2025Source: US DOT · BTS
Flights on DAL–SJC 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)
Cancelled1.6%of scheduled flights
based on 571 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time75%Medianon timep9040 minCancel1.6%Flights571
Why flights run late
Delay causes
- Airline30%
- Weather2%
- Air traffic (NAS)5%
- Late aircraft63%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DAL → SJC
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 65% to 89% on time.
- Mornings89% on time · p90 15 min · 731 flights
- Afternoons87% on time · p90 20 min · 91 flights · limited
- Middays86% on time · p90 35 min · 69 flights · limited
- Evenings67% on time · p90 60 min · 395 flights
- Overnights65% on time · p90 55 min · 551 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 83% on time.
- Fridays83% on time · p90 35 min · 298 flights
- Tuesdays79% on time · p90 35 min · 258 flights
- Sundays78% on time · p90 35 min · 250 flights
- Thursdays76% on time · p90 35 min · 297 flights
- Mondays74% on time · p90 45 min · 298 flights
- Wednesdays73% on time · p90 40 min · 257 flights
- Saturdays72% on time · p90 45 min · 179 flights · limited
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