Historical on-time performance
Dallas to San Diego
1,182 miData through May 2026Source: US DOT · BTS
Flights on DAL–SAN arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 1,576 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time74%Medianon timep9040 minCancel1.1%Flights1,576
Why flights run late
Delay causes
- Airline35%
- Weather3%
- Air traffic (NAS)19%
- Late aircraft43%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline17%
- Weather61%
- Air traffic (NAS)22%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 18 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 DAL → SAN
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 — 88% on time.
- Mornings88% on time · p90 15 min · 1,335 flights
- Middays74% on time · p90 35 min · 1,153 flights
- Evenings69% on time · p90 45 min · 675 flights
- Afternoons66% on time · p90 50 min · 736 flights
- Overnights53% on time · p90 80 min · 654 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 78% on time.
- Saturdays78% on time · p90 40 min · 503 flights
- Tuesdays77% on time · p90 35 min · 642 flights
- Mondays76% on time · p90 35 min · 703 flights
- Wednesdays75% on time · p90 35 min · 639 flights
- Fridays69% on time · p90 50 min · 710 flights
- Thursdays69% on time · p90 50 min · 702 flights
- Sundays69% on time · p90 50 min · 654 flights
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