Historical on-time performance
Dallas to San Diego
1,182 miData through Dec 2025Source: 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 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 1,588 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 timep9045 minCancel1.3%Flights1,588
Why flights run late
Delay causes
- Airline36%
- Weather3%
- Air traffic (NAS)16%
- Late aircraft44%
- Security1%
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 → SAN
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 — 88% on time.
- Mornings88% on time · p90 15 min · 1,350 flights
- Middays75% on time · p90 35 min · 1,078 flights
- Evenings68% on time · p90 45 min · 645 flights
- Afternoons66% on time · p90 50 min · 700 flights
- Overnights54% on time · p90 75 min · 707 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 78% on time.
- Saturdays78% on time · p90 40 min · 499 flights
- Tuesdays77% on time · p90 35 min · 644 flights
- Wednesdays75% on time · p90 35 min · 642 flights
- Mondays74% on time · p90 40 min · 689 flights
- Thursdays70% on time · p90 45 min · 680 flights
- Sundays70% on time · p90 45 min · 639 flights
- Fridays70% on time · p90 50 min · 687 flights
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