Historical on-time performance
Atlanta to San Diego
1,891 miData through Dec 2025Source: US DOT · BTS
Flights on ATL–SAN arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 2,433 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.
- Delta Air LinesOn-time73%Medianon timep9045 minCancel0.7%Flights2,158
- Alaska AirlinesOn-time74%Medianon timep9040 minCancel0.0%Flights275
Why flights run late
Delay causes
- Airline40%
- Weather9%
- Air traffic (NAS)26%
- Late aircraft25%
- 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 ATL → SAN
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 68% to 80% on time.
- Mornings80% on time · p90 25 min · 1,365 flights
- Middays80% on time · p90 25 min · 1,553 flights
- Afternoons74% on time · p90 40 min · 1,426 flights
- Overnights69% on time · p90 50 min · 973 flights
- Evenings68% on time · p90 50 min · 1,794 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 79% on time.
- Tuesdays79% on time · p90 25 min · 952 flights
- Wednesdays77% on time · p90 35 min · 958 flights
- Saturdays76% on time · p90 40 min · 1,003 flights
- Mondays75% on time · p90 40 min · 1,050 flights
- Fridays73% on time · p90 40 min · 1,041 flights
- Thursdays71% on time · p90 45 min · 1,039 flights
- Sundays70% on time · p90 45 min · 1,068 flights
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