Historical on-time performance
Miami to San Diego
2,267 miData through Dec 2025Source: US DOT · BTS
Flights on MIA–SAN arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 566 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time71%Medianon timep9045 minCancel0.5%Flights566
Why flights run late
Delay causes
- Airline29%
- Weather6%
- Air traffic (NAS)28%
- Late aircraft37%
- 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 MIA → 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 — 93% on time.
- Mornings93% on time · p90 10 min · 122 flights · limited
- Afternoons70% on time · p90 65 min · 220 flights
- Overnights63% on time · p90 80 min · 518 flights
- Evenings60% on time · p90 65 min · 643 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 60% to 68% on time.
- Tuesdays68% on time · p90 50 min · 214 flights
- Wednesdays67% on time · p90 55 min · 214 flights
- Mondays67% on time · p90 75 min · 215 flights
- Fridays66% on time · p90 55 min · 215 flights
- Saturdays64% on time · p90 60 min · 214 flights
- Sundays63% on time · p90 85 min · 216 flights
- Thursdays60% on time · p90 70 min · 215 flights
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