Historical on-time performance
Miami to San Diego
2,267 miData through May 2026Source: US DOT · BTS
Flights on MIA–SAN arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 588 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time75%Medianon timep9045 minCancel1.0%Flights588
Why flights run late
Delay causes
- Airline26%
- Weather6%
- Air traffic (NAS)35%
- Late aircraft32%
- Security1%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline17%
- Weather67%
- Air traffic (NAS)17%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 6 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 MIA → 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 — 89% on time.
- Mornings89% on time · p90 10 min · 273 flights
- Afternoons70% on time · p90 65 min · 220 flights
- Overnights65% on time · p90 75 min · 437 flights
- Evenings60% on time · p90 60 min · 724 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 60% to 71% on time.
- Wednesdays71% on time · p90 45 min · 234 flights
- Tuesdays71% on time · p90 50 min · 234 flights
- Mondays69% on time · p90 75 min · 235 flights
- Saturdays68% on time · p90 55 min · 237 flights
- Fridays67% on time · p90 55 min · 238 flights
- Sundays66% on time · p90 65 min · 238 flights
- Thursdays60% on time · p90 65 min · 238 flights
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