Historical on-time performance
San Diego to Baltimore
2,295 miData through Dec 2025Source: US DOT · BTS
Flights on SAN–BWI arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 1,003 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time83%Medianon timep9025 minCancel1.1%Flights1,003
Why flights run late
Delay causes
- Airline27%
- Weather0%
- Air traffic (NAS)22%
- Late aircraft50%
- 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 SAN → BWI
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 66% to 91% on time.
- Overnights91% on time · p90 10 min · 301 flights
- Mornings89% on time · p90 15 min · 895 flights
- Evenings79% on time · p90 30 min · 114 flights · limited
- Afternoons72% on time · p90 50 min · 504 flights
- Middays66% on time · p90 50 min · 774 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.
- Saturdays84% on time · p90 20 min · 319 flights
- Tuesdays82% on time · p90 35 min · 384 flights
- Wednesdays79% on time · p90 30 min · 381 flights
- Mondays78% on time · p90 30 min · 387 flights
- Thursdays76% on time · p90 30 min · 382 flights
- Fridays76% on time · p90 40 min · 386 flights
- Sundays75% on time · p90 45 min · 349 flights
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