Historical on-time performance
San Jose to Atlanta
2,116 miData through May 2026Source: US DOT · BTS
Flights on SJC–ATL arrive on time 91% of the time over the last 12 months.
On-time rate91%arrived within 15 min
p90 delay5 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 900 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time91%Medianon timep905 minCancel1.3%Flights900
Why flights run late
Delay causes
- Airline55%
- Weather4%
- Air traffic (NAS)19%
- Late aircraft23%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline75%
- Weather25%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 12 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 SJC → ATL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 90% to 93% on time.
- Mornings93% on time · p90 on time · 974 flights
- Overnights91% on time · p90 5 min · 512 flights
- Middays90% on time · p90 10 min · 1,007 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 87% to 95% on time.
- Thursdays95% on time · p90 5 min · 394 flights
- Wednesdays94% on time · p90 on time · 344 flights
- Tuesdays93% on time · p90 5 min · 343 flights
- Mondays92% on time · p90 5 min · 375 flights
- Sundays90% on time · p90 10 min · 390 flights
- Saturdays89% on time · p90 10 min · 288 flights
- Fridays87% on time · p90 15 min · 397 flights
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