Historical on-time performance
Atlanta to Chattanooga
106 miData through Dec 2025Source: US DOT · BTS
Flights on ATL–CHA arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights
based on 1,440 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-time77%Medianon timep9050 minCancel1.4%Flights1,225
- SkyWest AirlinesOn-time71%Medianon timep9070 minCancel1.9%Flights215
Why flights run late
Delay causes
- Airline50%
- Weather14%
- Air traffic (NAS)12%
- Late aircraft23%
- 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 → CHA
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 79% to 88% on time.
- Mornings88% on time · p90 15 min · 907 flights
- Middays87% on time · p90 20 min · 1,603 flights
- Afternoons81% on time · p90 40 min · 1,135 flights
- Evenings81% on time · p90 40 min · 899 flights
- Overnights79% on time · p90 50 min · 1,613 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 87% on time.
- Wednesdays87% on time · p90 20 min · 856 flights
- Tuesdays85% on time · p90 35 min · 865 flights
- Thursdays84% on time · p90 30 min · 914 flights
- Saturdays84% on time · p90 30 min · 795 flights
- Mondays84% on time · p90 30 min · 923 flights
- Fridays80% on time · p90 40 min · 904 flights
- Sundays78% on time · p90 40 min · 900 flights
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