Historical on-time performance
Atlanta to Chattanooga
106 miData through May 2026Source: US DOT · BTS
Flights on ATL–CHA arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled2.5%of scheduled flights
based on 1,330 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time78%Medianon timep9045 minCancel2.5%Flights1,330
Why flights run late
Delay causes
- Airline43%
- Weather7%
- Air traffic (NAS)12%
- Late aircraft37%
- Security1%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline58%
- Weather42%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 33 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 ATL → CHA
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 78% to 88% on time.
- Mornings88% on time · p90 15 min · 763 flights
- Middays87% on time · p90 20 min · 1,475 flights
- Afternoons80% on time · p90 40 min · 1,081 flights
- Evenings79% on time · p90 45 min · 804 flights
- Overnights78% on time · p90 55 min · 1,524 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 86% on time.
- Wednesdays86% on time · p90 25 min · 785 flights
- Thursdays84% on time · p90 35 min · 833 flights
- Tuesdays84% on time · p90 35 min · 798 flights
- Saturdays83% on time · p90 30 min · 738 flights
- Mondays83% on time · p90 35 min · 840 flights
- Fridays79% on time · p90 45 min · 823 flights
- Sundays76% on time · p90 45 min · 830 flights
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