ATL vs CHA - Airport Comparison

Select two airports to compare on-time performance, delays, cancellations, and top routes using U.S. Department of Transportation Bureau of Transportation Statistics (BTS) data (2020–2025) across all 50 states. See our methodology for how metrics are computed.

Airport A

Airport B

Airport A

ATL

Atlanta, GA

Atlanta, Georgia

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Airport B

CHA

Chattanooga, TN

Chattanooga, Tennessee

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Key Performance Metrics

BTS on-time performance data, 2020–2025 cumulative.

Metric	ATL	CHA
On-Time Rate (higher is better)	83.7% ✓	83.6%
Avg Delay (lower is better)	72.9 min ✓	81.4 min
Delay Rate (lower is better)	16.3% ✓	16.4%
Cancellation Rate (lower is better)	0.79% ✓	0.98%
Total Flights	3,758,561 ▲	66,136
Delayed Flights	613,025	10,835
Cancelled Flights	29,771	646
Top Delay Cause	Carrier	Carrier

✓ / ▲ indicates the more favorable value. Data: BTS On-Time Performance, 2020–2025.

Delay Cause Breakdown

ATL - Atlanta, GA

Carrier 46.8%

Late Aircraft 27.2%

NAS 19.4%

Weather 6.4%

Security 0.2%

CHA - Chattanooga, TN

Carrier 40.4%

Late Aircraft 37.1%

NAS 14.5%

Weather 7.9%

Security 0.1%

Top Routes

Top routes from ATL

Route	Flights	On-Time
MCO → ATL Atlanta	47,291	78.1%
ATL → MCO Orlando	47,234	76.2%
FLL → ATL Atlanta	42,458	77.5%
ATL → FLL Fort Lauderdale	42,441	77.2%
ATL → LGA New York	42,079	80.8%
LGA → ATL Atlanta	42,078	82.2%

Top routes from CHA

Route	Flights	On-Time
ATL → CHA Chattanooga	13,429	87.3%
CHA → ATL Atlanta	13,428	89.3%
DFW → CHA Chattanooga	6,834	82.4%
CHA → DFW Dallas/Fort Worth	6,832	80.6%
CHA → CLT Charlotte	4,399	83.5%
CLT → CHA Chattanooga	4,399	81.3%

Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) On-time rates exclude cancelled and diverted flights. PlainFlights is not affiliated with BTS or the DOT

Compiled by PlainFlights Editorial, Flight Performance Editorial Team

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This tool queries live on-time, delay, and cancellation figures for the two selected airports from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.