Airport · ATL · Atlanta, Georgia
Atlanta, GA
Atlanta, GA posts above-median on-time performance among the 382 tracked U.S. airports, as one of the busiest U.S. airports. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 3,758,561 flights (2020–2025); its biggest delay driver is carrier.
Data updated 2026-06-13
- 83.7%
- On-time
- Top 46%
- on-time, US airports
- 73 min
- Delay when late
- 0.79%
- Cancelled
Key Performance Metrics
Total Flights
3,758,561
Best Month
Nov 93.6%
Worst Month
Jul 86.7%
Delayed
613,025
Cancelled
29,771
ATL on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Where ATL sits among all 382 tracked airports
ATL's 83.7% on-time rate falls in the 80-85% band, the 192-airport band it shares.
National on-time-rate distribution
- 60-65% 1
1 airport between 60% and 65% on-time
1 airports
- 65-70% 4
4 airports between 65% and 70% on-time
4 airports
- 70-75% 9
9 airports between 70% and 75% on-time
9 airports
- 75-80% 48
48 airports between 75% and 80% on-time
48 airports
- 80-85%
192 airports between 80% and 85% on-time
192 airports
- 85-90%
116 airports between 85% and 90% on-time
116 airports
- 90-95% 12
12 airports between 90% and 95% on-time
12 airports
What this shows ATL is marked in the 80-85% band.
Delay Cause Breakdown
Top delay cause: Carrier. Total delay minutes: 20,227,545.
ATL - seasonal on-time pattern
Best: November (93.6%) · worst: July (86.7%)
Seasonal Performance Patterns
Monthly averages across all years of data. Best month: November (93.6% on-time). Most delays: July (86.7% on-time).
| Month | Avg Flights | Avg Delayed | Avg Cancelled | On-Time % |
|---|---|---|---|---|
| December | 52,960 | 9,378 | 322 | 90.4% |
| November | 52,245 | 6,306 | 177 | 93.6% |
| October | 54,404 | 6,406 | 112 | 93.5% |
| September | 51,930 | 6,059 | 145 | 93.6% |
| August | 54,545 | 9,663 | 305 | 90.2% |
| July | 54,329 | 12,974 | 526 | 86.7% |
| June | 50,326 | 10,831 | 357 | 87.8% |
| May | 49,758 | 9,159 | 195 | 89.8% |
| April | 48,848 | 7,737 | 886 | 91.2% |
| March | 56,563 | 8,596 | 1,261 | 91.7% |
| February | 48,276 | 6,817 | 201 | 92.7% |
| January | 52,246 | 8,246 | 475 | 91.7% |
Year-Over-Year Performance
Annual flight volume and on-time trends at ATL.
ATL - on-time rate by year
2020–2025, year-over-year trend.
| Year | Flights | Delayed | Cancelled | On-Time % |
|---|---|---|---|---|
| 2025 | 628,872 | 73,093 | 4,536 | 88.4% |
| 2024 | 683,735 | 66,882 | 3,410 | 90.2% |
| 2023 | 672,921 | 69,026 | 2,768 | 89.7% |
| 2022 | 635,836 | 61,409 | 4,982 | 90.3% |
| 2021 | 626,591 | 44,523 | 2,093 | 92.9% |
| 2020 | 510,606 | 20,530 | 11,982 | 96% |
Cancellation & Diversion Analysis
Flight disruption statistics for Atlanta, GA.
Cancellation Rate
0.79%
29,771 of 3,758,561 flights
Diversion Rate
0.11%
4,130 of 3,758,561 flights
Delay Rate
16.3%
613,025 of 3,758,561 flights
Monthly Performance
Recent 24 months of flight data.
| Period | Flights | Dep Delayed | Arr Delayed | Cancelled | Diverted |
|---|---|---|---|---|---|
| Dec 2025 | 51,545 | 6,953 | 5,401 | 614 | 57 |
| Nov 2025 | 51,759 | 4,894 | 4,095 | 635 | 44 |
| Oct 2025 | 55,109 | 4,837 | 3,861 | 56 | 49 |
| Sep 2025 | 51,689 | 3,439 | 2,531 | 19 | 55 |
| Aug 2025 | 54,713 | 5,972 | 4,579 | 233 | 78 |
| Jul 2025 | 57,099 | 8,742 | 6,551 | 453 | 129 |
| Jun 2025 | 55,452 | 9,509 | 7,174 | 697 | 112 |
| May 2025 | 54,559 | 7,409 | 6,137 | 95 | 82 |
| Apr 2025 | 50,984 | 5,476 | 4,486 | 219 | 48 |
| Mar 2025 | 52,923 | 5,697 | 4,465 | 192 | 77 |
| Feb 2025 | 45,278 | 5,041 | 4,336 | 75 | 49 |
| Jan 2025 | 47,762 | 5,124 | 4,486 | 1,248 | 53 |
| Dec 2024 | 58,019 | 6,563 | 5,766 | 70 | 87 |
| Nov 2024 | 56,017 | 3,738 | 3,362 | 23 | 53 |
| Oct 2024 | 59,689 | 3,490 | 2,903 | 256 | 36 |
| Sep 2024 | 56,495 | 4,366 | 4,059 | 235 | 45 |
| Aug 2024 | 58,962 | 5,987 | 5,024 | 305 | 90 |
| Jul 2024 | 60,144 | 10,227 | 8,866 | 1,778 | 99 |
| Jun 2024 | 58,714 | 6,177 | 4,958 | 143 | 86 |
| May 2024 | 59,738 | 7,525 | 6,686 | 173 | 104 |
| Apr 2024 | 56,813 | 5,033 | 4,258 | 57 | 63 |
| Mar 2024 | 56,912 | 5,375 | 4,597 | 77 | 45 |
| Feb 2024 | 49,623 | 2,973 | 2,804 | 21 | 50 |
| Jan 2024 | 52,609 | 5,428 | 5,377 | 272 | 80 |
Top Routes from ATL
Busiest routes to and from Atlanta, GA.
Airports With a Similar On-Time Rate
Other U.S. airports nationwide whose on-time rate is closest to Atlanta, GA's 83.7%.
Other Airports in Georgia
Compare performance with other Georgia airports.
Keep exploring
More flight data around Atlanta, GA.
Georgia flight data
Statewide on-time and delay aggregates, plus every reporting airport in Georgia.
View GA data →Airport rankings
See where ATL sits among U.S. airports on on-time rate and average delay.
Best on-time airports →Compare airports
Put ATL head-to-head with another airport on delays and reliability.
Open comparison tool →What the Data Says About ATL
Atlanta, GA in Atlanta, Georgia handled 3,758,561 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 83.7% on-time departure rate. Of those flights, 613,025 experienced delays, 29,771 were cancelled, and 4,130 were diverted. The cancellation rate works out to 0.79%, the diversion rate to 0.11%, and the average delay when departures run late is 72.9 minutes. These figures are the baseline for comparing ATL against other airports in the same state and nationally.
Breaking down what drives delays at ATL, Carrier leads the pack. Carrier accounts for 46.8% of total delay minutes, followed by Late Aircraft at 27.2% and NAS (National Aviation System) at 19.4%. Weather contributes 6.4% of delay minutes at this airport, while security holds the smallest share at 0.2%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.
Seasonally, November runs the cleanest at ATL with a 93.6% on-time rate, while July is the roughest at 86.7% - a 7-point swing between best and worst month. Volume peaks in March, when average flights hit 56,563. The busiest route connecting ATL is to MCO (Orlando), with 47,291 flights at a 78.1% on-time rate. Combine these numbers - 83.7% on-time, 72.9-minute average delay, 0.79% cancellation rate, and you have a concrete picture of departure reliability at Atlanta, GA.
Frequently Asked Questions
What is the on-time performance rate at Atlanta, GA (ATL)? ▼
What is the most common cause of delays at ATL? ▼
What is the average delay time at ATL? ▼
What is the best month to fly from ATL? ▼
What is the worst month for delays at ATL? ▼
How many routes operate from ATL? ▼
What is the cancellation rate at ATL? ▼
Flight Guides
Data-driven guides to help you understand airport and flight performance.
Explore PlainFlights
Read our methodology - how this data is sourced, computed, and verified.
Using ATL's data
An airport-level on-time rate is a starting point, not a guarantee for your specific flight.
- Check the busiest route from ATL before you book a connection. See top routes
- Travel in November rather than July if your dates are flexible. Seasonal patterns
- Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Related
Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.