Route · ATL → MDT · 2020–2025 BTS data
Atlanta to Harrisburg
The ATL–MDT corridor (Atlanta, GA → Harrisburg, PA) runs ahead of the national average, served by 8 carriers across roughly 620 miles.
Data updated 2026-06-13
- 89.2%
- On-time
- +10.2 pts
- vs US avg
- 66 min
- Delay when late
- 5,417
- Flights
Cancelled
0.9%
Best Month
Feb 2024 97%
Worst Month
Jun 2025 68%
Distance
620 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 55 | 10 | 0 | 0 | DL |
| Nov 2025 | 83 | 15 | 1 | 0 | DL |
| Oct 2025 | 88 | 12 | 0 | 0 | DL |
| Sep 2025 | 81 | 9 | 0 | 0 | DL |
| Aug 2025 | 84 | 14 | 1 | 0 | DL |
| Jul 2025 | 88 | 21 | 1 | 1 | DL |
| Jun 2025 | 84 | 27 | 2 | 0 | DL |
| May 2025 | 87 | 18 | 0 | 0 | OO,DL |
| Apr 2025 | 86 | 12 | 0 | 0 | DL |
| Mar 2025 | 86 | 13 | 0 | 0 | DL |
| Feb 2025 | 77 | 15 | 0 | 0 | DL |
| Jan 2025 | 60 | 8 | 3 | 0 | DL |
| Dec 2024 | 88 | 14 | 0 | 0 | 9E,DL |
| Nov 2024 | 82 | 6 | 0 | 0 | DL,9E |
| Oct 2024 | 84 | 5 | 0 | 2 | DL |
| Sep 2024 | 81 | 9 | 0 | 2 | DL |
| Aug 2024 | 85 | 6 | 0 | 0 | DL |
| Jul 2024 | 85 | 20 | 5 | 0 | DL |
| Jun 2024 | 84 | 15 | 0 | 0 | DL |
| May 2024 | 88 | 14 | 1 | 0 | 9E,DL |
| Apr 2024 | 86 | 10 | 0 | 0 | 9E,DL |
| Mar 2024 | 88 | 8 | 0 | 0 | 9E,DL |
| Feb 2024 | 70 | 2 | 1 | 0 | 9E |
| Jan 2024 | 75 | 13 | 2 | 0 | 9E,DL |
Cancellation Rate
0.9%
17 of 1,955 flights
Diversion Rate
0.3%
5 of 1,955 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ATL - Atlanta
Full on-time, delay-cause, and seasonal performance for Atlanta, GA.
Origin airport →MDT - Harrisburg
Full on-time, delay-cause, and seasonal performance for Harrisburg, PA.
Destination airport →Compare the two airports
See ATL and MDT side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ATL–MDT.
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What the Data Says About ATL to MDT
Atlanta to Harrisburg (ATL to MDT) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89.2% on-time rate across 5,417 flights, with delays that do happen averaging 65.8 minutes. The corridor runs roughly 620 miles and is served by 8 carriers. Over the most recent 24 months, 17 of 1,955 flights were cancelled (0.9%) and 5 diverted (0.3%).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 97% on-time, while Jun 2025 came in at just 68% - a 29-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.