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Route Reliability

Atlanta → MDT

ATL–MDT · 620 miles · Hartsfield–Jackson Atlanta International Airport to MDT Airport

79
Usually Fine
WanderNerd Reliability Score
81%
Arrive within 15 minutes
6 min
Average arrival delay
2.4%
Cancelled
1,033
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 81% of the time across 1,033 flights. No comparison to make.

What the data says

The late departure is the smart one here.

ATL–MDT flights departing between 6–9 PM arrived on time 90% of the time, versus 78% between 9 PM–12 AM.

Skip Monday if you can.

ATL–MDT flights arrived on time 86% of the time on Wednesdays. On Mondays: 75%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon75%(153 flights)
  • Tue83%(155 flights)
  • Wed86%(153 flights)
  • Thu83%(149 flights)
  • Fri81%(147 flights)
  • Sat83%(107 flights)
  • Sun80%(143 flights)
On-time by departure window
  • 6–9 AM88%(16 flights)
  • 9 AM–12 PM87%(336 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM79%(297 flights)
  • 6–9 PM90%(20 flights)
  • 9 PM–12 AM78%(334 flights)
On-time trend by month
92%
May

Jun 69% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%87
July 202574%89
August 202584%88
September 202590%82
October 202586%88
November 202583%82
December 202580%83
January 202678%78
February 202684%76
March 202671%86
April 202687%84
May 202692%84

Keep nerding

Based on 1,033 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.