Historical on-time performance
Harrisburg to Atlanta
620 miData through May 2026Source: US DOT · BTS
Flights on MDT–ATL arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled2.4%of scheduled flights
based on 974 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time83%Medianon timep9025 minCancel2.4%Flights974
Why flights run late
Delay causes
- Airline58%
- Weather8%
- Air traffic (NAS)12%
- Late aircraft23%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline65%
- Weather35%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 23 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 MDT → ATL
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 82% to 90% on time.
- Afternoons90% on time · p90 on time · 154 flights · limited
- Mornings88% on time · p90 10 min · 1,076 flights
- Middays84% on time · p90 30 min · 894 flights
- Evenings82% on time · p90 30 min · 839 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 89% on time.
- Wednesdays89% on time · p90 10 min · 442 flights
- Thursdays89% on time · p90 15 min · 441 flights
- Fridays86% on time · p90 25 min · 444 flights
- Saturdays86% on time · p90 20 min · 316 flights
- Tuesdays84% on time · p90 25 min · 442 flights
- Mondays82% on time · p90 30 min · 445 flights
- Sundays82% on time · p90 35 min · 433 flights
Keep exploring