MDT to ATL flight delays & on-time performance
Nonstop flights from Harrisburg International Airport to Hartsfield Jackson Atlanta International Airport · 620 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MDT or ATL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Harrisburg (MDT) to Atlanta (ATL) arrived on time 86% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 2.4% were cancelled, and 5% arrived an hour or more late.
- Delta Air Lines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (91% on time); around 2pm did worst (66%).
- Wednesday was the most reliable day to fly (91% on time) and Sunday the least (81%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (59%).
Which airline is most on time from MDT to ATL?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 86% | 2.4% | 12 min | 4.8% | 1,002 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am91%350 flights
- 11am89%180 flights
- 12pm82%76 flights
- 1pm81%69 flights
- 2pm66%36 flights
- 5pm95%22 flights
- 6pm83%234 flights
- 7pm74%35 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday83%3.3% cancelled
- Tuesday85%1.3% cancelled
- Wednesday91%0.0% cancelled
- Thursday88%0.7% cancelled
- Friday85%1.3% cancelled
- Saturday88%3.8% cancelled
- Sunday81%6.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)59%
- Late-arriving aircraft26%
- Air traffic control & airport congestion13%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)75%
- Extreme weather25%
- Air traffic control & airport congestion0%
- Security0%
MDT to ATL: common questions
- How often are MDT to ATL flights on time?
- 86% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Harrisburg to Atlanta cancelled?
- 2.4% of scheduled flights were cancelled (24 of 1,002).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 81 min behind schedule on average, and 4.8% of flights were an hour or more late.
- How long is taxi time at MDT?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ATL to MDT — 81% on time
More flights from Harrisburg
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MDT → ATL, nonstop flights by US airlines that report to the DOT. How we calculate this.