MKE to ATL flight delays & on-time performance
Nonstop flights from General Mitchell International Airport to Hartsfield Jackson Atlanta International Airport · 669 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MKE or ATL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Milwaukee (MKE) to Atlanta (ATL) arrived on time 89% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 2% were cancelled, and 5% arrived an hour or more late.
- Departures scheduled around 6am did best (96% on time); around 6pm did worst (82%).
- Wednesday was the most reliable day to fly (92% on time) and Sunday the least (83%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).
Which airline is most on time from MKE 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 | 89% | 2.0% | 11 min | 4.4% | 2,202 |
| Frontier Airlines | 67% | 1.6% | 20 min | 11.5% | 62 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am91%363 flights
- 6am96%69 flights
- 7am88%298 flights
- 10am93%368 flights
- 11am83%55 flights
- 12pm90%290 flights
- 2pm86%167 flights
- 3pm88%149 flights
- 4pm83%114 flights
- 5pm87%162 flights
- 6pm82%208 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday87%5.3% cancelled
- Tuesday91%0.3% cancelled
- Wednesday92%0.0% cancelled
- Thursday91%0.0% cancelled
- Friday88%1.6% cancelled
- Saturday88%3.0% cancelled
- Sunday83%3.4% 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)41%
- Late-arriving aircraft29%
- Air traffic control & airport congestion18%
- Extreme weather12%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)80%
- Extreme weather20%
- Air traffic control & airport congestion0%
- Security0%
MKE to ATL: common questions
- How often are MKE to ATL flights on time?
- 89% 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 Milwaukee to Atlanta cancelled?
- 2.0% of scheduled flights were cancelled (46 of 2,264).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 91 min behind schedule on average, and 4.6% of flights were an hour or more late.
- How long is taxi time at MKE?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ATL to MKE — 82% on time
More flights from Milwaukee
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MKE → ATL, nonstop flights by US airlines that report to the DOT. How we calculate this.