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Route Reliability

Atlanta → Milwaukee

ATL–MKE · 669 miles · Hartsfield–Jackson Atlanta International Airport to Milwaukee Mitchell International Airport

83
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
3 min
Average arrival delay
1.9%
Cancelled
2,262
Flights in the data

Data through May 2026.

Airlines on this route

  • Delta Air Lines84% on time · 2,209 flights
  • Frontier Airlines56% on time · 53 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning-you made the right choice.

ATL–MKE flights departing between 6–9 AM arrived on time 90% of the time, versus 74% between 6–9 PM.

Skip Monday if you can.

ATL–MKE flights arrived on time 88% of the time on Wednesdays. On Mondays: 77%.

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
  • Mon77%(345 flights)
  • Tue85%(294 flights)
  • Wed88%(295 flights)
  • Thu84%(328 flights)
  • Fri83%(344 flights)
  • Sat87%(282 flights)
  • Sun82%(324 flights)
On-time by departure window
  • 6–9 AM90%(357 flights)
  • 9 AM–12 PM89%(350 flights)
  • 12–3 PM88%(444 flights)
  • 3–6 PM80%(351 flights)
  • 6–9 PM74%(353 flights)
  • 9 PM–12 AM80%(357 flights)
On-time trend by month
84%
May

Jun 74% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%190
July 202582%198
August 202583%195
September 202591%187
October 202589%201
November 202588%173
December 202577%177
January 202683%160
February 202687%161
March 202678%171
April 202686%186
May 202684%213

Keep nerding

Based on 2,262 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.