OnTimeRoutes
F

Frontier Airlines ATL to MKE on-time performance

Frontier Airlines nonstop flights from Atlanta to Milwaukee · Aug 2025 – Jul 2026

On-time arrivals
52%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
21 min
44 min when late
Rank on route
#2 of 2
route average 82% on time

Key facts

  • Frontier Airlines flights on ATL to MKE arrived on time 52% of the time in Aug 2025 – Jul 2026.
  • 0% were cancelled, and 13% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 82% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (56%).

On-time trend by month

20%60%100%December 2025: 75.0% on time, 0.0% cancelledDec ’25January 2026: 66.7% on time, 0.0% cancelledJan ’26February 2026: 37.5% on time, 0.0% cancelledFeb ’26March 2026: 37.5% on time, 0.0% cancelledMar ’26April 2026: 75.0% on time, 0.0% cancelledApr ’26May 2026: 46.7% on time, 0.0% cancelledMay ’26June 2026: 44.4% on time, 0.0% cancelledJun ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft56%
  • Airline (crew, maintenance, cleaning, fueling)27%
  • Air traffic control & airport congestion17%
  • Extreme weather0%
  • Security0%

Other airlines on ATL to MKE

62 Frontier Airlines flights tracked on this route; 0 cancelled, 1 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.