ORD to MKE flight delays

ORD MKE Chicago O'Hare to General Mitchell · 67 miles

10,638 flights were scheduled from ORD to MKE over July 2023 through June 2026. Of the 10,321 that made the trip, 68.6% reached the gate less than 15 minutes behind schedule. These are arrival figures: “on time” means the flight reached the gate less than 15 minutes behind schedule. Arrivals are what decide whether you make the connection, so route and airline pages are scored on them rather than on pushback.

Data through June 2026 · Bureau of Transportation Statistics

The route in brief

Flights in the window
10,638
Arrived on time
68.6%
Cancelled
2.9%
Scheduled distance
67 miles

Cancellations are counted against everything scheduled. Diverted flights are counted with them rather than as very late arrivals, which is why the on-time share and the cancellation rate do not add up to everything that happened.

Airline by airline

Airlines with at least 100 flights on ORD–MKE, busiest first. Same route, same weather, same air traffic — which makes this the fairest comparison on the site.

Airline Arrived on time Typical delay Cancelled Flights
SkyWest Airlines 68.1% 86 min 2.8% 10,080
Republic Airways 83.9% 65 min 3.2% 314
Envoy Air 71.4% 62 min 4.7% 213

Month by month

December was the month to avoid on ORD–MKE: 61.5% of flights arrived on time, against 74.4% in September. Each bar pools three years of that calendar month.

Share of flights that arrived on time, by calendar month. Best month in green, worst in amber. The hairline sits at the overall rate, 68.6%.
Arrival on-time share, ORD to MKE, by calendar month
Month Share flights that arrived on time Flights
January 61.7% 745
February 66.9% 773
March 67% 896
April 72.1% 1,092
May 71.7% 1,084
June 64.5% 976
July 64.3% 826
August 69% 826
September 74.4% 821
October 74.3% 891
November 72.9% 899
December 61.5% 809

Both ends of the route

A route’s record is built out of two airports’ habits. The hour-by-hour grid for each is on its own page.

ORD to MKE in one number

ORD → MKE

When a flight on this route was late, it was late by about 85 min.

July 2023–June 2026 · 10,638 flights

68.6% of flights arrived on time

Questions about ORD to MKE

Which airline is most reliable from ORD to MKE?
Republic Airways — its flights on this pairing arrived on time 83.9% of the time, with 314 scheduled. SkyWest Airlines came in at 68.1% over 10,080 scheduled. Airlines with fewer than 100 flights on the route are not rated.
What is the worst month to fly ORD to MKE?
December, at 61.5% of arrivals on time, with 809 flights scheduled. September was the best of the year at 74.4%.
How late are ORD–MKE flights when they are late?
85 min on average, counting only the flights that arrived 15 minutes or more behind schedule. The on-time flights are left out of that average on purpose — mixing them in would flatter it.
How often is the ORD to MKE flight cancelled?
2.9% of scheduled flights on this route were cancelled, July 2023 through June 2026. Diverted flights are counted with the cancellations rather than as late arrivals.
Are these departure or arrival numbers?
Arrival. A flight counts as on time here if it reached the gate at MKE less than 15 minutes behind schedule. Airport pages score departures instead, because that is the number you can act on when you pick a booking time.