MKE to ORD flight delays
Milwaukee, WI (MKE) Chicago, IL (ORD) · 67 miles
5,202 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
67.42%
Arrived on time
Within 15 minutes of schedule
4.33%
Cancelled
Share of scheduled flights
94 min
When late, late by
Average across delayed arrivals
32 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Cancellation, not delay, is the risk worth pricing here: 4.33% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
This route does worse than its own airport. MKE as a whole runs 12.1 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
This is a late route. Flights from Milwaukee to Chicago miss their scheduled arrival often enough that a tight connection at the far end is a connection at risk.
This is one of the heavily flown routes in the record — 5,202 flights in the period. Frequency is itself a form of insurance: when a flight goes wrong there is another one within hours, which is not true of the thin routes elsewhere on this site.
Which airline should you fly on this route?
Over January 2025 – August 2026, Republic Airways arrived on time most often on MKE to ORD. SkyWest Airlines was late most often. Flights ran closest to schedule in February and worst in July.
Every airline on MKE to ORD
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 4,932 | 67.29% | 4.12% | 94 min | F |
| Envoy Air | 130 | 69.67% | 6.15% | 74 min | F |
| Republic Airways | 113 | 73.08% | 7.96% | 86 min | F |
| PSA Airlines | 26 | 54.55% | 15.38% | 176 min | — |
| Frontier Airlines | 1 | — | 100% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ORD to MKE Chicago back to Milwaukee 64.07% on time FOther routes from Milwaukee
Common questions
Are flights from Milwaukee to Chicago usually delayed?
67.42% of flights on the MKE to ORD route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airline is most on time from Milwaukee to Chicago?
Republic Airways, at 73.08% on time across 113 flights. The least punctual on the route was SkyWest Airlines at 67.29%.
How often are MKE to ORD flights cancelled?
4.33% of scheduled flights did not operate — about 43 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Milwaukee to Chicago?
February, when 75.1% of flights arrived on time. The worst was July at 57.4%.
When MKE to ORD flights are late, how late are they?
About 94 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on MKE to ORD during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →