ORD to MKE flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to General Mitchell International Airport · 67 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or MKE right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chicago (ORD) to Milwaukee (MKE) arrived on time 65% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.9% were cancelled, and 17% arrived an hour or more late.
- Departures scheduled around 8am did best (75% on time); around 5pm did worst (53%).
- Tuesday was the most reliable day to fly (70% on time) and Sunday the least (59%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (38%).
Which airline is most on time from ORD to MKE?
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 |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 80% | 7.1% | 14 min | 9.5% | 113 |
| PSA AirlinesRegional airline operating American Eagle flights. | 73% | 15.4% | 87 min | 18.2% | 26 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 64% | 4.8% | 33 min | 17.1% | 5,000 |
| Envoy AirRegional airline operating American Eagle flights. | 64% | 3.9% | 26 min | 14.5% | 129 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am75%165 flights
- 8am75%195 flights
- 9am73%316 flights
- 10am69%328 flights
- 11am69%245 flights
- 12pm67%283 flights
- 1pm74%157 flights
- 2pm66%316 flights
- 3pm66%323 flights
- 4pm55%397 flights
- 5pm53%523 flights
- 6pm59%327 flights
- 7pm63%505 flights
- 8pm67%428 flights
- 9pm65%501 flights
- 10pm59%153 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday61%6.1% cancelled
- Tuesday70%4.2% cancelled
- Wednesday69%2.3% cancelled
- Thursday65%5.0% cancelled
- Friday63%5.0% cancelled
- Saturday67%6.1% cancelled
- Sunday59%5.2% 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)38%
- Late-arriving aircraft30%
- Extreme weather16%
- Air traffic control & airport congestion16%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather85%
- Air traffic control & airport congestion14%
- Airline (crew, maintenance, cleaning, fueling)2%
- Security0%
ORD to MKE: common questions
- How often are ORD to MKE flights on time?
- 65% 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 Chicago to Milwaukee cancelled?
- 4.9% of scheduled flights were cancelled (256 of 5,268).
- How long are typical delays?
- Across all flights the average arrival delay was 33 min (early arrivals count as zero). Flights that were late arrived 91 min behind schedule on average, and 16.9% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 32 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MKE to ORD — 68% on time
More flights from Chicago
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → MKE, nonstop flights by US airlines that report to the DOT. How we calculate this.