DEN to MKE flight delays & on-time performance
Nonstop flights from Denver International Airport to General Mitchell International Airport · 896 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DEN or MKE right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Denver (DEN) to Milwaukee (MKE) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.4% were cancelled, and 7% arrived an hour or more late.
- United Airlines was the most punctual airline here (83% on time); Southwest Airlines was the least (73%).
- Departures scheduled around 9am did best (92% on time); around 7pm did worst (39%).
- Tuesday was the most reliable day to fly (81% on time) and Friday the least (72%).
- The largest source of delay minutes was late-arriving aircraft (42%).
Which airline is most on time from DEN 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 |
|---|---|---|---|---|---|
| Frontier Airlines | 90% | 0.0% | 6 min | 3.8% | 52 |
| United Airlines | 83% | 0.0% | 11 min | 4.6% | 713 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 74% | 0.3% | 22 min | 10.8% | 308 |
| Southwest Airlines | 73% | 0.6% | 16 min | 8.3% | 1,246 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am92%71 flights
- 8am91%95 flights
- 9am92%143 flights
- 10am84%335 flights
- 11am83%147 flights
- 12pm87%54 flights
- 1pm86%271 flights
- 2pm73%116 flights
- 3pm74%117 flights
- 4pm85%42 flights
- 5pm68%369 flights
- 6pm70%228 flights
- 7pm39%116 flights
- 8pm67%179 flights
- 9pm74%35 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%0.8% cancelled
- Tuesday81%0.0% cancelled
- Wednesday78%0.6% cancelled
- Thursday75%0.3% cancelled
- Friday72%0.0% cancelled
- Saturday80%0.4% cancelled
- Sunday76%0.6% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft42%
- Airline (crew, maintenance, cleaning, fueling)38%
- Air traffic control & airport congestion16%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Airline (crew, maintenance, cleaning, fueling)22%
- Air traffic control & airport congestion11%
- Security0%
DEN to MKE: common questions
- How often are DEN to MKE flights on time?
- 77% 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 Denver to Milwaukee cancelled?
- 0.4% of scheduled flights were cancelled (9 of 2,319).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 60 min behind schedule on average, and 7.4% of flights were an hour or more late.
- How long is taxi time at DEN?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MKE to DEN — 79% on time
More flights from Denver
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DEN → MKE, nonstop flights by US airlines that report to the DOT. How we calculate this.