MKE to DEN flight delays & on-time performance
Nonstop flights from General Mitchell International Airport to Denver International Airport · 896 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MKE or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Milwaukee (MKE) to Denver (DEN) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.4% were cancelled, and 6% arrived an hour or more late.
- Southwest Airlines was the most punctual airline here (80% on time); United Airlines was the least (78%).
- Departures scheduled around 5am did best (97% on time); around 8pm did worst (57%).
- Saturday was the most reliable day to fly (81% on time) and Monday the least (77%).
- The largest source of delay minutes was air traffic control & airport congestion (33%).
Which airline is most on time from MKE to DEN?
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 |
|---|---|---|---|---|---|
| Southwest Airlines | 80% | 0.6% | 12 min | 5.4% | 1,248 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 78% | 0.3% | 13 min | 6.5% | 308 |
| United Airlines | 78% | 0.1% | 15 min | 7.5% | 714 |
| Frontier Airlines | 73% | 0.0% | 21 min | 11.5% | 52 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am97%295 flights
- 6am96%68 flights
- 7am94%31 flights
- 8am82%390 flights
- 9am85%34 flights
- 10am84%295 flights
- 11am73%66 flights
- 12pm76%83 flights
- 1pm88%34 flights
- 2pm79%244 flights
- 3pm78%50 flights
- 4pm76%182 flights
- 5pm64%201 flights
- 6pm58%208 flights
- 7pm76%68 flights
- 8pm57%72 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%0.5% cancelled
- Tuesday81%0.3% cancelled
- Wednesday78%0.3% cancelled
- Thursday78%0.3% cancelled
- Friday79%0.3% cancelled
- Saturday81%0.4% cancelled
- Sunday79%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.
- Air traffic control & airport congestion33%
- Late-arriving aircraft31%
- Airline (crew, maintenance, cleaning, fueling)31%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather56%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion11%
- Security0%
MKE to DEN: common questions
- How often are MKE to DEN flights on time?
- 79% 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 Milwaukee to Denver cancelled?
- 0.4% of scheduled flights were cancelled (9 of 2,322).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 59 min behind schedule on average, and 6.3% of flights were an hour or more late.
- How long is taxi time at MKE?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to MKE — 77% on time
More flights from Milwaukee
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MKE → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.