Frontier Airlines MKE to DEN on-time performance
Frontier Airlines nonstop flights from Milwaukee to Denver · Aug 2025 – Jul 2026
On-time arrivals
73%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
21 min
75 min when late
Rank on route
#4 of 4
route average 79% on time
Key facts
- Frontier Airlines flights on MKE to DEN arrived on time 73% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 12% arrived an hour or more late.
- That ranks #4 of 4 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (44%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion44%
- Late-arriving aircraft25%
- Airline (crew, maintenance, cleaning, fueling)21%
- Extreme weather10%
- Security0%
Other airlines on MKE to DEN
- Southwest Airlines80% on time · 12 min avg delay
- United Airlines78% on time · 15 min avg delay
- SkyWest Airlines78% on time · 13 min avg delay
Full MKE to DEN comparison →
Frontier Airlines on-time record across all routes →
52 Frontier Airlines flights tracked on this route; 0 cancelled, 0 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.