Frontier Airlines MIA to ORD on-time performance
Frontier Airlines nonstop flights from Miami to Chicago · Aug 2025 – Jul 2026
On-time arrivals
73%
arrived < 15 min late
Cancelled
2.2%
1 flights
Avg arrival delay
49 min
175 min when late
Rank on route
#1 of 4
route average 71% on time
Key facts
- Frontier Airlines flights on MIA to ORD arrived on time 73% of the time in Aug 2025 – Jul 2026.
- 2.2% were cancelled, and 13% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 71% on time overall.
- The largest source of delay minutes was late-arriving aircraft (77%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft77%
- Air traffic control & airport congestion19%
- Airline (crew, maintenance, cleaning, fueling)4%
- Extreme weather0%
- Security0%
Other airlines on MIA to ORD
- American Airlines72% on time · 22 min avg delay
- United Airlines70% on time · 27 min avg delay
- Spirit Airlines63% on time · 24 min avg delay
Full MIA to ORD comparison →
Frontier Airlines on-time record across all routes →
46 Frontier Airlines flights tracked on this route; 1 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.