Frontier Airlines ORD to MIA on-time performance
Frontier Airlines nonstop flights from Chicago to Miami · Aug 2025 – Jul 2026
On-time arrivals
64%
arrived < 15 min late
Cancelled
2.2%
1 flights
Avg arrival delay
43 min
120 min when late
Rank on route
#3 of 4
route average 74% on time
Key facts
- Frontier Airlines flights on ORD to MIA arrived on time 64% of the time in Aug 2025 – Jul 2026.
- 2.2% were cancelled, and 13% arrived an hour or more late.
- That ranks #3 of 4 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (55%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)55%
- Air traffic control & airport congestion24%
- Late-arriving aircraft21%
- Extreme weather0%
- Security0%
Other airlines on ORD to MIA
- American Airlines76% on time · 19 min avg delay
- United Airlines74% on time · 17 min avg delay
- Spirit Airlines60% on time · 29 min avg delay
Full ORD to MIA 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.