Frontier Airlines ORD to DEN on-time performance
Frontier Airlines nonstop flights from Chicago to Denver · Aug 2025 – Jul 2026
On-time arrivals
70%
arrived < 15 min late
Cancelled
3.0%
10 flights
Avg arrival delay
37 min
121 min when late
Rank on route
#4 of 5
route average 75% on time
Key facts
- Frontier Airlines flights on ORD to DEN arrived on time 70% of the time in Aug 2025 – Jul 2026.
- 3% were cancelled, and 15% arrived an hour or more late.
- That ranks #4 of 5 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was late-arriving aircraft (52%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft52%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion10%
- Extreme weather6%
- Security0%
Other airlines on ORD to DEN
- United Airlines79% on time · 16 min avg delay
- American Airlines66% on time · 27 min avg delay
- Southwest Airlines74% on time · 18 min avg delay
- Envoy Air76% on time · 13 min avg delay
Full ORD to DEN comparison →
Frontier Airlines on-time record across all routes →
331 Frontier Airlines flights tracked on this route; 10 cancelled, 1 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.