Frontier Airlines DEN to IAH on-time performance
Frontier Airlines nonstop flights from Denver to Houston · Aug 2025 – Jul 2026
On-time arrivals
80%
arrived < 15 min late
Cancelled
0.2%
2 flights
Avg arrival delay
12 min
57 min when late
Rank on route
#1 of 2
route average 79% on time
Key facts
- Frontier Airlines flights on DEN to IAH arrived on time 80% of the time in Aug 2025 – Jul 2026.
- 0.2% were cancelled, and 7% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was late-arriving aircraft (54%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft54%
- Airline (crew, maintenance, cleaning, fueling)23%
- Air traffic control & airport congestion19%
- Extreme weather3%
- Security0%
Other airlines on DEN to IAH
- United Airlines79% on time · 14 min avg delay
Full DEN to IAH comparison →
Frontier Airlines on-time record across all routes →
816 Frontier Airlines flights tracked on this route; 2 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.