Frontier Airlines STL to ATL on-time performance
Frontier Airlines nonstop flights from St. Louis to Atlanta · Aug 2025 – Jul 2026
On-time arrivals
60%
arrived < 15 min late
Cancelled
1.8%
4 flights
Avg arrival delay
40 min
96 min when late
Rank on route
#3 of 3
route average 85% on time
Key facts
- Frontier Airlines flights on STL to ATL arrived on time 60% of the time in Aug 2025 – Jul 2026.
- 1.8% were cancelled, and 17% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 85% on time overall.
- The largest source of delay minutes was late-arriving aircraft (42%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft42%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion17%
- Extreme weather12%
- Security0%
Other airlines on STL to ATL
- Delta Air Lines89% on time · 9 min avg delay
- Southwest Airlines80% on time · 12 min avg delay
Full STL to ATL comparison →
Frontier Airlines on-time record across all routes →
222 Frontier Airlines flights tracked on this route; 4 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.