United Airlines STL to EWR on-time performance
United Airlines nonstop flights from St. Louis to Newark · Aug 2025 – Jul 2026
On-time arrivals
70%
arrived < 15 min late
Cancelled
2.5%
4 flights
Avg arrival delay
28 min
90 min when late
Rank on route
#2 of 2
route average 81% on time
Key facts
- United Airlines flights on STL to EWR arrived on time 70% of the time in Aug 2025 – Jul 2026.
- 2.5% were cancelled, and 12% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 81% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (56%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion56%
- Late-arriving aircraft28%
- Airline (crew, maintenance, cleaning, fueling)15%
- Extreme weather1%
- Security0%
Other airlines on STL to EWR
- Republic Airways83% on time · 16 min avg delay
Full STL to EWR comparison →
United Airlines on-time record across all routes →
158 United 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.