OnTimeRoutes
B

United Airlines SAN to EWR on-time performance

United Airlines nonstop flights from San Diego to Newark · Aug 2025 – Jul 2026

On-time arrivals
82%
arrived < 15 min late
Cancelled
2.0%
25 flights
Avg arrival delay
16 min
86 min when late
Rank on route
#1 of 2
route average 82% on time

Key facts

  • United Airlines flights on SAN to EWR arrived on time 82% of the time in Aug 2025 – Jul 2026.
  • 2% were cancelled, and 7% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 82% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (42%).

On-time trend by month

60%80%100%July 2025: 76.7% on time, 3.3% cancelledJul ’25August 2025: 77.9% on time, 1.6% cancelledAug ’25September 2025: 88.1% on time, 1.8% cancelledSep ’25October 2025: 85.0% on time, 0.0% cancelledOct ’25November 2025: 77.3% on time, 1.1% cancelledNov ’25December 2025: 75.6% on time, 1.1% cancelledDec ’25January 2026: 85.2% on time, 5.4% cancelledJan ’26February 2026: 90.9% on time, 7.2% cancelledFeb ’26March 2026: 70.7% on time, 0.0% cancelledMar ’26April 2026: 95.6% on time, 0.0% cancelledApr ’26May 2026: 94.2% on time, 1.0% cancelledMay ’26June 2026: 80.5% on time, 0.9% cancelledJun ’26July 2026: 70.0% on time, 4.9% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion42%
  • Airline (crew, maintenance, cleaning, fueling)23%
  • Late-arriving aircraft21%
  • Extreme weather14%
  • Security0%

Other airlines on SAN to EWR

1,232 United Airlines flights tracked on this route; 25 cancelled, 12 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.