OnTimeRoutes
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United Airlines BNA to SFO on-time performance

United Airlines nonstop flights from Nashville to San Francisco · Aug 2025 – Jul 2026

On-time arrivals
76%
arrived < 15 min late
Cancelled
0.7%
6 flights
Avg arrival delay
15 min
58 min when late
Rank on route
#1 of 2
route average 69% on time

Key facts

  • United Airlines flights on BNA to SFO arrived on time 76% of the time in Aug 2025 – Jul 2026.
  • 0.7% were cancelled, and 7% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 69% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (49%).

On-time trend by month

40%70%100%July 2025: 82.5% on time, 3.6% cancelledJul ’25August 2025: 89.8% on time, 0.0% cancelledAug ’25September 2025: 93.4% on time, 0.0% cancelledSep ’25October 2025: 86.1% on time, 0.0% cancelledOct ’25November 2025: 76.9% on time, 0.0% cancelledNov ’25December 2025: 75.4% on time, 0.0% cancelledDec ’25January 2026: 70.2% on time, 6.0% cancelledJan ’26February 2026: 70.5% on time, 0.0% cancelledFeb ’26March 2026: 81.9% on time, 0.0% cancelledMar ’26April 2026: 58.4% on time, 0.0% cancelledApr ’26May 2026: 72.3% on time, 0.0% cancelledMay ’26June 2026: 60.0% on time, 1.3% cancelledJun ’26July 2026: 74.0% on time, 2.5% 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 congestion49%
  • Airline (crew, maintenance, cleaning, fueling)28%
  • Late-arriving aircraft18%
  • Extreme weather4%
  • Security0%

Other airlines on BNA to SFO

847 United Airlines flights tracked on this route; 6 cancelled, 4 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.