Skip to content
WanderNerd
Check a flight

Route Reliability

Pittsburgh → San Francisco

PIT–SFO · 2,254 miles · Pittsburgh International Airport to San Francisco International Airport

88
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
2 min
Average arrival delay
0.5%
Cancelled
557
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 83% of the time across 557 flights. No comparison to make.

What the data says

Morning flights do better here.

PIT–SFO flights departing between 9 AM–12 PM arrived on time 89% of the time, versus 44% between 6–9 PM.

Monday is the weak spot.

PIT–SFO flights arrived on time 87% of the time on Saturdays. On Mondays: 75%.

Ticking up lately.

PIT–SFO flights arrived on time 82% of the time over the last three months in the data, compared with 76% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon75%(89 flights)
  • Tue82%(65 flights)
  • Wed87%(75 flights)
  • Thu84%(88 flights)
  • Fri86%(84 flights)
  • Sat87%(62 flights)
  • Sun84%(89 flights)
On-time by departure window
  • 6–9 AM88%(306 flights)
  • 9 AM–12 PM89%(56 flights)
  • 3–6 PM80%(158 flights)
  • 6–9 PM44%(32 flights)
On-time trend by month
73%
May

Jun 73% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%56
July 202584%57
August 202589%54
September 202596%51
October 202594%48
November 202592%49
December 202572%43
January 202680%35
February 202675%28
March 202697%32
April 202674%43
May 202673%56

Keep nerding

Based on 557 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.