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Route Reliability

San Francisco → Pittsburgh

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

96
Nerd Approved
WanderNerd Reliability Score
89%
Arrive within 15 minutes
5 min early
Average arrival delay
0.2%
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 89% of the time across 557 flights. No comparison to make.

What the data says

Morning flights do better here.

SFO–PIT flights departing between 6–9 AM arrived on time 94% of the time, versus 84% between 9 PM–12 AM.

Thursday is the weak spot.

SFO–PIT flights arrived on time 93% of the time on Saturdays. On Thursdays: 86%.

It basically never cancels.

Out of 557 scheduled flights, only 0.2% were cancelled.

Slipping a little lately.

SFO–PIT flights arrived on time 87% of the time over the last three months in the data, compared with 93% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon88%(90 flights)
  • Tue88%(66 flights)
  • Wed92%(75 flights)
  • Thu86%(88 flights)
  • Fri92%(85 flights)
  • Sat93%(61 flights)
  • Sun87%(91 flights)
On-time by departure window
  • 6–9 AM94%(201 flights)
  • 9 AM–12 PM84%(45 flights)
  • 12–3 PM93%(102 flights)
  • 3–6 PM—(4 flights)
  • 9 PM–12 AM84%(204 flights)
On-time trend by month
88%
May

Jun 88% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%56
July 202586%57
August 202580%54
September 202590%51
October 202594%49
November 202596%49
December 202596%44
January 202691%35
February 202693%28
March 202688%33
April 202686%43
May 202688%57

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.